Study on the Simulation Test Method for Mechanical Over-loading of Initiator

Abstract In view of the needs mechanical over-load test evaluation second and third generation Initiators in combat environment, numerical simulation combined with experimental verification method is used to study influence material, outer diameter length pulse shaper on over-loading wave. The index parameters tooling different states are obtained. results show that as increases gradually, speed target gradually slowly, which prolongs impact overload time. With increase diameter, acceleration time shortens. When it 44, duration not long. Steel 20mm 30mm shaper. bullet 250m/s, peak can reach 150,000 g, width 200 microseconds, meets requirements environment for penetrating steel plate.