Strain Gage Instrumentation for Ammunition Testing.
Technical research rept.,
FRANKFORD ARSENAL PHILADELPHIA PA
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This report deals with a feasibility study on the use of electrical-resistance strain gages for quality assurance testing of ammunition. A special combination of strain gages was selected to measure the quantity on the outer surface of a test barrel. This combination of strain gages was essentially a stress gage which has several advantages over commercially available types. The combined strain signal was proportional to the circumferential stress which was related to the internal ballistic pressure. The results of ballistic firings and hydraulic tests are reported which demonstrate the feasibility of this method for acceptance testing of ammunition.
- Test Facilities, Equipment and Methods