NAME: Ching Shung Chang

PRESENT POSITION: Professor Department of Civil Engineering University of Massachusetts Amherst, Massachusetts 01003

DATE OF BIRTH: December 19, 1947

EDUCATION: B.S. Chen Kung University, Taiwan, 1969.

M.E. in Soil Mechanics, University of South Carolina, 1971

Ph.D. in Soil Mechanics, University of California, Berkeley, 1976 Thesis Title: "Analysis of Consolidation of Earth and Rockfill Dams"

PROFESSIONAL REGISTRATION:

Professional Engineer New York: License No. 057268 Massachusetts: License No. 30028

PROFESSIONAL EXPERIENCE:

9/90 to present Professor Department of Civil Engineering University of Massachusetts Amherst, MA 01003

9/82 to 7/90 Associate Professor Department of Civil Engineering University of Massachusetts Amherst, MA 01003

6/79 to 9/82 Assistant Professor Department of Civil Engineering University of Massachusetts Amherst, MA 01003

8/77 to 6/79 Assistant Professor Department of Civil Engineering State University of New York at Buffalo Buffalo, New York 14214

6/80 to 8/80 Faculty Fellow Transportation System Center Department of Transportation Cambridge, Massachusetts

10/76 to 6/77 Research Engineer

1 Department of Civil Engineering University of California at Berkeley Berkeley, CA 94720

PROFESSIONAL SOCIETIES:

American Society of Civil Engineers International Society of Soil Mechanics and Foundation Engineering American Society of Mechanical Engineers Transportation Research Board Boston Society of Civil Engineers Sigma Xi

PROFESSIONAL COMMITTEE ASSIGNMENTS:

Member, Geotechnical Committee on Computer and Numerical Methods (ASCE), 1978 to 1987 Member, Technical Council on Computer Practices Publications Committee (ASCE), 1985 to 1988 Member, Geotechnical Committee on Soil Properties (ASCE), 1987 to present Member, Geotechnical Committee on Soil Dynamics (ASCE), 1988 to present Member, EMD Committee on Fluids, Subcommittee on Granular Flow (ASCE), 1991 to 1994 Member, EMD Committee on Matrial Properties, (ASCE), 1995 to 2001 Member, EMD Committee on Granular Matrial, (ASCE), 2002 to present Member, AMD Committee on Geomachanics (ASME), 1991 to present Chair, AMD Committee on Geomachanics (ASME), 1995 to 2001 Member, AMD Committee on Constitutive Equations (ASME), 1992 to present Vice Chair, EMD Committee on Granular Matrial, (ASCE), 2003 to 2004 Chair, EMD Committee on Granular Matrial, (ASCE), 2005 to 2007 Vice Chair, AMD Committee on Geomachanics (ASME), 2002 to 2003

EDITORSHIP ASSIGNMENTS:

Associate Editor of Editorial Board, Journal of Engineering Mechanics Advisory Member of Editorial Board, Acta Mechanica Solida Sinica

2 PUBLICATIONS:

Refereed Journals:

Adeogoke, C. W., Chang, C. S., and Selig, E. T., "A Study of Analytical Models for Track Support System," Transportation Research Record No. 733, Mechanics of Track Support, Piles and Geotechnical Data, Transportation Research Board, 1979, pp. 6-11.

Aihara, I., Duncan, J. M., and Chang, C. S., "Finite Element Analysis of Sheeting for Soft ground," Japanese Society of Civil Engineers, Vol. 64, November 1979, pp. 41-47.

Chang, C. S., Espinosa, J., and Selig, E. T., "Computer Analysis of Newtown Creek Culvert," Journal of Geotechnical Engineering, ASCE, May 1980, Vol. 106, No. GT5, pp. 531-556.

Chang, C. S., "Improved Stress Analysis for Cross-Tie Tracks," by Arnold D. Kerr, Journal of the Engineering Mechanics, ASCE, Vol. 106, No. 3, June 1980, pp. 583-584.

Chang, C. S., Adegoke, C. W., and Selig, E. T., "GEOTRACK Model for Railroad Track Performance," Journal of the Geotechnical Engineering, ASCE, Vol. 106, No. GT11, November 1980, pp. 1201-1218.

Selig, E. T., and Chang, C. S., "Soil Failure Modes in Undrained Cyclic Loadings," Journal of the Geotechnical Engineering, ASCE, Vol. 107, No. GT5, May 1981, pp. 539-551.

Selig, E. T., McVay, M. C., and Chang, C. S., "Finite Element Modeling of Buried Concrete Pipe Installations," Transportation Research Record No. 878, Soil Structure Interaction of Subsurface Conduits, Transportation Research Board, 1982, pp. 17-23.

Chang, C. S., Kuo, C. L., and Selig, E. T., " Pore Pressure Development During Cyclic Loading," Journal of Geotechnical Engineering, ASCE, Vol. 109, No. 1, January 1983, pp. 103-107.

Chang, C. S., "Residual Deformation of Undrained Samples During Cyclic Loading," Journal of the Geotechnical Engineering, ASCE, Vol. 108, No. GT4, April 1982, pp. 637-646.

Chang, C. S., and Duncan, J. M., "Theory of Consolidation for Partly Saturated Clay," International Journal for Numerical and Analytical Methods in Geomechanics, John Wiley and Sons, Vol. 7, No. 1, January-March, 1983, pp. 39-55.

Chang, C. S., "Uncertainty of One Dimensional Consolidation Analysis," Journal of Geotechnical Engineering, ASCE, Vol. 111, No. GT12, December 1985, pp. 1411-1425.

Chang, C. S., "Boundary Element Method in Drawdown Seepage Analysis of Earth Dams," Journal of Computing in Civil Engineering, ASCE, Vol. 1, No. 4, April 1987, pp. 83-99.

Chang, C. S., "Boundary Element Analysis for Unconfined Seepage Problems," Journal of Geotechnical Engineering, ASCE, Vol. 114, No. 5, May 1988, pp. 556-573.

Chang, C. S. and Whitman, R. V., "Drained Permanent Deformation of Sand Due to Cyclic Loading," Journal of Geotechnical Engineering, ASCE, Vol. 114, No. 10, 1988, pp. 1164-1180.

Chang, C. S. and Huang, T. H., "A Constitutive Model for Jointed Rock Masses," Journal of the Chinese Institute of Engineers, Vol. 11, No. 1, 1988, pp. 25-34.

Chang, C. S., Misra, A., and Weeraratne, S. P., "A Slip Mechanism Based Constitutive Model for Granular Soils," Journal of Engineering Mechanics, ASCE, Vol. 115, No. 4, April 1989, pp. 790-807.

3 Chang, C. S. and Misra, A., "Theoretical and Experimental Study of Regular Packings of Granules," Journal of Engineering Mechanics, ASCE, Vol. 115, No. 4, April 1989, pp. 704-720.

Chang, C. S. Misra, A., and Xue, J. H.,"Incremental Stress-Strain Behavior of Packings Made of Multi-sized Particles," International Journal of Solids and Structures, Pergamon Press, Vol. 25, No. 6, 1989, pp. 665-681.

Chang, C. S., Misra, A., and Weeraratne, S. P., "Deformation Behavior of Sand in Cubical and Hollow Cylinder Devices," International Journal for Numerical and Analytical Methods in Geomechanics, John Wiley and Sons, Vol. 13, No. 5, 1989, pp. 493-510.

Chang, C. S., and Misra, A., "Computer Simulation and Modelling of Mechanical Properties of Particulates," Journal of Computer and Geotechniques, Elsevier Science Publishers, Vol. 7, No. 4, 1989, pp.269-287.

Chang, C. S., Sundaram, S. S., and Misra, A., "Initial Moduli of Particulated Mass with Frictional Contacts," International Journal for Numerical and Analytical Methods in Geomechanics, John Wiley and Sons, Vol. 13, No. 6, 1989, pp. 626-641.

Liao, C. L., and Chang, C. S., "Numerical Modelling for Large Deformation of Aggregates of Particles with Meta- Stable Structures," Mathematical and Computer Modelling, Vol. 14, 1990, pp. 921-926.

Chang, C. S., "Strain Tensor and Deformation for Granular Material," Journal of Engineering Mechanics, ASCE, Vol. 116, No.4, 1990, pp. 790-804.

Chang, C. S., and Misra, A., "Packing Structure and Mechanical Properties of Granulates," Journal of Engineering Mechanics, ASCE. Vol. 116, No. 5, 1990, pp. 1077-1093.

Chang, C. S., and Liao, C.,"Constitutive Relations for Particulate Medium with the Effect of Particle Rotation," International Journal of Solids and Structures, Vol. 26, No. 4, 1990, pp. 437-453.

Chang, C. S., Misra, A., and Sundaram S. S., "Micromechanical Modelling for Behaviour of Cemented Sand Subjected to Low Amplitude Cyclic Loading," Geotechnique, Vol. 40, No. 2, 1990, pp. 251-263.

Chang, C. S. and Misra, A., "Application of Uniform Strain Theory to Heterogeneous Granular Solids," Journal of Engineering Mechanics, ASCE. Vol. 116, No. 10, 1990, pp. 2310-2328.

Liao, C. L. and Chang, C. S., "On the Accuracy of Direct Integration Methods for Structural Dynamics," Journal of the Chinese Institute of Engineers, Vol. 13, No. 5, 1990, pp. 479-490.

Chang, C. S. and Ma Lun., "Modelling of Discrete Granulates as Micropolar Continuum," Journal of Engineering Mechanics, ASCE. Vol. 116, No. 12, 1990, pp. 2703-2721.

Liao, C. L., and Chang, C. S., "A Micro-Structural Finite Element Model for Granular Solids," Journal of Engineering Computations, Vol. 9, No. 2, Pineridge Press Ltd., Swansea, U.K. 1992, pp. 267-276.

Chang, C. S., Misra, A., and Sundaram S. S., "Properties of Granular Packings under Low Amplitude Cyclic Loading," International Journal of Soil Dynamics and Earthquake Engineering, Vol. 10, No. 4, 1991, pp. 201-211.

Chang, C. S., and Ma, L., "A Micromechanical-Base Micro-polar Theory for Deformation of Granular Solids," International Journal of Solids and Structures, Vol. 28, No. 1, 1991, pp. 67-86.

Chang, C. S., and Ma, L., "Elastic Material Constants for Isotropic Granular Solids with Particle Rotation," International Journal of Solids and Structures, Pergamon Press, Vol. 29, No. 8, 1992, pp. 1001-1018.

4 Chang, C. S., and Chao, S., "Discrete Element Method for Problems of Bearing Capacity," Journal of Computers and Geotechniques, Elsevier Science Publishers, Crown House, England, Vol. 12, No. 4, 1991, pp. 273-288.

Chang, C. S., "A Discrete Element Method for Slope Stability Analysis," Journal of Geotechnical Engineering, ASCE, Vol. 118, No. 12, 1992, pp. 1889-1906.

Chang, C. S., Misra, A., and Acheampon, K., "Elastoplastic Deformation of Granulates with Frictional Contacts," Journal of Engineering Mechanics, ASCE, Vol. 118, No. 8, 1992, pp. 1692-1708.

Chang, C. S., Chang, Y., and Kabir, M., "Micromechanics Modelling for the Stress-Strain Behavior of Granular Soil - I: Theory," Journal of Geotechnical Engineering, ASCE, Vol. 118, No. 12, 1992, 1959-1974.

Chang, C. S., Kabir, M., and Chang, Y., "Micromechanics Modelling for the Stress-Strain Behavior of Granular Soil - II: Evaluation," Journal of Geotechnical Engineering, ASCE, Vol. 118, No. 12, 1992, pp. 1975-1994.

Chang, C. S., "Micromechanics Modeling for Deformation and Failure of Granulates with Frictional Contacts," Mechanics of Material, Elsevier Science Publishers, Amsterdam, Vol. 16, No.1-2, 1993, pp. 13-24.

Misra, A. and Chang, C. S., "Effevtive Elastic Moduli of Heterogeneous Granular Solids," International Journal of Solids and Structures, Pergamon Press, Vol. 30, No. 18, 1993, pp. 2547-2566.

Chang, C. S., and Liao, C. L., "Estimates of elastic modulus for media of randomly packed granules," Applied Mechanics Reviews, ASME, Vol. 47, No. 1, Part 2, 1994, pp. 197-206.

Ma, L. and Chang, C. S., "Pressure Excerted on Soil Due to Rocking of Liquid Storage Tank," Journal of Geotechnical Engineering, ASCE, Vol. 119, No. 11, 1994, pp. 1679-1695.

Chang, C. S., and Chao, S., "Discrete Element Analysis for Active and Passive Pressure Distribution on Retaining Wall," Journal of Computers and Geotechniques, Elsevier Science Publishers, Crown House, England, Vol. 16, 1994, pp. 291-310.

Chang, C. S., Chao, S. C., and Chang Y., "Estimates of Mechanical Properties of Granulates with Anisotropic Random Packing Structure," International Journal of Solids and Structures, Pergamon Press, Vol. 32, No. 14, 1995, pp. 1989-2008.

Chang, C. S., and Gao, J., "Second-Gradient Constitutive Theory for Granular Material with Random Packing Structure," International Journal of Solids and Structures, Pergamon Press, Vol. 32, No. 16, 1995, pp. 2279- 2293.

Chang, C. S. and Gao, J., "Non-linear Dispersion of Plane Wave in Granular Media," International Journal of Non-linear Mechanics, Vol. 30, No. 2, 1995, pp. 111-128.

Huang, T. H., Chang, C. S., and Yang, Z. Y., "Elastic Moduli for Fractured Rock Mass," International Journal for Rock Mechanics and Rock Engineering, Springer-Verlag, Vol. 28, No.3, 1995, pp135-144.

Chang, C. S., and Chang, Y., "Green's Function for Elastic Medium with General Anisotropy," Journal of Appled Mechanics, Transactions of the ASME, Vol. 62, No. 3, 1995, pp. 573-578.

Chang, C. S., and Gao, J., "Kinematic and Static Hypotheses for Constitutive Modelling of Granulates Considering Particle Rotation," Acta Mechanica, Springer-Verlag, Vol. 115, No. 1-4, 1996, pp.213-229.

Zhu, H., Chang, C. S. and Rish, J. W, "Tangential and Normal Compliance for Conforming Binder Contact. I: Elastic Binder," International Journal of Solids and Structures, Pergamon Press, Vol. 33 , No. 29, 1996, pp. 4337-4349.

5 Zhu, H., Chang, C. S. and Rish, J. W, "Tangential and Normal Compliance for Conforming Binder Contact. II: Visco-Elastic Binder," International Journal of Solids and Structures, Pergamon Press, Vol. 33, No. 29, 1996, pp. 4351-4363.

Chang, C. S. and Gao, J., “Wave Propagation in a Granular Rod Using High-Gradient Theory,” Journal of Engineering Mechanics, ASCE , Vol. 123, No. 1, 1997, pp. 52-59.

Emeriault, F. and Chang, C.S., “ Interparticle Forces and Displacements in granular Materials,” Computers and Geotechnics, Elsevier Publication, Vol. 20, No. 3 / 4, , 1997, pp. 223-244.

Emeriault, F. and Chang, C.S., “Anisotropic Elastic Moduli of Granular Assemblies from Micromechanical Approach,” Journal of Engineering Mechanics, ASCE Publication, Vol. 123, No. 12, 1997, pp. 1289-1293.

Chang, C. S. and Gao, J., “Rheological Modeling of Randomly Packed Granues with Visco-Elastic Binders of Maxwell Type,” Computer and Geotechnique, Elsevier Publication, Vol. 21, No. 1, 1997, pp. 41- 63.

Zhu, H. and Chang, C.S., “Rolling Compliance for conforming binder contact,” International Journal of Solids and Structures, Pergamon Press, Vol. 34, Nos. 31-32, 1997, pp. 4073-4086.

Liao, C. L., Chang T. P., Young D. and Chang C. S., “Stress-strain Relationship for Granular Materials Bases on Hypothesis of Best Fit,” International Journal of Solids and Structures, Pergamon Press, Vol. 34, Nos. 31-32, 1997, pp. 4087-4100.

Zhong, X. and Chang, C. S., “Fracture Analysis of Cementituous Granular Materials,” Recent Development in Fracture Sensing and Analysis, Editor R. Gao, AMD- Vol. 971, UMA Press, 1998, pp. 24-29.

Chang, C. S., “Modeling of Granular Materials with Intrinsic Length Scale,” Journal de Physique IV, Vol. 8, Pr. 8, 1998, EDP Sciences, de Courtaboeuf, France, pp. 71-78.

Chang, C. S., Gao, J., and Zhong, X., “High-Gradient Modeling for Love Wave Propagation in Granular Material,” Journal of Engineering Mechanics, ASCE Publication, Vol. 124, No. 12, 1998, pp. 1354-1360.

Chang, C. S., Shi, Q., and Zhu, H., “Micro-mechanical Modeling for Elastic Moduli of Bonded Granules,” Journal of Engineering Mechanics, ASCE Publication, Vol. 125, No. 6, 1999, pp. 648-653.

Suiker, A.S.J., Chang, C.S., “Application of Higher Order Tensor Theory for Formulating Enhanced Continuum Models,” Acta Mechanica, Springer-Verlag, Vol. 142, 2000, pp.223-234.

Suiker, A.S.J., Chang, C.S., deBorst, R, and Esveld, C, “Surface Waves in a Stratified Half Space with Enhanced Continuum Properties, Part-1 - Formulation of the Boundary Value Problem,” European Journal of Mechanics (Solids), Vol. 18, 1999, pp. 749-768.

Suiker, A.S.J., Chang, C.S., deBorst, R, and Esveld, C, “Surface Waves in a Stratified Half Space with Enhanced Continuum Properties, Part-2 – Analysis of the wave Characteristics in Regard to High Speed Railway tracks,” European Journal of Mechanics (Solids), Vol. 18, 1999, pp. 769-784.

Liao, C. L., Chan, T.C., Suiker, A.S.J., and Chang, C.S., “Pressure-dependent Elastic Moduli of Granular Assemblies,” International Journal for Analytical and Numerical Methods in Geomechanics, 2000, Vol. 24, pp. 265 – 279.

Zhong , X., and Chang, C. S., “Micromechanical Modeling for the Behavior of Cementitious Granular Materials,” Journal of Engineering Mechanics, ASCE Publication, Vol. 125, No. 11, 1999, pp. 1280-1285.

6 Zhu, H., Chang C.S., and Lou, K.A., “2-D Normal Compliances for Elastic and Visco-elastic Binder Contact with Finite Particle Size Effect,” International Journal of Solids and Structures, Pergamon Press, Vol. 37, 2000, pp. 7703-7716.

Suiker, A.S.J., deBorst, R, and Chang, C.S., “Micro-mechanical Modeling of Granular Material, part 1 – Derivation of a Second-Gradient Micro-Polar Constitutive Theory,” Acta Mechanica, Springer-Verlag, Vol. 149, 2001, pp.161-180.

Suiker, A.S.J., deBorst, R, and Chang, C.S., “Micro-mechanical Modeling of Granular Material, part 2 – Plane Wave Propagation in Infinite Media,” Acta Mechanica, Springer-Verlag, Vol. 149, 2001, pp.181-200.

Zhu, H., Chang, C.S., and Rish, J., “Derivation of Contact based Torsion Compliance and its Application in Asphalt Motar Modeling,” Journal of Applied Mechanics, 2002 (accepted).

Anil Misra, Ching S. Chang, K. T. Chau, “Mechanics of fracture and failure in geomaterials,“Journal of Engineering Fracture Mechanics, Elsevier Science Ltd., Vol. 69, No. 17, 2002, pp.1813-1814.

Chang, C. S., Askes, H., and Sluys, L. J., “A higher-order strain/higher-order stress gradient models derived from a discrete microstructure, with application to fracture,” Journal of Engineering Fracture Mechanics, Elsevier Science Ltd., Vol. 69, No. 17, 2002, pp.1907-1924.

Chang, C. S., Wang, T. K., Sluys, L. J., and vanMier J. G. M., “Fracture Modeling using a Microstructural Mechanics Approach – I. Theory and Formulation,” Journal of Engineering Fracture Mechanics, Elsevier Science Ltd., Vol. 69, No. 17, 2002, pp.1941-1958.

Chang, C. S., Wang, T. K., Sluys, L. J., and vanMier J. G. M., “Fracture Modeling using a Microstructural Mechanics Approach – II. Finite Element Analysis,” Journal of Engineering Fracture Mechanics, Elsevier Science Ltd., Vol. 69, No. 17, 2002, pp.1959-1976.

Huang, T. H. Chang, C. S., and C.Y. Chao, “Experimental and Mathematical Modeling for Fracture of Rock Joint with regular asperities,” Journal of Engineering Fracture Mechanics, Elsevier Science Ltd., Vol. 69, No. 17, 2002, pp.1977-1996.

Chang, C. S., Matsushima, T., and Lee, X., “Heterogeneous strain and bonded granular structure change in triaxial specimen studied by computer tomography,” Journal of Engineering Mechanics, ASCE, Vol. 129, No. 11, 2003, pp1295-1307.

Chang, C. S., Shi, Q., and Liao, C. L., “Elastic Constants for Granular Materials Modelled as First-order Strain-gradient Continua,” International Journal of Solids and Structures, Pergamon Press, Vol. 40, 2003, pp. 5565-5582.

Suiker, A.S.J., and Chang C.S., “Modelling Failure and Deformation of an Assembly of Spheres with Frictional Contacts,” Journal of Engineering Mechanics, Vol. 130, No. 3, 2004, pp. 283-293.

Chang, C. S. and Kuhn , M. R., “On Virtual Work and Stress in Granular Media,” International Journal of Solids and Structures, Vol 42, Pergamon Press, 2005, pp 3773-3793.

Chang, C.S. and Shi, Q., “A Mix-mode Elastic Finite Element Formulation for Bonded Granular Material Considering Rotation of Particles,” Journal of Engineering Mechanics, Vol. 131, No. 2, 2005, pp. 120-130.

Chang, C. S. and Hicher , P. Y., “An Elasto-plastic Model for Granular Materials with Microstructural Consideration,” International Journal of Solids and Structures, Pergamon Press, Vol. 42, 2005, pp. 4258 -4277.

7 Hicher , P. Y. and Chang, C. S., “Anisotropic Nonlinear Elastic Model for Particulate Materials,” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 132, Issue 8, 2006, pp. 1052-1061.

Hicher , P. Y. and Chang, C. S., “Evaluation of Two Homogenization Techniques for Modeling the Elastic Behavior of Granular Materials,” Journal of Engineering Mechanics, ASCE, Vol. 131, Issue 11, 2005, pp. 1184-1194.

Kuhn, M. R. and Chang C. S., “Stability, bifurcation, and softening in discrete systems: a conceptual approach for granular materials,” International Journal of Solids and Structures, Vol. 43, No. 20, 2006, pp. 6026-6051.

Hicher , P. Y. and Chang, C. S., “A Microstructural Elastoplastic Model for Unsaturated Granular Materials,” International Journal of Solids and Structures, Pergamon Press, Vol. 44, 2007, pp. 2304-2323.

Hicher , P. Y. and Chang, C. S., “An Elastic Model for Partly Saturated Granular Materials,” Journal of Engineering Mechanics, ASCE, Vol. 134, No. 6, 2008, pp. 505-513.

Hicher , P. Y., Chang, C. S. and Dano, C., “Multi-scale Modeling of Grouted Sand Behavior,” International Journal of Solids and Structures, Pergamon Press, Vol. 45, No. 16, 2008, pp. 4362- 4374.

Hicher, P.Y., Dano C. & Chang C. S., “Multi-scale Modelling of the Mechanical Behaviour of Grouted Sand”, Studia Geotechnica et Mechanica, Vol. 30, No. 1-2, 2008, pp. 83-94.

Chang, C. S. and Hicher , P. Y., “A Model for Granular Materials with Surface Energy Forces,” Journal of Aerospace Engineering, ASCE, Vol. 22, No. 1, 2009, pp.43-52.

Chang, C. S., Hicher , P. Y., Yin, Z.Y. and Kong, L., “Elastoplastic Model for Clay with Microstructural Consideration,” Jounal of Engineering Mechanics, Pergamon Press, Vol. 135, No. 9, 2009, pp. 917-931.

Chang, C. S., Hicher , P. Y. and Daouadji, A., “Investigating Instability of Granular Materials by means of a Micromechanical Model,” European Journal of Environmental and Civil Engineering, Vol. 13, No. 2, 2009, pp.167-186.

Yin Z.Y., Chang C.S., Hicher P.Y., Karstunen M., “Micromechanical Analysis of Kinematic Hardening in Natural Clay,” International Journal of Plasticity, Vol. 25, No. 8, 2009, pp. 1413-1435.

Yin Z.Y. & Chang C.S., “Microstructural Modelling of Stress-dependent Behaviour of Clay,” International Journal of Solids and Structures, Vol. 46, No. 6, 2009, pp. 1373-1388.

Yin Z.Y. & Chang C.S., “Non-uniqueness of Critical State Line in Compression and Extension Conditions,” International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 33, 2009, pp. 1315-1338.

Chang C.S., Yin Z.Y., “Modeling Stress-dilatancy for Sand under Compression and Extension Loading Conditions,” ASCE Journal of Engineering Mechanics, Vol.136, No. 6, 2010, pp 777-786.

Yin Z.Y., Chang C.S., Hicher P.Y., “Micromechanical Modelling for Effect of Inherent Anisotropy on Cyclic Behaviour of Sand,” International Journal of Solids and Structures, Vol. 47, No. 14-15, 2010, pp 1933-1951.

Yin Z.Y., Chang C.S., Karstunen M., Hicher P.Y., “An Anisotropic Elastic Viscoplastic Model for Soft Soils,” International Journal of Solids and Structures, Vol. 47, No. 5, 2010, pp 665-677.

Chang C.S., Yin Z.Y., “Micromechanical Modelling for Inherent Anisotropy in Granular Materials,” ASCE Journal of Engineering Mechanics, Vol. 136, No. 7, 2010, pp 830-839.

Chang, C. S., Cerato, A. B., and Lutenegger, A. J., “Modeling the Scale Effect of Granular Media for Strength and Bearing Capacity,” in the special issue on Unified Approach for Characterizing, Modeling and Simulating

8 of Stone-Based Infrastructure Materials, International Journal of Pavement Engineering, Vol 11, No. 5, 2010, pp 343-353.

Yin Z.Y., Karstunen M., Chang C.S., Koskinen M., Lojander M., ”Modeling Time-dependent Behavior of Soft Sensitive Clay,” ASCE Journal of Geotechnical and Geoenvironmental Engineering. Vol. 137, No. 11, 2011, p. 1103-1113.

Chang C.S., Yin Z.Y., Hicher P.Y., “Micromechanical Analysis for Inter-particle and Assembly Instability of Sand,” ASCE Journal of Engineering Mechanics, Vol. 137, No. 3, 2011, pp 155-168.

Chang C.S., and Yin Z.Y., “Micromechanical Modeling for Behavior of silty Sand with Influence of Fines,” International Journal of Solids and Structures , Vol. 48, No. 15, 2011, pp 2655-2667.

Daouadji, A., Hicher P.Y., Chang C.S., Jrad, M., and Algali H., “Instability in loose sand: Experimental results and numerical simulations with a microstructural model,” Advances in Bifurcation and Degradation in Geomaterials, Springer Series in Geomechanics and Geoengineering Volume 11, 2011, pp 13-31

Matsushima, T., and Chang C. S., “Quantitative evaluation of the effect of irregularly shaped particles in sheared granular assemblies,” Granular Matter, Volume 13, Number 3 (2011), 269-276.

Yin, Z.Y., Chang C. S., Hicher P.Y., and Wang, J. H., “Micromechanical analysis for the behavior of stiff clay. Acta Mechanica Sinica, 2011, volume 27, Number 6, 1013-1022

Chang C.S, Yin Z,and Hicher P.Y., “Multi-scale Analysis of Instability in Sand,” Advances in Bifurcation and Degradation in Geomaterials, Springer Series in Geomechanics and Geoengineering Volume 11, 2011, pp 29- 35

Chang C.S., “Micromechanical modelling of constitutive relations for granular material.” Micromechanics of Granular Materials, Satake, M. and JT Jenkins (Eds.), 2012, Elsevier, Amsterdam, 271-278.

Chang C.S., and Meidani M., “Dominant Grains Network and Behavior of Sand-Silt Mixtures: Stress-Strain Modeling,” International Journal for Numerical and Analytical Methods in Geomechanics, Vol.37, 2013, pp 2563-2589.

Yin Z.Y., Xu Q. and Chang C.S., “Modeling cyclic behavior of clay by micromechanical approach,” ASCE Journal of Engineering Mechanics, 2013, Vol. 139, No. 9, 1305-1309.

Yin Z.Y., and Chang C.S., “Stress-dilatancy behavior for sand under loading and unloading conditions,” International Journal for Numerical and Analytical Methods in Geomechanics, vol. 37, Issue 8, 2013, Pages 855-870.

Chang C.S., and Yang L., “Stress and fabric in granular material,” Theoretical and Applied Mechanics Letters, 2013, Volume 3, Number 2, DOI:10.1063/2.1302102 (early view published on-line, in print).

Hattab M., and Chang, C. S., “Interaggregate force and energy potential effect on clay deformation,” Journal of Engineering Mechanics, 2015. DOI:10.1061/(ASCE)EM.1943-7889.0000898

Edited Books:

Advances in Micromechanics of Granular Materials, Elsevier, Amsterdam, 1992, p. 462, ISBN 0-444-89213-3. (Edited with H. Shen, C.S. Campbell, M. Mehrabadi, and M. Satake.)

9 Mechanics of Granular Materials, a special issue of the Journal of Mechanics of Materials, Elsevier, Amsterdam, 1993, p. 248, ISSN 0167-6636 (Edited with H. Shen, C.S. Campbell, M. Mehrabadi, and M. Satake.)

Homogenization and Constitutive Modeling for Heterogeneous Materials, Applied Mechanics Division Publication, Vol. 166, ASME, N.Y., 1993, p. 97, ISBN-0-7918-1145-X, Edited by C.S. Chang and J.W. Ju.

Mechanics of Materials with Discontinuities and Heterogeneities, Applied Mechanics Division Publication, Vol. 201, ASME, N.Y., 1995, p. 177, ISBN-0-7918-1316-9, Edited by A. Misra and C. S. Chang.

Mechanics of Deformation and Flow of Particulate materials, ASCE Publication, p. 458, 1997, ISBN 0-7844- 0251-5, Edited by C. S. Chang, A. Misra, R. Y. Liang and M. Babic.

Computers and Geotechnics, Elsevier Publication, Vol. 20, No. 3 / 4, 1997, p. 363, ISSN 0266-352X, Edited by A. Misra and C. S. Chang.

Journal of Engineering Fracture Mechanics, Elsevier Science Ltd., Vol. 69, No. 17, 2002, p. 1813-1814, Edited by A. Misra, C.S. Chang and K. T. Chau.

Articles in Books

Chang, C. S., and Abas, M. H. B., "Deformation Analysis for Braced Excavation in Clay," Application of Plasticity and Generalized Stress-Strain in Geotechnical Engineering, Edited by R. N. Yong and E. T. Selig, ASCE Special Publication, 1982, pp.205-226.

Chang, C. S., "Behavior of Plastic Flow for Sand," Constitutive Law for Engineering Materials: Theory and Application, Edited by C. S. Desai, E. Krempl, P. D. Kiousis, T. Kundu, Elsevier Science Publishing Co. Inc., New York, Vol. 1, 1987, pp. 371 - 379.

Chang, C.S., "Micromechanical Modelling of Constitutive Equation for Granular Material," Micromechanics of Granular Materials, Edited by J. T. Jenkins and M. Satake, Elsevier Science Publishers, Amsterdam, 1988, pp. 271-278.

Chang, C. S., "Micromechanical Approach to Constitutive Modelling for Granular Sand Based on Slip Mechanism," Constitutive Equations for Granular Non-cohesive Soils, Edited by Adel S. Saada and G. Bianchini, A. A. Balkema Publishers, Rotterdam, The Netherlands, 1988, pp. 183-200.

Chang, C. S., "Constitutive Modelling of Granular Materials as Generalized Continua with Non-Linear Kinematic Fields," Powders and Grains, Edited by J. Biarez and R. Gourves, A. A. Balkema Publishers, Rotterdam, The Netherlands, 1989, pp. 311-319.

Chang, C.S., "Micromechanics Modelling of Deformation and Failure for Granular Material," Advances in Micromechanics of Granular Materials, Edited by Shen H. H. et al., Elsevier Science Publishers, Amsterdam, 1992, pp. 251-260.

Chang, C. S., "Microstructure Characterization in Constitutive Modelling of Granular Material," Microstructure Characterization in Constitutive Equations in Metals and Soils, Edited by G.Z. Voyiadjiis, American Society of Mechanical Engineers press, MD-Vol.32, 1992, pp. 55-69.

Chang, C. S., "Dislocation and plasticity of granular materials with frictional contacts," Powders and Grains, Birmingham, June 1993, pp. 105-111.

Chang Y. and Chang, C. S., "Effective Moduli of Random Material with Arbitrary Two-Point Joint Probability," Homogenization and Constitutive Modeling for Heterogeneous Materials, ASME, Applied Mechanics Division Publication Vol. 166, 1993, pp. 15-25. (Edited by Chang, C. S., and J.W. Ju.)

10 Misra, A. and Chang, C. S., "A homogenization Method for Effective Moduli of Randomly Packed Grains," Homogenization and Constitutive Modeling for Heterogeneous Materials, ASME, Applied Mechanics Division Publication Vol. 166, 1993, pp. 63-75. (Edited by Chang, C. S., and J.W. Ju.)

Chang, C. S., “High-Gradient Constitutive Model for Granular Material with Random Packing Structure,” Mechanics of Materials with Discontinuities and Heterogeneities, ASME Applied Mechanics Division Publication, Vol. 201, 1995, pp. 15-27. (Edited by A. Misra and C.S. Chang).

Gao, J., and Chang, C. S., “ Wave Propagation in Granular Material Using High Gradient Theory,” Micromechanics and Constitutive Modeling of Composite Materials, ASME Applied Mechanics Division Publication, Vol. 202, 1996, pp. 35-47. (Edited by H. Zbib and I. Demir).

Chang , C.S. and Zhong, X., “ Damage Modeling for Cemented Particulate Materials,” Mechanics of Deformation and Flow of Particulate Materials, ASCE Publication, 1997, pp. 247-258 . (Edited by Ching S. Chang, Anil Misra, Robert Y. Liang and Marijan Babic).

Chang, C. S. and Tian-Chyuan Chan., “ Contact Law and Stress-Strain Relationship for Granular Materials,” Recent Advances in Mechanics of Geomaterials, UMA Publication, 1997, ISBN 1-890643-00-9, pp. 1-10. (Edited by Anil Misra.)

Chang, C. S., “Fundamentals of Granular Mechanics - Micromechanical Based Stress-strain Relationships,” Introduction to Mechanics of Granular Materials, Editors: M. Oda and K. Iwashita, Balkema Publisher, Rotterdam, 1999, pp. 35-45.

Chang, C. S., “Micromechanics of Granular Materials as Structured Media,” Modeling in Geomechanics, Editors: M. Zaman, G. Gioda and J. R. Booker, John Wiley and Sons, Ltd., Chichester, England, 2000, pp. 179-195.

Suiker, A.S.J., de Borst, R. and Chang, C. S., “Micromechanally Based Higher-order Continuum Model for Granular Materials,” Constitutive Modelling of Granular Materials, Editors: D. Kolymbas, Springer, Berlin, 2000, pp. 249-275.

Chang, C. S., “An Elasto-plastic Model for Granular Material with Microstructural Consideration,” Quasi- Static Deformations of Particulate Materials, Edited by K. Bagi, Publishing Company of BUTE, Budapest, 2003.

Chang C. S. and Hicher P. Y., “Chapter 7 : A Constitutive Model for Lunar Soil,” Lunar Settlements, CRC Press, 2010, Edited by, Haym Benaroya – catalog # 83325)

Daouadji, A., Hicher P.Y., Chang C.S., Jrad, M., and Algali H., “Instability in loose sand: Experimental results and numerical simulations with a microstructural model,” a chapter in the Book Bifurcations, Instabilities and Degradations in Geomaterials (Edit: by: Richard Wan, Mustafa Alsaleh, Joe Labuz), Springer Verlag, Berlin, 2011.

Conference Proceedings

Houston, W. N., Moriwaki, Y., and Chang, C. S., "Down Slope Movement of Lunar Soil and Rock Caused by Meteors," Proceedings of the Fourth Lunar Science Conference, Houston, Texas, 1973, Vol. 4, pp. 374-384.

Alva-Hurtado, J., and Chang, C. S., "Characteristics of Peruvian Earthquakes in Lima Area," The Third Peruvian Civil Engineering Conference, Lima, Peru, 1978, pp. 284-292.

11 Chang, C. S., and Soong, T. T., "A Probabilistic Approach to Consolidation Analysis," The Third International Conference on Application of Statistics and Probability in Soil and Structural Engineering, Sidney, Australia, 1979, pp. 487- 496.

Chang, C. S., "A Simple Boundary Element Approach to the Prediction of the Soil-Track Structure Interaction Problem," The Second International Symposium on Innovative Numerical Analysis in Applied Engineering Science, Montreal, Canada, June 1980, pp. 491-497.

Chang, C. S., and Abas, M. H. B., "Deformation Analysis for Excavations in Clay," Proceedings of the Symposium on Applications of Soil Constitutive Models in Geotechnical Engineering, ASCE, Hollywood, Florida, October 1980, pp. 205-226.

Chang, C. S., "Footing Settlement Resulting from Earthquake Induced Pore Pressures," Proceedings of Sixth National Meeting of the University Council for Earthquake Engineering Research, University of Illinois, Urbana-Champaign, May 1980, p.70.

Chang, C. S., "Boundary Integral Method in Seepage Analysis with a Free Surface," Symposium on Implementation of Computer Procedures and Stress-Strain Law in Geotechnical Engineering, Chicago, August 1981, pp. 421-429.

Chang, C. S., "Residual Pore Pressure and Deformation Behaviour of Soil Samples Under Variable Cyclic Loading," Proceedings of the Internation Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, Vol. 1, St. Louis, Missouri, April 1981, pp. 107-113.

Chang, C. S., "Constitutive Modelling for Sand - A Particulate Mechanics Approach," Proceedings of the International Conference on Constitutive Laws for Engineering Materials -Theory and Application, Tucson, Arizona, January 1983, pp. 175-182.

Chang, C. S., "Microcomputer-Based Software for Geotechnical Engineering Design," Proceedings of the First National Conference on Microcomputers in Civil Engineering, Orlando, Florida, November 1983, pp. 268-271.

Chang, C. S., "Stress Induced Packing Anisotropy for Sand," Proceedings of the Probabilistic Mechanics and Structural Reliability Specialty Conference, ASCE, Berkeley, California, January 1984, pp. 219-223.

Chang, C. S., "Analysis of Earthquake Induced Settlement," Proceedings of the Eighth World Conference on Earthquake Engineering, San Francisco, California, July 1984, Vol. 3, pp. 87-96.

Chang, C. S., "Dilatancy Modeling for Granular Sand in Simple Shear Condition," Proceedings of the Eleventh International Conference on Soil Mechanics and Foundation Engineering, San Francisco, California, August 1985, pp. 419-422.

Chang, C. S., "Application of Boundary Element Method in Transient Flow Problems with Moving Boundaries," Proceedings of the Eighth International Conference on Boundary Element Method in Engineering, Tokyo, Japan, January 1986, pp. 327- 335.

Chang, C. S., Misra, A., and Weeraratne, S. P., "A Microstructural Approach to Constitutive Modelling for Granular Soils," Engineering Mechanics Division, Specialty Conference, ASCE, Buffalo, New York, May 1987, (Engineering Mechanics - 6th Conference Abstracts, ASCE publication, May 1987, p.106).

Shaheen, W. A., Chang, C. S., and Demars, K. R., "Evaluation of Plate Anchor Theories in Sand," Proceedings of the Offshore Technology Conference, OTC-5419, Houston, Texas, April 1987, pp. 521-530.

Chang, C. S., and Biswas, G. C., "Cyclic Densifications and Liquefaction Potential of Soil," Proceedings of the Ninth World Conference on Earthquake Engineering, Tokyo-Kyoto, Japan, August 1988, pp. 283-286.

12 Chang, C. S., "Micro-modelling of Macro-constitutive Behavior for Granular Material," U.S. Japan Seminar on Micromehanics of Granular Materials, Sendai, Japan, October 1987, pp. 115-123.

Chang, C. S., "Elasto-plastic Constitutive Modelling with Microstructural Considerations," Proceedings of the International Conference on Constitutive Equations for Granular Non-Cohesive Soils: Test Results and Predictions, Case Western Reserve University, July 1987, pp. 56-64.

Chang, C. S., and Selig, E. T., "Deformation Behavior of Granular Materials," Soil Mechanics Seminar, Sponsored by Air Force Office of Scientific Research, MIT, Cambridge, Massachusetts, 1987, pp. 5-8.

Chang, C. S., "Deformation Analysis for Granular Material," Engineering Mechanics Division, Specialty Conference, ASCE, Blacksburg, Virginia, May 1988. (Engineering Mechanics - 7th Conference Abstracts, ASCE publication, May 1988, p.18).

Chang, C. S., "Cyclic Stress-Strain Modelling for Granular Soils with Micro-structural Consideration," Engineering Mechanics Division, Specialty Conference, ASCE, Blacksburg, Virginia, May 1988. (Engineering Mechanics - 7th Conference Abstracts, ASCE publication, May 1988, p.201).

Chang, C. S. and Misra, A., "Stress-Strain Behavior of Sands - A Microstructural Approach," Proceedings of the Fourth International Symposium on Interaction of Non-Nuclear Munition with Structures, Panama City Beach, Florida, April 1989, pp. 354-459.

Chang, C. S. and Misra, A., "Fabric and Effective Moduli of Frictional Granulates," Proceedings of the Twelfth Canadian Congress of Applied Mechanics, Ottawa, Canada, May 1989, pp. 532-533.

Chang, C. S., "Deformation of Granular Materials," Workshop on the Packing and Mechanics of Aggregates of Spheres, Mathematical Sciences Institute, Cornell University, N.Y., June 1989, pp. 22-24.

Liao, C. L., and Chang, C. S., "Numerical Modelling for Large Deformation of Aggregates of Particles with Meta-Stable Structures," Proceedings of the Seventh International Conference on Mathematical and Computer Modelling, Chicago, August 1989, pp. 471-477.

Liao, C. L., and Chang, C. S., "A Micro-Structural Finite Element Model for Granular Solids," First U.S. Conference on Discrete Element Methods, Golden, Colorado, October 1989, pp. 382-394.

Chang, C. S., "Constitutive Modelling of Granular Materials as Generalized Continua," Proceedings of the International Conference on Micromechanics of Granular Media, Clermont- Ferrand, France, September 1989, pp. 133-141.

Chang, C. S., and Misra, A., "Stress-Strain Modeling of Heterogeneous Granular Solid Based on Micromechanics," Proceedings of the Third International Conference on Constitutive Law for Engineering Materials: Recent Advances and Industrial and Infrastructure Applications, Tucson, Arizona, Jan. 1991, pp.501-504.

Misra, A., and Chang, C. S., "Micro-mechanism of Induced Anisotropy in the Behavior of Granular Material," Proceedings of the Third International Conference on Constitutive Law for Engineering Materials: Recent Advances and Industrial and Infrastructure Applications, Tucson, Arizona, Jan. 1991, pp.531-534.

Misra, A., and Chang, C. S., "Mechanical Properties of Cemented Sands Based on Inter-particle Contact Behavior," Second International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, March, 1991, Vol. 1, pp.93-96.

Chang, C. S., and Misra, A., "Influence of Finite Deformations in the Stress- Strain Modeling of Granular Media," ASCE Engineering Mechanics Specialty Conference Mechanics Computing in 1990's and Beyond, Columbus, Ohio, May, 1991, Vol.2, pp.1164-1168.

13 Misra, A., and Chang, C. S., "Constitutive Relations for Granular Solids Accounting for the Heterogeneous Deformation Field," ASCE Engineering Mechanics Specialty Conference Mechanics Computing in 1990's and Beyond, Columbus, Ohio, May, 1991, Vol.2, pp.1209-1213.

Chou N. C., Chao, S. J., Chang, C. S., and Ni, J., "FEM Analysis of Staged Construction for a Reinforced Earth Wall.," Proceedings of Geotechnical Congress, Bolder, Colorado, June, 1991, Geotechnical Special Publication No. 27, Vol.II, pp.1198-1209.

Chang, C. S., "Micromechanics modelling for deformation and failure of granular material," Micromechanics of Granular Material, US-Japan seminar, Potsdam, New york, 1991.

Chang, C. S., "A statistical-Micromechanics Model for Particulate Material," Proceedings of Army Symposium on Solid Mechanics, Synergism of Mechanics, Mathematics and Materials, Plymouth, Massachusetts, Nov. 1991.

Chang, C. S., "Constitutive Modelling for the Granular Material under Finite Strain with Particle Sliding and Fabric Changes," Symposium on Particulate Mechanics, Kirtland AFB, Albuquerque, New Mexico, 1992, pp. 12-15.

Chang, C.S., “Micromechanics of Granular Media,” NSF/CNRS US-France Workshop on Recent Advances in Geomechanical, Geotechnical, and Geo-Environmental Engineering in Rueil Malmaison, France, June 1-3, 1992.

Lee X., and Chang, C. S., "Constitutive Modelling for Material with Perfect Disordered Heterogeneity," ASCE Engineering Mechanics Specialty Conference, Texas A & M University, Texas, May, 1992, pp.445-448.

Chang, C. S., "Probabilistic Micromechanics in Constitutive Modeling of Granular materials," ASCE Engineering Mechanics Specialty Conference, Texas A & M University, Texas, May, 1992, pp.437-440.

Chang, C. S., "Microstructure Characterization in Constitutive Modelling of Granular Material," Symposium on Microstructure Characterization in Constitutive Equations in Metals and Soils, ASME Applied Mechanics and Materials Conference, Tempe, Arizona, April, 1992, pp. 55-69.

Chang, C. S. and Acheampong, A., "Accuracy and Stability for Static Analysis Using Dynamic Formulation in Discrete Element Methods," Proceedings of the Second International Conference on Discrete Element Method, March, 1993, pp. 379-389.

Chang Y. and Chang C. S., "Effective Moduli of Random Material with Arbitrary Two-Point Joint Probability," Joint ASCE/ASME/SES Conference, June, 1993, pp. 346.

Chang, C. S., "Micromechanical Modeling for Deformation of Randomly Packed Granules," Joint ASCE/ASME/SES Conference, June, 1993, pp. 497.

Chang, C. S., "Dislocation and plasticity of granular materials with frictional contacts," Powders and Grains, Birmingham, June 1993, pp. 105-111.

Chang, C. S., "Micromechanical Model for Randomly Packed Granules," Probabilistic Approach in Material Modeling, Cachan, France, Nov., 1993.

Chang, C. S. and Kabir, G. M., "Mechanism for Brittle and Ductile Behavior of Cemented Sands," Proceedings of the Thirteenth International Conference of Soil Mechanics and Foundation Engineering, New Delhi, India, 1994.

Chang, C.S., "Inter-particle Properties and Elastic Moduli for Sand," Mechanics of Granular Material, Published by International Society of Soil Mechanics and Foundation Engineering, 1994, pp. 7-14.

14 Chang, C. S., "Micromechanical Modelling for Heterogeneous Granular Materials," Workshop on Mechanics and Statistical Physics of Particulate Materials, Institute for Mechanics and Materials, University of California at San Diego, La Jolla, California, 1994, pp. 17-18.

Chang, C. S., "Settlement and compressibility for sand under one-dimensional loading condition," Vertical and Horizontal Deformations of Foundations and Embankments, Edited by A. T. Yeung and G. Y. Felio, Vol. 2, ASCE, 1994, pp.1298-1311.

Chang, C. S., and Yang, D. H.,”Micromechanics Modelling for Particulate Composites,” Proceedings of Structures Congress XIII, ASCE Specialty Conference, Boston, Massachusetts, April 3-5, 1995, pp. 1454- 1457.

Achempong, K., and Chang, C. S., “Evaluation of Numerical Integration Methods in Discrete Element Analysis,” Proceedings of the 10th Engineering Mechanics Conference, ASCE Specialty Conference, Boulder, Colorado, May 21-14, 1995, pp. 485-489.

Chang, C. S., “Microstructural Modeling for Granular Material,” Proceedings of the 10th Engineering Mechanics Conference, ASCE Specialty Conference, Boulder, Colorado, May 21-14, 1995, pp. 1304-1308.

Ma, L., and Chang, C. S., “Homogenization Techniques for Modelling of Randomly Packed Granules,” Proceedings of the 10th Engineering Mechanics Conference, ASCE Specialty Conference, May 21-14, 1995, pp. 313-317.

Chang, C. S., “High-Gradient Constitutive Model for Granular Material with Random Packing Structure,” ASME Applied Mechanics and Materials Conference, Los Angeles, California, June 28-30, 1995, p. 208.

Gao, J., and Chang, C. S., “ Wave Propagation in Granular Material Using High Gradient Theory,” ASME Applied Mechanics and Materials Conference, Los Angeles, California, June 28-30, 1995, p. 295.

Chang, C. S.,“Effect of Internal Length on the Vibration of Granular Solids,” Proceedings of The Eleventh ASCE Engineering Mechanics Specialty Conference, Fort Lauderdale, Florida, May 1996, p.873-877.

Chang, C. S.,“ Micromechanical Modeling for Granular Materials,” Proceedings of The Eleventh ASCE Engineering Mechanics Specialty Conference, Fort Lauderdale, Florida, May 1996, p.551-554.

Chang, C. S., “Microstructure and Physical Properties of Granular Material,” Workshop on Sediment Geoacoustical and Geotechnical Constitutive Modeling, University of Rhode Island, Nov., 1995.

Chang, C. S., “Recent Developments in Granular Mechanics,” Proceedings of The First International Conference on Analysis of Discontinuous Deformation, National Central University, Taiwan, Rep. of China, 1995, p.298-311.

Chang, C. S., "Moduli of Granular Materials with Visco-elastic Binders," ASME Applied Mechanics Conference, Johns Hopkins, Baltimore, Maryland, 1996, p. 275.

Chang, C. S. and Emeriault F., "Inter-particle Forces and Displacement in Granular Materials," ASME Applied Mechanics Conference, Johns Hopkins, Baltimore, Maryland, 1996, p. 269.

Chang, C. S. and Zhong, X., “Damage and Fatigue Modeling for Bonded Particulate Materials,” Proceeding of McNU’97 Conference, Northwestern University, 1997, p. 660.

Chang, C. S. and Chan, T. C., “Contact Law and Stress-Strain Relationship for Granular Materials,” International Mechanical Engineering Congress, Atlanta, Georgia, 1996, p 1.

15 Chang, C. S., “Damage and Fatigue Modeling for Bonded Particulate Materials,” Proceedings of the Third International Conferences on Powders and Grains, Duke University, 1997, pp. 271-274.

Emeriault, F. and Chang, C. S., “Fabric and Contact Parameters for Sand from Wave Velocity Measurements,” Proceedings of the Third International Conferences on Powders and Grains, Duke University, 1997, pp. 235- 238.

Chang, C. S., “Modeling of Granular Materials with Intrinsic Length Scale,” Proceedings of the Second European Mechanics of Materials Conference, Magdeburg-Germany, 23-26 February, 1998, pp. 65-73.

Chang, C. S., “Numerical and Analytical Modeling for Granulates,” Proceedings of the Ninth International Conference on Computer Methods and Advances in Geomechanics, Wuhan, China, 2-7 Nov. 1997, Balkema, Rotterdam. pp 105-114

Zhong X. and Chang, C. S., “Numerical Modeling for Cementitious Granular Materials,” Proceedings of the Ninth International Conference on Computer Methods and Advances in Geomechanics, Wuhan, China, 2-7 Nov. 1997, Balkema, Rotterdam. pp. 975 - 980.

Chang, C. S. and Zhong X., “Modeling of Fracture Damage in Concrete Pavement Materials,” Proceedings of the 12th Engineering Mechanics Conference, La Jolla, California, May 17-20, 1998, pp. 1078-1081.

Misra, N., Chang, C. S. and Misra, A., “Viscous Behavior of Granular Materials,” Proceedings of the 12th Engineering Mechanics Conference, ASCE Publication, La Jolla, California, May 17-20, 1998, pp. 1347-1350.

Chang, C. S., “Effective Properties for Random Materials,” Proceedings of the 12th Engineering Mechanics Conference, ASCE Publication, La Jolla, California, May 17-20, 1998, pp. 1493-1496.

Chao S. J., and Chang, C. S., “Method of Distributive Tensor for Effective Moduli of Heterogeneous Materials,” Proceedings of the 13th Engineering Mechanics Conference, ASCE Publication, Baltimore, Maryland, June 13-16, 1999, pp. 215-222.

Zhong, X, Chang C. S., and Shashidhar, N., “Crack Growth Analysis for the Fatigue Behavior of Asphalt Concrete,” Proceedings of the 13th Engineering Mechanics Conference, ASCE Publication, Baltimore, Maryland, June 13-16, 1999, pp. 294-300.

Vaidya, S., and Chang C. S., “Simulation of Fracture Behavior of Bonded Granulates Using A Static DEM Formulation,” Proceedings of the 13th Engineering Mechanics Conference, ASCE Publication, Baltimore, Maryland, June 13-16, 1999, pp. 307-413.

Zhong, X,, Shashidhar, N. and Chang C. S, “Dem Stability for Static Analysis in Aggregate Packing,” Proceedings of the 14th Engineering Mechanics Conference, ASCE Publication, Austin, Texas, May 22-24, 2000.

Chang C. S, “Micromechanical Modeling for Cement or Asphalt Concrete,” Proceedings of the 14th Engineering Mechanics Conference, ASCE Publication, Austin, Texas, May 22-24, 2000.

Chang C. S, “Fracture analysis of bonded granular materials,” Proceedings of the 14th Engineering Mechanics Conference, ASCE Publication, Austin, Texas, May 22-24, 2000.

Chang, C. S., Wang T.K., Sluys, B. and van Mier, J.G.M., “Fracture Modeling with a Microstructural Mechanics Approach,” Fourth International Conference on Fracture Mechanics of Concrete and Concrete Structures, Cachan, May 28 – June 2, 2001.

16 Chang, C. S., Askes, H., and Sluys, L. J., “A higher-order continuum theory for granular media with application to wave propagation and fracture,” Mechanics of Materials Conference, June 26 – 29, SanDiego, 2001, p. 188.

Shi, Q, T. Matsoshima, and Chang, C. S., “First Strain Gradient Elasto-Plastic Model for Strain Localization Analysis,” Mechanics of Materials Conference, June 26 – 29, SanDiego, 2001, p. 190.

Wang, T.K., Chang, C. S., Van Mier, J.G.M., Sluys, L.J., and Bittencourt, T.N., “Fracture Modeling of Concrete Using Two Different Microstructural Mechanics Approaches,” Mechanics of Materials Conference, June 26 – 29, SanDiego, 2001, p. 186.

Suiker, A., and Chang, C. S., “Meso-scale Continuum Model and Discrete Model for Granular Materials,” 15th ASCE Engineering Mechanics Conference Columbia University, New York, June 2-5th , 2002, p. 60.

Chang, C. S., “A First-gradient Stress-strain Model for Granular Materials using Microstructural Approach,” 15th ASCE Engineering Mechanics Conference, Columbia University, New York, June 2-5th , 2002, p. 74.

Chang, C. S., “An Elasto-plastic Model for Granular Material with Microstructural Consideration,” QuaDPM03 Workshop, Budapest, Hungary, Aug. 25-28, 2003

Chang, C. S., “Strain-softening Analysis for Soil Modeled as a Generalized Continuum,” 5th EUROMECH Solid Mechanics Conference (ESMC), Thessaloniki, Greece, 2003

Chang, C. S., “An Elasto-plastic Model for Granular Material with Microstructural Consideration”, 16th ASCE Engineering Mechanics Conference, Mini-Symposium: Tribute to Kirk C. Valanis (EM2003), University of Washington, Seattle, Washington, July 16-18, 2003.

Shi, Q., and Chang, C. S., “Numerical Analyses for the Effect of Heterogeneity on Shear Band Formation", 16th ASCE Engineering Mechanics Conference (EM2003), University of Washington, Seattle, Washington, July 16-18, 2003.

Chang, C. S., “Stress-strain Analyses for Granular Material with Consideration of inter-particle properties”, 17th ASCE Engineering Mechanics Conference, University of Delaware, Delaware, Newark, DE, June 13-16, 2004.

Hicher, P. Y. and Chang, C. S., “A Microstructural Model for Partially Saturated Granular Materials”, Proceedings of McMat 2005, 2005 Joint ASME/ASCE/SES Conference on Mechanics and Materials, June 1-3, 2005 Baton Rouge, Louisiana.

Kuhn, M. R. and Chang, C. S., “Continuum models of discrete particle systems with particle shape consideration,” Proceedings of McMat 2005, 2005 Joint ASME/ASCE/SES Conference on Mechanics and Materials, June 1-3, 2005 Baton Rouge, Louisiana.

Chang, C. S. and Hicher, P. Y., “A Microstructural Plasticity Model for Clay,” Proceedings of McMat 2005, 2005 Joint ASME/ASCE/SES Conference on Mechanics and Materials, June 1-3, 2005 Baton Rouge, Louisiana.

Suiker, A., Chang, C. S., and de Borst, R., “Enhanced continua and discrete lattices for modelling granular assemblies,” Proceedings of McMat 2005, 2005 Joint ASME/ASCE/SES Conference on Mechanics and Materials, June 1-3, 2005 Baton Rouge, Louisiana.

Chang, C. S. and Hicher, P. Y., “Modelling Issues for Lunar Soil,” The 2nd NASA/ARO/ASCE Workshop on Granular Materials in Lunar and Martian Exploration International Conference on Engineering, Construction and Operations in Challenging Environments (Earth & Space 2006)

17 Chang, C. S. , Hicher, P. Y., and Chao, S. J., “A Unified Microstructural Approach for Modeling Soils,” Proceedings of 15th U.S. National Congress on Theoretical and Applied Mechanics, June 25-30, 2006, Bolder, Colorado.

Hicher, P. Y., and Chang, C. S., “An Elastoplastic Model for Unsaturated Granular Soils with Microstructural Consideration,” Proceedings of 15th U.S. National Congress on Theoretical and Applied Mechanics, June 25- 30, 2006, Bolder, Colorado.

Takashi Matsushima & C.-S. Chang, “An elasto-plastic constitutive model of granular materials based on contact force distribution,” International Symposium on Geomechanics and Geotechnics of Particulate Media, 12 - 14 September 2006, Ube, Yamaguchi, JAPAN

Chang, C. S., and Hicher, P. Y., “A Microstructural Stress-strain Model for Instability in Granular Soil,” Workshop on Instability Across the Scales, July 1-5, 2007, Delft, Netherlands.

Hicher P.Y. & Chang C. S., "A Constitutive Model for lunar soil”, Earth and Space 2008, Long Beach, California, 3-5 March 2008.

Hicher P.Y. & Chang C. S., “Analysis of Instability in Granular Materials by means of a Micro-structural Constitutive Model”, Second Euro Mediterranean Symposium on Advances in Geomaterials and Structures, AGS’08, Hammamet, Tunisia, 5-7 May 2008.

Hicher P.Y. & Chang C. S., “A Microstructural Model for Cohesive-frictional Granular Materials”, Inaugural International Conference of the Engineering Mechanics Institute, EM’08, Minneapolis, USA, 18-21 May 2008.

Hicher P.Y. & Chang C. S., “Investigating Instability Conditions in Granular Materials with Different Initial Densities by means of a Micro-structural Constitutive Model”, 8th Int. Workshop on Bifurcation and Degradation in Geomaterials, Lake Louise, Canada, 28-31 May 2008.

Hicher P.Y. & Chang C. S., “A Microstructural Model for Cemented Sand”, the 12th Int. Conf. of the International Association for Computer Methods and Advances in Geomechanics, Goa, India, 1-6 Oct. 2008.

Chang C. S., Yin, Z. Y., and Hicher P.Y. “A strain-rate based micromechanical model for soft soils,” Conference of Engineering Mechanics, EM’09, Virginia, USA, June 18-21 2009.

Chang C. S. Hicher P.Y., “Some Issues in Micromechanical Modelling of Granular Materials,”, Powders and Grains 2009, Proceedings of the 6th International Conference on Micromechanics of Granular Media, Golden, Colorado, 13-17, July 2009, pp. 1077-1080.

Hicher P.Y. & Chang C. S., “Instability in Granular Materials with Internal Erosion”, Powders and Grains 2009, Proceedings of the 6th International Conference on Micromechanics of Granular Media, Golden, Colorado, 13-17, July 2009, pp. 153-157.

Kuhn M. R. & Chang C. S., “Measurement of Micropolar Effects in Granular Materials,” Powders and Grains 2009, Proceedings of the 6th International Conference on Micromechanics of Granular Media, Golden, Colorado, 13-17, July 2009, pp. 1093-1095.

Chang C.S. & Chao S.J., “Instability of Granular Material: From Micro to Macro”, 2010 Engineering Mechanics Institute Conference, University of Southern California, 8-11, August 2010, pp. 66.

Yin Z.Y., Chang C.S., Hicher P.Y., “A Microstructural Approach for Modeling the Mechanical Behavior of Structured Clays”, Proceedings of the Geoshanghai Conference 2010, Shanghai, China, 3-5, June 2010.

18 Chang, C. S., “A stress-strain modeling approach for soils: from micro to macro,” Proceedings of International Symposium on Geomechanics and Geotechnics, Shanhai, China, Oct 10-12, 2010, CRC Press/Balkema, Taylor and Francis Group.

Chang, C.S. and Meidani, M., "Stress-Strain Modeling for Silty-Sand." Proceedings of Engineering Mechanics Institute Conference (EMI 2011), Northeastern University, Boston, June 2-4, 2011.

Chang, C.S. and Meidani, M., "Deformation and failure for soils under erosion" CMMI, NSF Engineering Research and Innovation Conference, Atlanta, Georgia, January 4-7 , 2011.

Chang, C.S. and Meidani, M., " Modeling the behavior of non-ideal bimodal packings: sand-silt mixtures." Proceedings of Engineering Mechanics Institute Conference and ASCE Joint Specialty Conference on Probabilistic Mechanics & Structural Reliability, University of Nortre Dame, Indiana, June 17- 20, 2012.

Chang, C.S. and Meidani, M., "Deformation and failure for soils under erosion" CMMI, NSF Engineering Research and Innovation Conference, Boston, Massachusetts, July 9- 11, 2012.

Chang, C.S., " Micromechanical Analysis for Instability of Soil." Engineering Mechanics Institute Conference, Northwestern University, Evanston, August 4 - 7, 2013.

Technical Reports

Quigley, D. W., Duncan, J. M., Caronna, S., Mouroux, P. J., and Chang, C. S., "Three Dimensional Finite Element Analysis of New Melones Dam," Geotechnical Engineering Report, No. UCB/GT/87-03, Dept. of Civil Engineering, University of California, Berkeley, 1976.

Chang, C. S., and Duncan, J. M., "Analysis of Consolidation of Earth and Rockfill Dams," Soil and Pavement Laboratory Report No. S-77-4, U. S. Army Corps of Engineers Waterways Experiment Station, September 1977.

Chang, C. S., and Duncan, J. M., "EXCAV: A Computer Program for Analysis of Stresses and Movement in Excavations," Geotechnical Engineering Report No. TE77-4, National Science Foundation, August 1977.

Selig, E. T., Chang, C. S., Adegoke, C. W., and Alva- Hurtado, J. E., "A Theory for Track Maintenance Life Prediction," U. S. Dept. of Transportation Report No. DOT-RSPA-DPB-50-79-22, 1979.

Duncan, J. M., D'Orazio, T., Chang, C. S., Wang, K. S., and Lamiq, L. I., "CON2D: A Finite Element Computer Program for Analysis of Consolidation," Geotechnical Engineering Report No. UCB/GT/81-01, U. S. Army Corps of Engineers Waterways Experiment Station, March 1981.

Chang, C. S., "Deformation of Sands under Cyclic Loading - A Micro-structural Approach," Air Force of Scientific Research Report No. AFOSR-TR-88-0982, 1988, National Technical Information Service, U. S. Department of Commerce.

Chang, C. S., "Constitutive Modelling for Granular Material under Finite Strains with Particle slidings and Fabric Changes," Defense Technical Information Center (DTIC), Reference No. ADA248187, 1992, National Technical Information Service, U. S. Department of Commerce.