共线裂纹体尺寸对应力强度因子的影响  

INFLUENCE OF THE SIZE OF THE COLLINEAR CRACKED BODY TO THE STRESS INTENSITY FACTORS

作　　者：孟广伟[1] 郭学东[1] 聂毓琴[1] 王志超[1] 

机构地区：[1]吉林工业大学

出　　处：《上海力学》1992年第3期82-87,共6页Chinese Quarterly Mechanics

基　　金：国家自然科学基金资助课题

摘　　要：本文在文献[1]的基础之上,用文献[2]中提出的奇异准谐调元,进一步对二维裂纹体几何尺寸对一对共线裂纹应力强度因子的影响进行了大量的数值计算和研究,给出了计算表格、拟合曲线以及经验公式,定量地分析了裂纹体几何尺寸对共线裂纹应力强度因子的影响。为工程中的裂纹体的脆性断裂分析与评定,提供了必要的计算依据。In this paper, on the basis of [1], using quasicompatible finite element method [2], the influence of the size of the plate with a pair of collinear cracked is studied. Numerical computations together with data, curves and empirical formulas are given, all of which indicate clearly how the stress intensity faetores are affected by the size of the cracked body. The results of this peper provide a basis for the analyses and judgements for problems of brittle fracture in engineering fracture problems.

关 键 词：裂纹体 共线裂纹 应力强度固子 

分 类 号：O346.1[理学—固体力学]