杆件受压时有限变形幂次强化计算方案

Calculating method of finite deformation exponential hardening of truss subjecting compress load

在测定铅的有限变形应力应变曲线基础上 ,采用幂次强化本构方程进行模拟 ,分别对 2种不同方案进行了有限元计算分析 ,从计算精度和叠代收敛速度两方面考虑 。

On the basis of measuring finite deformation stress strain curve of lead,the exponential hardening constructive equation is used to simulate the compress process.Two different methods are calculated by using finite element method(FEM).From the view point of calculating accuracy and iteration convergence velocity,the optimum parameters of exponential hardening construction equation are obtained,and the reasonable method is presented.