The effect of neighbouring cracks on elliptical crack initiation and propagation in uniaxial and triaxial stress fields
The effect of neighbouring cracks on elliptical crack initiation and propagation in uniaxial and triaxial stress fields
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DOI：
10.1016/s0013-7944(97)00095-7
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发表时间：
1998-01-01
影响因子：
5.4
通讯作者：
Lajtai, EZ
中科院分区：
文献类型：
--
作者：
Eberhardt, E;Stead, D;Lajtai, EZ
脆性断裂及其与强度关系的研究是岩石力学和许多其他工程学科的基础部分。这些裂纹的萌生、扩展和合并导致材料强度下降并最终导致失效。结果表明，平行于载荷方向排列的椭圆形裂纹的相邻尖端之间的应力相互作用可以对裂纹萌生和扩展产生重大影响。根据每个裂纹之间的距离以及施加在它们周围介质上的载荷条件，相邻裂纹的添加可以起到抑制或促进裂纹生长的作用。 (C) 1998 爱思唯尔科学有限公司。
The study of brittle fracture and its relationship to strength is a fundamental part of rock mechanics and a number of other engineering disciplines. The initiation, propagation and coalescence of these fractures results in the degradation of material strength and eventually leads to failure. Results show that the interaction of stresses between neighbouring tips of elliptical cracks aligned parallel to the direction of loading can have a significant influence on one another in terms of crack initiation and propagation. Depending on the distance separating each crack and the loading conditions imposed on the medium surrounding them, the addition of neighbouring cracks can act to;either suppress or promote crack growth. (C) 1998 Elsevier Science Ltd.