Computation of Stress Intensity Factor for Multiple Cracks using Singular Finite Element

摘要：

The simplification of two dimensional approaches in singular finite elements has promoted the method to be used in the formulation of stress intensity factor (SIF) of multiple cracks in finite body. The effect of shielding and amplification are considered in defining the SIF. As been observed, the current available analytical approximations are more restricted to several assumptions. The more accurate and less restricted method has motivated this study. This paper presents the investigation of singular finite elements applied in two dimensional finite element models subjected to different crack-width ratio and cracks interval ratio. The newly finite element formulations are resulted with good agreement with theoretical statement compared to analytical solution. The weak points of presented analytical solution are discussed regards to the influence of crack width ratio and cracks interval ratio.

关键词： Multiple cracks crack interaction stress intensity factor linear elastic fracture mechanics

作者: R. Daud A.K. Ariffin S. Abdullah A.E. lsmail A. Zulkifli

作者单位: Division of Applied Mechanics,School of Mechatronic Engineering,Universiti Malaysia Perlis,Ulu Pauh Department of Mechanical and Materials Engineering,Faculty of Engineering and Built Environment,Univ

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 75-79

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）