Record Details

Pressure Venting Tests of Phenolic Impregnated Carbon Ablator (PICA)
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Author and Affiliation:
Blosser, Max L.(NASA Langley Research Center, Hampton, VA, United States);
Knutson, Jeffrey R.(NASA Langley Research Center, Hampton, VA, United States)
Abstract: A series of tests was devised to investigate the pressure venting behavior of one of the candidate ablators for the Orion capsule heat shield. Three different specimens of phenolic impregnated carbon ablator (PICA) were instrumented with internal pressure taps and subjected to rapid pressure changes from near vacuum to one atmosphere and simulated Orion ascent pressure histories. The specimens vented rapidly to ambient pressure and sustained no detectable damage during testing. Peak pressure differences through the thickness of a 3-inch-thick specimen were less than 1 psi during a simulated ascent pressure history.
Publication Date: Oct 01, 2015
Document ID:
20160000764
(Acquired Jan 14, 2016)
Subject Category: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number: NASA-TM-2015-218965, L-20614, NF1676L-22618
Document Type: Technical Report
Contract/Grant/Task Num: WBS 736466.01.08.07.31
Financial Sponsor: NASA Langley Research Center; Hampton, VA, United States
Description: 15p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ABLATIVE MATERIALS; HEAT SHIELDING; PRESSURE DISTRIBUTION; PRESSURE MEASUREMENT; VENTING; CARBON-PHENOLIC COMPOSITES; INTERNAL PRESSURE; CYLINDRICAL BODIES; SEALING; LOW PRESSURE; FLIGHT CONDITIONS; PERFORMANCE TESTS
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