一种微分型全量弹塑性有限元算法及其应用

An elastic-plastic finite element method based on deformation theory and its application

推导了一种坐标更新的微分型全量弹塑性有限元算法,用它模拟金属的压缩失稳现象,计算结果同实测值非常接近,并优于增量算法和刚塑性算法的结果。表明这一算法用于模拟金属的压缩失稳现象非常有效。

Based on the deformation theory,a new renew coordination differential form elastic\|plastic finite element method(FEM)algorithm is presented,the unstability in metal compress processes is simulated,it is shows that the simulating results are in good agreement with the experiment.