[1]何江达,范景伟.纯剪应力作用下岩石的Ⅱ型断裂韧度[J].郑州大学学报(工学版),1991,12(03):72-77.
　He Jiangda,Fan Jingwei,Pure shear stress Active Rock Type II broken toughness[J].Journal of Zhengzhou University (Engineering Science),1991,12(03):72-77.
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纯剪应力作用下岩石的Ⅱ型断裂韧度()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
12卷
期数:
1991年03期
页码:
72-77
栏目:
出版日期:
1991-09-28

文章信息/Info

Title:
Pure shear stress Active Rock Type II broken toughness
作者:
何江达;范景伟;
成都科技大学,成都科技大学,
Author(s):
He Jiangda; Fan Jingwei;
Chengdu University of Science and Technology, Chengdu University of Science and Technology,
关键词:
Ⅱ型裂纹; 断裂特征; 直剪试验
Keywords:
Type II cracks;  break features;  direct shear test
文献标志码:
A
摘要:
本文根据含Ⅱ型裂纹介质在纯剪应力场作用下,裂纹尖端的不同周向上,存在着某个方向拉应力最大,某个方向的剪应力最大,讨论了裂纹初始扩展(断裂)可能呈拉裂或剪坏两种特征,由此定义了两类相应的断裂韧度;并导出了两者的关系式。文中还介绍了笔者室内测定岩石断裂韧度的试验成果及利用剪切面含50％裂隙现场大剪试验资料分析岩石断裂韧度的方法。并讨论了实际含裂隙岩体断裂分析如何选取这两类断裂韧度值。
Abstract:
In this article, according to the type II cracking medium, under the influence of pure shear force field, the different circumstances of the tip of the cracks have the most stress in a certain direction, and the shear stress in a certain direction has the largest two characteristics of the initial expansion (fracture) of the cracks. The article also introduces the test results of the author’s indoor measuring rock fracture toughness and the method of using the cutting test data of 50 % cracks on the field with the shear surface. And discusses how to choose these two types of fracture tough values.
更新日期/Last Update: 1900-01-01