Advisor

Schneider, Judy

Committee Member

Daniewicz, Steven R.

Committee Member

Patton, Richard

Date of Degree

1-1-2004

Document Type

Graduate Thesis - Open Access

Abstract

Carbon fiber composite cryogenic fuel tanks are very attractive to the aerospace industry. More information is needed on micro-cracking and how different composite formulations perform at cryogenic temperatures. In this study a cryogenic bulge test fixture was developed to rapidly screen small scale composite samples that are easily formulated in the laboratory. The design goal was to develop a simple fixture that induced thermal and mechanical strains in the same fixture. The pressure decay rate of helium gas through the composite sample after cryogenic operation gives a measure of the amount of micro-cracking induced. Uncertainty analysis techniques were employed to determine the resolution of the pressure decay determined from the bulge test.

URI

https://hdl.handle.net/11668/20209

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