Simulating Wave Propagation in SHPB with Peridynamics

摘要: Split Hopkinson’s pressure bar (SHPB) is commonly used for characterizing materials at high strain rates. In obtaining an admissible stress–strain curve a specific rate, force equilibrium through the specimen required. Due to blunt collision between striker and incidence in SHPB, wave with front usually obtained SHPB test. Unfortunately, can damage prematurely, resulting inconclusive Hence, gradual loading ramp, such as that practiced quasi-static characterizations preferred. order achieve fashion, shaper made of softer material should be placed bar. The selection its dimension thickness, however, not trivial. Numerous trial-and-errors are This study presents simulation propagation based on peridynamics. addition bar, transmission one-dimensional peridynamic also accommodate shaper. it design.