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Application of composite materials to impact-insensitive munitionsAn approach is outlined for developing bullet-impact-insensitive munitions based on composite materials that provide rapid venting of the rocket-motor case. Impact experiments are conducted with test specimens of hybrid laminates of graphite/epoxy and epoxy reinforcing with woven glass fibers. The dynamic strain response and initial impact force are measured with strain gauges, and perforation damage is examined in the plates. The results show that impact damage can be designed by means of parametric variations of the fiber, matrix, and ply orientations. It is suggested that rocket-motor cases can be designed with composite materials to provide rapid venting during the failure mode. The experimental ballistic testing performed provides data that can be used comparatively with analytical data on composite materials.
Document ID
19930027462
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Neradka, Vincent F.
(NASA Lewis Research Center Cleveland, OH, United States)
Chang, Yale
(Johns Hopkins Univ. Laurel, MD, United States)
Grady, Joseph E.
(NASA Lewis Research Center Cleveland, OH, United States)
Trowbridge, Daniel A.
(Johns Hopkins Univ. Laurel, MD, United States)
Date Acquired
August 15, 2013
Publication Date
September 1, 1992
Publication Information
Publication: Johns Hopkins APL Technical Digest
Volume: 13
Issue: 3
ISSN: 0270-5214
Subject Category
Composite Materials
Accession Number
93A11459
Funding Number(s)
CONTRACT_GRANT: N00039-89-C-0001
Distribution Limits
Public
Copyright
Other

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