深圳大学学报（理工版）2009，Vol.26Issue(4)：371-375,5.
薄板中孔边裂纹与独立裂纹的相互作用
Interaction between hole edge and line cracks in a thin plate
摘要
Abstract
A problem of a wide plate with hole edge and line cracks subjected to remote bending was studied. Using the principle of superposition, the original problem was converted into two sub problems with hole edge crack. The remote bending was applied to the first problem. In the second problem, it was assumed that there was a continuous distribution of dislocations along the crack line, along which the induced tractions were opposite to those obtained in the first problem. The solution was formulated as a singular integral equation with the employment of the Green's function of a point dislocation. The closed form solution of the first problem, as well as the Green's function of the point dislocation, was obtained by means of complex stress functions approach and the rational mapping technique. A singular integral equation is obtained and solved numerically. The expression of the stress intensity factor is expressed in terms of the dislocation density function.关键词
薄板/角位错/孔边裂纹/有理型的保角映射/应力强度因子Key words
thin plate/ dislocation/ hole edge crack/ rational mapping function/ stress intensity factor分类
建筑与水利引用本文复制引用
王险峰,邢锋,王卫仑,隋莉莉,长古部宣男..薄板中孔边裂纹与独立裂纹的相互作用[J].深圳大学学报（理工版）,2009,26(4):371-375,5.基金项目
广东省自然科学基金资助项目(50608051) （50608051）
深圳市南山区科技计划资助项目(2008010) （2008010）
