基于XFEM的裂纹扩展分析  

Analysis of Crack Growth Based on XFEM

作　　者：刘长虹[1] 李洪升[1] 彭军 

机构地区：[1]华东理工大学机械与动力工程学院,上海200231 [2]ABAQUS上海办事处,上海200120

出　　处：《上海工程技术大学学报》2010年第3期218-220,共3页Journal of Shanghai University of Engineering Science

基　　金：上海市重点学科建设资助项目(B503);国家"863"计划资助项目(2007AA04Z430)

摘　　要：采用ABAQUS/Standard对生产线中的一个易损件进行了三维有限元分析.根据结构受力状态,将该结构简化成一个平面应力的裂纹扩展模型,并采用目前最新的有限元裂纹扩展技术(XFEM)计算结构的裂纹扩展情况.计算结果表明,有限元计算与实际结构裂纹扩展情况一致.同时,根据计算结果提出了结构改进的设计建议.A three-dimensiond finite element（FE） analysis for one comsumable part was performed by using ABAQUS/Standard.Considering the structural deformation and stress distribution,a plane strain model was established and the structural crack development was calculated based on XFEM technology.The result shows that the crack growth calculated by the FE model can meet well with that of the reality.Finally,improving design suggestions were put forward.

关 键 词：有限元裂纹扩展 有限元法 裂纹扩展 

分 类 号：O346.1[理学—固体力学]