首页 | 本学科首页   官方微博 | 高级检索  
     

缺口件长短裂纹的分界及其确定
引用本文:尚德广 王德俊. 缺口件长短裂纹的分界及其确定[J]. 东北大学学报(自然科学版), 1997, 18(5): 469-472
作者姓名:尚德广 王德俊
作者单位:东北大学机械工程学院
摘    要:以45号钢正火材料角边V形缺口试件为研究对象,对缺口根部应力应变场进行了仔细地分析和研究,利用弹塑性断裂力学理论,提出缺口根部分布J积分的概念。

关 键 词:应力强度因子 缺口 裂纹 应力应变场 分界点

A Method of Determining the Separating Points for Fatigue Short and Long Cracks at Notch
Shang Deguang,Wang Dejun. A Method of Determining the Separating Points for Fatigue Short and Long Cracks at Notch[J]. Journal of Northeastern University(Natural Science), 1997, 18(5): 469-472
Authors:Shang Deguang  Wang Dejun
Abstract:The single edge V shaped notch specimens are used as the research subject. The stress strain field at notch root is studied and analyzed in detail. The concept of distribution J integral at notch root is put forward by means of elastic plastic theory. A kind of new method for determining the separating points for fatigue short cracks and long cracks is given,which has a clear physical significance. Good agreement between theoretical results and experimental results has been achieved.
Keywords:fatigue short crack  fatigue long crack  cyclic J integral  stress intensity factor.
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号