Near Crack Line Plastoehstic Andysis of mode ⅢEdge Cracked Plates LoadedbyPoint Forces

Journal of Chongqing Jiaotong University(Natural Science) ›› 1994, Vol. 13 ›› Issue (S1): 1-5.

Near Crack Line Plastoehstic Andysis of mode ⅢEdge Cracked Plates LoadedbyPoint Forces

Yi Zhijian,Han Yong

Dcpartnient of Bridge and Structural Engineering

Received:1994-09-11 Revised:1994-09-11 Online:1994-08-05 Published:2015-04-15

Ⅲ型边裂纹受一对集中力时裂纹线场的弹塑性分析

易志坚，韩勇

重庆交通学院桥梁系

作者简介:易志坚,男,31岁,副教授

Abstract

Abstract: In this paper,the small scale yielding conditions liave been abandoned。By using the near crackline anaIYsis method,the plastoelastic solutions,which are sufficiently precise near the crack line,havebeen obtained for a mode Ⅲedge cracked plate with infinite demensions loaded by point forces in per-fect plastoelastic material;Through a reasonable assumption,mode Ⅲedge cracked plate with finite de-mensions loadeo by Doint forces,has also been analysed.

Key words: mode Ⅲedge crack, near crack line analysis, point force, plastoelaltic beundary, plastoelas-tic fields

摘要： 本文在完全放弃了小范围屈服条件的情况下，采用线场分析方法对理想弹塑性Ⅲ型边裂纹无限板裂纹面受一时集中力的情形进行了分析。其结果在裂纹线附近足够精确，通过一合理假定，本文还对Ⅲ型边裂纹有限宽板裂纹面受一对集中力的情形进行了分析。

关键词: Ⅲ型边裂纹, 线场分析, 集中力, 弹塑性边界, 弹塑性场

CLC Number:

O346.1

Yi Zhijian,Han Yong. Near Crack Line Plastoehstic Andysis of mode ⅢEdge Cracked Plates LoadedbyPoint Forces[J]. Journal of Chongqing Jiaotong University(Natural Science), 1994, 13(S1): 1-5.

易志坚，韩勇. Ⅲ型边裂纹受一对集中力时裂纹线场的弹塑性分析[J]. 重庆交通大学学报（自然科学版）, 1994, 13(S1): 1-5.

[1]	Wang Bin. Obtaining the Intensity Factors for Mode Ⅲ Cracked Strips by Using the Near Crack Line Analysis Method [J]. Journal of Chongqing Jiaotong University(Natural Science), 1997, 16(1): 114-117.
[2]	Yi Zhijian. Near Crack Line Elastc Plastic Analysis of a Cracked Plate Loaded by Antiplane Point Forces [J]. Journal of Chongqing Jiaotong University(Natural Science), 1994, 13(4): 1-6.
[3]	Wang Qizhi. New Stress Intensity Factor Expressions For TwoKinds of Cracked Strips BiaslyLoaded by Point Forces [J]. Journal of Chongqing Jiaotong University(Natural Science), 1994, 13(1): 30-34.