Material Analysis and Tests on Three Samples of Retaining Springs in the Fuse Components of the Antipersonnel Obstacle Breaching System.
ARMY RESEARCH LAB FORT BELVOIR VA
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Fuse tests were conducted on the fuse components of the Antipersonnel Obstacle Breaching System APOBS to evaluate three slightly varied spring designs of the u-shaped stainless steel retaining spring samples. Few failures occurred with the spring samples. With one particular spring design, popping out occurred during the tests whereas, the spring samples of the other two designs did not fail. A material investigation was performed to determine why one spring design would cause occasional failures during the fuse tests. The primary cause of a few spring failures was due to the fact that the failed spring design did not allow full engagement of the spring in the fuse components of the APOBS.
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