【摘要】 基于单个弹—塑性圆环受阶跃载荷作用的的载荷—位移关系 ,将弹—塑性串接圆环系统等效为弹—塑性质量弹簧系统 ,研究了这一系统受强烈冲击的动力响应 ,重点讨论圆环塑性失效的传播过程 ,并与环系的有限元计算结果和Reid等的高速摄影实验结果进行了比较 ,结果是满意的。更多还原

【Abstract】 Based on the load deformation relationship of an elastic plastic ring subjected to step loading, the elastic plastic ring series system become an equivalent has elastic plastic mass springs system.The response of the mass spring system under intense dynamic loading was studied. Emphasis is focused on the propagation of the plastic failure of the rings. The result from the present theoretical model is compared with numerical solutions by using FEA and experimental data made by Reid and Reddy.The agreement is good.更多还原