【摘要】 将自适应有限元与弧长法迭代算法相结合,用于软化材料的弹塑性有限元计算.讨论了程序中软化材料的弹塑性计算、本构积分、弧长法迭代、自适应有限元,得到了自适应有限元与弧长法结合计算软化问题的流程图.算例分析结果验证了本文分析方法的有效性,表明自适应有限元在模拟局部化问题中具有优势.更多还原

【Abstract】 The paper presented a new method to implement the elastoplastic FEM analysis of softening materials by combining the algorithm of adaptive mesh generation with the algorithm of arc-length control procedures. The integration of elastoplasticity, arc-length control procedures and the algorithm of adaptive mesh generation were focused on. The flowchart of combining the algorithm of adaptive mesh generation with the algorithm of arc-length control procedures was offered. The numerical results confirm the efficiency of the present analysis method.更多还原