NASA/TM-210252, Hodge, A.J., Mechanical Property Allowables Generated for the Solid Rocket Booster Composite Nose Cap, Materials Processes and Manufacturing Department, Engineering Directorate, NASA Marshall Space Flight Center, AL 35812, May 2000, pp. 100, Format(s): PDF 7722k |
Mechanical property characterization was performed on AS4/3501-6 graphite/epoxy and SC350G syntactic foam for the SRB Composite Nose Cap Shuttle Upgrades Project. Lamina level properties for the graphite/epoxy were determined at room temperature, 240 F, 350 F, 480 F, 600 F, and 350 F after a cycle to 600 F. Grahite/epoxy samples were moisture conditioned prior to testing. The syntactic foam material was tested at room temperature, 350 F, and 480 F. A high-temperature test facility was developed at MSFC. Testing was performed with quartz lamp heaters and high resistance heater strips. The thermal history profile of the nose cap was simulated in order to test materials at various times during launch. A correlation study was performed with Southern Research Institute to confirm the test methodology and validity of test results. A-basis allowables were generated from the results of testing on three lots of material
| Keywords: | composite materials, solid rocket booster, nose cap, elevated temperature testing |
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| Subjects: | Engineering: Structural Mechanics: Structural Tests and Reliability |
| ID Code: | 521 |
| Deposited On: | 30 July 2002 |