Accession Number:

AD0850512

Title:

Simulated Meteoroid Impact Testing on a Composite Expandable Structure for Spacecraft Airlock Application

Descriptive Note:

Final rept. 1 Dec 1967-29 Aug 1968

Corporate Author:

ARO INC ARNOLD AFS TN

Personal Author(s):

Report Date:

1969-04-01

Pagination or Media Count:

29.0

Abstract:

Simulated meteoroid impact tests were conducted on an expandable, elastic recovery, four-layer composite material proposed for flight testing in a dummy airlock configuration aboard a NASA S-IVB Orbital Workshop. The tests were conducted to obtain the ballistic limit of the structure and to determine its behavior during simulated meteoroid perforation while enclosing a typical oxygen-rich spacecraft atmosphere. Spherical aluminum projectiles at a velocity of about 20,000 ftsec were used on the tests, and perforation occurred for projectile masses greater than about 0.004 gm. The resistance of the structure to perforation was not affected by the presence of oxygen at 5 psia behind the test sample except under certain conditions in which the structure was compressed by the gas pressure together with the clamping arrangement used to fasten the sample to the test tank. The combustion front which exists inside a vessel containing a high concentration of oxygen when the vessel is perforated by a high-speed projectile was photographically recorded.

Subject Categories:

  • Laminates and Composite Materials
  • Manned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE