Mechanics and Physics of Porous Solids
Florian Osselin
Based on a lecture from O. Coussy and M. Vandamme
Florian Osselin MPPS 1 / 15 Table of contents Contents
1 Introduction
2 Basics of thermodynamics and thermochemistry
3 Basics of Mechanics
4 The saturated porous solid
5 The unsaturated porous solid
6 Confined phase transitions
7 Experimental considerations
Florian Osselin MPPS 2 / 15 Introduction Contents
1 Introduction
2 Basics of thermodynamics and thermochemistry
3 Basics of Mechanics
4 The saturated porous solid
5 The unsaturated porous solid
6 Confined phase transitions
7 Experimental considerations
Florian Osselin MPPS 3 / 15 Introduction Brief history of poromechanics and science of porous solids
Maurice Biot (1905, 1985) Olivier Coussy (1953-2010) Karl von Terzaghi (1883, 1963) First consistent theory of poroelasticity Modern theory for porous media The father of Soil Mechanics
Science of porous solid come from two different areas: oil&gas technologies and civil engineering
Florian Osselin MPPS 4 / 15 Introduction The strange world of porous solids: Capillarity
Florian Osselin MPPS 5 / 15 Introduction The strange world of porous solids: Weathering
Salt weathering in Gozo, Malta G.W. Scherer
Salt wheatering, image Rob Van Hees
Courtesy of Dr. Moon Won Texas Tech University Freeze-thaw scaling of a railroad bridge [Paul Stutzman, NIST] Florian Osselin MPPS 6 / 15 Introduction The strange world of porous solids: shrinking and drying
Fracture patterns created by the drying of the water from the pores of the medium
Florian Osselin MPPS 7 / 15 Introduction The strange world of porous solids: non-intuitive behavior
Benzene contrary to water contracts upon freezing But a concrete sample filled with benzene expands !
Florian Osselin MPPS 8 / 15 Introduction We are surrounded by porous media
Rocks Concrete Wood Foam Bone
Living tissues Porosity and pore modeling ... Tortuosity and connectivity Poroelasticity and effective stress Transport laws in porous media and permeability Surface energy and capillarity ...
Florian Osselin MPPS 9 / 15 Basics of thermodynamics and thermochemistry Contents
1 Introduction
2 Basics of thermodynamics and thermochemistry
3 Basics of Mechanics
4 The saturated porous solid
5 The unsaturated porous solid
6 Confined phase transitions
7 Experimental considerations
Florian Osselin MPPS 10 / 15 Basics of Mechanics Contents
1 Introduction
2 Basics of thermodynamics and thermochemistry
3 Basics of Mechanics
4 The saturated porous solid
5 The unsaturated porous solid
6 Confined phase transitions
7 Experimental considerations
Florian Osselin MPPS 11 / 15 The saturated porous solid Contents
1 Introduction
2 Basics of thermodynamics and thermochemistry
3 Basics of Mechanics
4 The saturated porous solid
5 The unsaturated porous solid
6 Confined phase transitions
7 Experimental considerations
Florian Osselin MPPS 12 / 15 The unsaturated porous solid Contents
1 Introduction
2 Basics of thermodynamics and thermochemistry
3 Basics of Mechanics
4 The saturated porous solid
5 The unsaturated porous solid
6 Confined phase transitions
7 Experimental considerations
Florian Osselin MPPS 13 / 15 Confined phase transitions Contents
1 Introduction
2 Basics of thermodynamics and thermochemistry
3 Basics of Mechanics
4 The saturated porous solid
5 The unsaturated porous solid
6 Confined phase transitions
7 Experimental consi