摘要
本文通过理论分析及算例检验证明:采用刚性有限元进行弹塑性分析的计算结果与网格剖分形式相关。刚性有限元的这一缺点,可通过加密网格。
Through theoretical analysis and numerical examples,it's testefied that the result of elasto-plastic analysis with rigid finite element (RFEM) method is related to the mesh discretization.This drawback of RFEM can be ameliorated by mesh refinement,using irregular elements and discretizing the mesh along possible yielding direction.
关键词
弹塑性分析
应力
刚性
有限元
应变
rigid finite element,elasto-plastic analysis,mesh,stress