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For Internal Use Only ENGINEERING LABORATORY MONTHLY PROGRESS REPORT FOR PERKJD DECEMBER 1, -1967 THROUGH DECEMBER 31, 1967 FOR INTERNAL USE-. ONLY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MSFC - Form 1262 (Rev October 19-67) PROPULSION AND VEHICLE ENGINEERING LABORATORY MONTHLY PROGRESS REPORT (December 1, 1967 Through December 31, 1967) Materials Division Structures Division Vehicle Systems Division Advanced Studies Office Propulsion Division GEORGE C. MARSHALL SPACE FLIGHT CENTER TABLE OF CONTENTS Page 1. MATERIALS DIVISION .............................. 1 Saturn V ..................................... 1 I . S-IC Stage ................................ 1 A . Evaluation of Commercial Adhesives ........... 1 1 . Polyurethane Adhesives ................ 1 a . Aging Studies .................... 1 b . Additive and Primer Studies .......... 2 2. Silicone Adhesives .................... 2 B . Development and Evaluation of Potting Compounds and Conformal Coatings ................... 2 1. Development of Epoxys iloxane Embedment Materials .......................... 2 2 . Development of Conformal Coating Materials . 3 3 . Ceramic Potting Compounds ............. 4 C . Investigation of Spring Failure in the S-IC Stage LOX Prevalve .......................... 4 D . Stress Corrosion Studies of 17-7 PH Actuator Springs .............................. 4 I1 . Contract Research ........................... 4 A . Polymer Research. Development. and Testing .... 4 B . Development of Cryogenic and High Temperature Insulation Material ....................... 4 C . Analytical Methods Development .............. 5 D . Assessment and Evaluation of Blast Hazards ..... 5 E . Nondestructive Testing Techniques ............ 5 I11 . S-I1 Stage ................................. 5 A . Investigation of Failure of S-I1 Stage Interstage Fasteners ............................ 5 B . Evaluation of Foams for Applicability as S-I1 Stage Liquid Hydrogen Tank Insulation .......... 5 C . Inspection of the S-11-F /D Liquid Hydrogen Tank ... 6 D. Investigation of Cracking of 2014-T651 in S-I1 Stage Components .................... 6 E . Evaluation of Bolts for Use in the S-I1 Stage Thrust Stage Attachment ................... 6 F . Investigation of Repair Used on the S-I1 Stage Thor Test Tank ......................... 7 G . Developmental Welding .................... 7 H. Development of Standard Nondestructive Techniques for Inspection of Inert Gas Welds in the S-I1 Stage . 7 TABLE OF CONTENTS (Continued) Page I . Investigation of Nondestructive Techniques for Composite Materials .................. J . Investigation of Dye Penetrants for Use in Inspection of S-I1 Stage Hardware .......... K . S-I1 Stage. Project Management. Materials ..... 1. Pulsed Arc MIG Welding (PAMIG) ......... 2 . Liquid Hydrogen Tank Stress Relief Areas ... 3 . Spray Foam Insulation ................ IV . S-IVB Stage .............................. A . Study of Materials Problems Attendant to the S-IVB Workshop Program ................. 1. Study of Flammability of Materials ........ 2 . Study of the Outgassing Characteristics of Orbital Workshop Materials ........... B . S-IVB Stage. Project Management. Materials .... 1. Stress Corrosionof Belleville Springs ...... 2. Stress Corrosion of Thrust Vector Control System Parts ...................... 3 . Evaluation of MD-19 Thermal Control Coating . 4. Penetration Sealing Devices ............. 5 . Thermal Curtain Materials ............. 6 . Quick Opening Hatch Material ........... V . F- 1 Engine ............................... F- 1 Engine. Project Management. Materials .... VI . J-2Engine ............................... J-2 Engine. Project Management. Materials .... VII . Instrument Unit ............................ Study of Possible Gas Evolution in the Environmental Control System .............. VIII . Apollo Telescope Mount (ATM) .................. A . Investigation of Contamination and Contamination Sources ............................. B . Evaluation of Direct Current Motors for Use onATM ............................. C . InvestigationofATMBearingLubrication ...... D . Investigation of Thermal Control Materials forATM ............................. TABLE OF CONTENTS (Continued) Page IX . Nuclear Vehicle Technology ..................... 18 A. Investigation of Propellant Heating ............ 18 B . RIFT Tank Tests ........................ 19 C . Activation Analyses ...................... 19 Advanced Research and Technology ................... 20 I . Contract Research ........................... 20 A. Polymer Development and Characterization ...... 20 B . Adhesive Development .................... 20 C . Developmental Welding .................... 20 D. Thermal Control Coatings .................. 20 E . Physical and Mechanical Metallurgy ........... 20 F . Composite Material Development and Testing ..... 20 G . Lubricants and Lubricity ................... 20 H. CorrosioninAluminumandSteel ............. 20 I . Explosion Hazards and Sensitivity of Fuels ...... 21 J . Synergistic Effects of Nuclear Radiation. Vacuum. and Temperature on Materials ........ 21 K . Instrument Development ................... 21 I1 . General--I n-House ........................... 21 A . Development of High Temperature Resistant Polymers ............................. 21 B . Development and Characterization of Phospho- nitrilic Polymers ....................... 22 C . Development of Fluorinated Adhesives .......... 23 D. Development of Sealant Materials ............. 24 E . Development and Evaluation of Metallic Composites ............................ 24 F . Investigation of Stress Corrosion Characteristics of Various Alloys ....................... 25 G . Investigation of Stress Corrosion Induced Property Changes in Metals ................. 26 H. Analysis of Retro Rocket Exhaust ............. 27 I . Development and Evaluation of Materials for Electrical Contacts in Vacuum ............ 27 J . Development of Low Density Ceramic Foam ...... 28 K . Evaluation of Alloys ...................... 29 L . Developmental Welding .................... 29 M . Investigation of Electroplating Procedures ....... 30 N. Documentation Review ..................... 30 0 . Literaturesurvey ....................... 31 TABLE OF CONTENTS (Continued) Page Monthly Production Report ........................ 32 I . Radiography ............................... 32 I1 . Photography ............................... 32 I11 . Metallurgical and Metallographic Testing and Evaluation. 32 IV . SpectrographicAnalyses ....................... 33 V . Infrared Analyses ........................... 33 VI . Chemical Analyses ........................... 33 VII . Rubber and Plastics .......................... 34 VIII . Electroplating and Surface Treatment .............. 34 IX . Development Shop Production ................... 34 A . Manhours. Direct Labor ................... 34 B . Manhours . Nonroutine .................... 34 1. Saturn V Sled Test Module ............... 34 2 . Models of ATM Experiment Package ........ 34 3 . X-ray Astronomy Assembly Modification ..... 34 4 . GOX Impact Compression Tester .......... 34 5 . Flange Assembly NGTM ................ 34 6 . Bearing Test Assembly ................. 34 7 . ATM Mock-up Components .............. 35 8 . Water Cooling Manifold ................. 35 X. Miscellaneous .............................. 35 XI . Publications ............................... 35 2 . STRUCTURESDIVISION ............................. 37 Saturn IB ....................................... 37 S-IVB Stage ................................... 37 Control Relay Assembly ....................... 37 Saturn V .................................... .. 37 I . S-I1 Stage ................................. 37 A . Interstage Recirculation and 207 Container Battery Environment ..................... 37 B . Acoustic Testing of Forward Skirt ............ 38 C . S-I1 Weld Land Tests ..................... 38 D . S-I1 Lightweight Structural Test Program ....... 38 1. V7-21 ("A" Structure) ................. 38 2 . V7-22 (I1B" Structure) ................. 39 3 . V7-23 ("C" Structure) ................. 39 11 . S-IVB Stage ................................ 39 Acoustic Testing ........................ 39 I11 . Saturn V System ............................ 39 A . AS-502 Pull Test ........................ 39 B . Weld Evaluation Program .................. 40 TABLE OF CONTENTS (Continued) Page Apollo Application Program ........................... I . Apollo Telescope Mount ....................... A . Rack ................................ B . ATM Rack and ATM Shear Webs .............. I1 . Multiple Docking Adapter ...................... MDA Docking Ports ...................... I11 . Meteoroid Protection ......................... IV . MSFC Flight Experiment # 8 .................... 3 . VEHICLE SYSTEMS DIVISION ......................... SaturnIB ....................................... I . S-IVB Stage ............................... Pneumatic Consoles ...................... I1. General .................................. A . Composite Mechanical Schematics ............ B . Hazardous Gas Analyzer (HGA)............... C . Weight Status Reports ..................... D . Engineering Criteria and Specifications ......... SaturnV ........................................ I . S-IC Stage ................................ A . Propellant Dispersion System (PDS) ........... B . S-IC Hydraulic Supply and Checkout Unit (HSCU) ... C . Ground Hydraulic Accumulator Bank (GHAB) ..... D . Pneumatic Consoles ...................... E . Umbilicals ............................ I1. S-I1 Stage ................................
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