Finite element simulation of stress intensity factors in elastic-plastic crack growth

作     者：ALSHOAIBI Abdulnaser M ARIFFIN Ahmad Kamal 

作者机构：Computational Mechanics Research Group Department of Mechanical and Materials Engineering Faculty of Engineering Universiiy Kebangsaan Malaysia Bangi 43600 Malaysia 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2006年第7卷第8期

页      面：1336-1342页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Crack propagation Nodal displacement Stress intensity factor Adaptive mesh Finite element method (FEM) 

摘      要：A finite element program developed elastic-plastic crack propagation simulation using Fortran language. At each propagation step, the adaptive mesh is automatically refined based on a posteriori h-type refinement using norm stress error estimator. A rosette of quarter-point elements is then constructed around the crack tip to facilitate the prediction of crack growth based on the maximum normal stress criterion and to calculate stress intensity factors under plane stress and plane strain conditions. Crack was modelled to propagate through the inter-element in the mesh. Some examples are presented to show the results of the implementation.