【摘要】 基于Tuler-Butcher模型提出了一种修正的损伤演化模型。在此基础上,将新的损伤演化方程编入一维Lagrange有限差分动力学程序,对45钢和铝锂合金两种延性金属材料的平板正碰撞层裂实验进行了数值模拟,计算结果与实验结果吻合得较好,验证了本模型的正确性。更多还原

【Abstract】 A modificatin of Tuler-Butcher model including damage influence was presented,which was incorporated into a hydrodynamic one-dimensional finite difference computer code,to simulate the process of spall fracture of 45 steel and Al-Li alloy.The calculated results are in good agreement with experimental data,and shows the correctness of the model.更多还原