Finite element simulation of ductile crack propagation in metal materials

摘要：

Based on von Mises strength theory,an automatic simulation method of ductile crack propagation in metals is developed by finite element code ABAQUS.Using this method,the ductile crack propagation processes of compact tension,three-point bending and binocular plate specimens are simulated.The effects of loading conditions,mesh densities and the material properties on the fracture features of the specimens are discussed.It is shown that the proposed method predicts the 2D ductile crack propagation in metals reasonably;the simulated crack propagation paths are obviously dependent on the loading condition and the material properties.An effective tool for the simulation of ductile crack propagation in large-scale complex structures is established and a useful reference to further studies of elasto-plastic fracture theory is provided from this work.

关键词： Crack propagation Ductility Finite element Mesh density Material property

作者: Sujuan Guo Guozheng Kang Juan Zhang Yan Guo

作者单位: Department of Applied Mechanics and Engineering,Southwest Jiaotong University,Chengdu 610031,China

会议类型: 国际会议

会议名称: 国际断裂力学2009年会

会议地点: 成都

会议语种:英文

页码: 31-35

在线出版日期: 2009-10-16（万方平台首次上网日期，不代表论文的发表时间）