Effects of long duration exposure to simulated space environment on nonmetallic materials propertiesNonmetallic materials specimens from the Viking program were tested in situ invacuo after continuous thermal vacuum exposure from 1971/1972 to the present. Eleven tests were done on appropriate specimens of 30 materials; however, no single material received all the tests. Some specimens also were exposed to 1 or 2.5 MeV electrons at differing fluences before testing. Baseline exposure data is reported for graphite/epoxy specimens that were exposed to vacuum since 1974. These materials were transferred to the thermal vacuum storage facility for future in situ testing and irradiation. Thin G/E specimens were tensile tested after thermal-vacuum cycling exposure. Photomicrographic examinations and SEM analyses were done on the failed specimens.
Document ID
19830022218
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Peacock, C. L., Jr. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Whitaker, A. F. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 11, 2013
Publication Date
March 1, 1983
Publication Information
Publication: AGARD Environ. Effects on Mater. for Space Appl.