Extension of service life of rigid transfer lines /SMDC/The results of a life evaluation program on rigid explosive transfer lines, which are used to initiate aircraft emergency crew escape functions, are presented in order to provide quantitative information on rigid explosive transfer lines which can contribute to responsible, conservative, service life determinations. The program involved the development of a test methodology, testing of the three types of transfer lines in use in the U.S., testing of these lines following a repeat of the thermal test conducted in the original qualification, and conducting a degradation investigation. Results from the testing of more than 800 components showed that rigid explosive transfer lines were not affected by age, service, or a repeat of the thermal qualification tests on full-service lines. The explosive degradation limits were approximated and the mechanisms examined. It is concluded that the service lives of rigid explosive transfer lines should be considered for extension in order to provide cost savings and increased system reliability.
Document ID
19830032955
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bement, L. J. (NASA Langley Research Center Hampton, VA, United States)
Kayser, E. G. (U.S. Navy, Naval Surface Weapons Center White Oak, MD, United States)
Schimmel, M. L. (McDonnell Aircraft Co. St. Louis, MO, United States)