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为了在Hopkinson压杆测试样系统上进行材料的动态断裂韧性测试 ,本文在已有的三点弯曲度试动态应力强度因子计算公式基础上编制了相应的计算程序 ,建立了动态断裂韧性测试系统 ,使得测试工作简单易行 .40Cr材料的试验结果表明 ,本文编制的程序是有效的 ,建立的测试系统能够满足工程应用 .
In order to test the dynamic fracture toughness of materials on the Hopkinson pressure bar test sample system, a corresponding calculation program is compiled based on the existing three-point bending test dynamic stress intensity factor formula, and a dynamic fracture toughness testing system is established. Making the test work simple and easy.40Cr material test results show that the preparation of the program is effective, the establishment of the test system to meet engineering applications.