A Goal Oriented Finite Element Method for Computing Stress Intensity Factors in Bimaterials

摘要：

We present a method for computing the stress intensity factors in bimaterials based on the goal oriented finite element error estimation. The stress intensity factors in bimaterials are first formulated as explicit computable linear function of the displacements by means of the two-points extrapolation method. Then the goal oriented finite element method is used to compute the lower and upper bounds on the stress intensity factors, and the average of the bounds is considered as a prediction of the stress intensity factor. At last, the stress intensity factors,and in bimaterials are computed with the proposed method to show its efficiency.

关键词： Stress intensity factors Bimaterials Goal Finite elements

作者: Z.C.Xuan J.W.Peng

作者单位: Department of Computer Science, Tianjin University of Technology and Education,Tianjin 300222, China Department of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin 300222

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）