国防科技大学学报Issue(1)：156-162,7.DOI:10.11887/j.cn.201601025
双材料 V 型切口应力强度因子的加料有限元分析
Enriched finite element analysis of stress intensity factors of bi-material V-notch
摘要
Abstract
The V-notch asymptotic displacement field was derived through an approach based on the Williams’series expansion and linear algebraic transforms.By incorporating the displacement expressions to the common isoparametric elements,the enriched and transition element displacement model were obtained,and then the enriched finite element equation was derived consequently.The enriched finite element model for a V-notched bi-material three-point bending beam and an orthogonal bonded materials interface end plane problem were constructed.The stress intensity factors can be solved directly from the finite element equation.Comparisons between the results and the published data computed with other algorithm indicate that the present method is correct and can be used to analyze the fracture property of the V-notched bi-material structure.关键词
双材料 V 型切口/渐进位移场/加料单元/过渡单元/应力强度因子Key words
bi-material V-notch/asymptotic displacement field/enriched element/transition element/stress intensity factor分类
数理科学引用本文复制引用
杨军辉,韩珺礼,雷勇军,蒙上阳..双材料 V 型切口应力强度因子的加料有限元分析[J].国防科技大学学报,2016,(1):156-162,7.基金项目
国家自然科学基金资助项目 （）
