Instrumented drop ball tester for percussion primers

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:6244672

Woods, C M; Robinson, M A; Merten, C W; Robbins, V E ^[1]; Begeal, D R ^[2]

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1. EG and G Mound Applied Technologies, Miamisburg, OH (United States)
2. Sandia National Labs., Albuquerque, NM (United States)

The drop ball tester has historically been used for determining the threshold characteristics of percussion primers. Typically, the data obtained from such a tester show a wide variation with significantly large standard deviations. This requires that the acceptance specifications for primers be fairly lax. To determine how much of the data scatter was due to the tester alone, a drop ball tester was instrumented with a force monitoring gage, velocity capabilities, deflection gages, and a pressure time output measuring system. This paper deals with the basic fundamental physics involved with the tester and presents results of improvements to the tester geometry. Threshold test results are presented, correlating all of the variables measured. 8 refs., 10 figs.

• Research Organization: EG and G Mound Applied Technologies, Miamisburg, OH (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-88DP43495
• OSTI ID: 6244672
• Report Number(s): MLM-3702(OP); CONF-9106187--5; ON: DE92002032
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500 -- Engineering-- Materials Testing
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DETONATIONS
EXPLOSIVES
IMPACT SHOCK
IMPACT TESTS
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MECHANICAL TESTS
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