Interaction of dynamic mode-I cracks with inclined interfaces

被引：18

作者：

Chalivendra, V. B. ^{[1
]}

Rosakis, A. J. ^{[2
]}

机构：

[1] Univ Massachusetts Dartmouth, Dept Mech Engn, N Dartmouth, MA 02747 USA

[2] CALTECH, Grad Aeronaut Labs, Pasadena, CA 91125 USA

来源：

ENGINEERING FRACTURE MECHANICS | 2008年 / 75卷 / 08期

关键词：

dynamic fracture; inclined interfaces; crack deflection and penetration; dynamic photoelasticity; high-speed photography;

D O I：

10.1016/j.engfracmech.2007.08.005

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, we report on an experimental study of the deflection/penetration behavior of dynamic model-I cracks propagating at two different crack velocities (slower and faster) toward inclined weak interfaces of three dissimilar angles (alpha): 30 degrees, 45 degrees and 60 degrees. A simple wedge-loading specimen configuration as proposed by Xu et al. [Xu LR, Huang YY,] Rosakis AJ. Dynamic crack deflection and penetration at interface in homogenous materials: experimental studies and model predictions. J Mech Phys Solids 2003;51:461-86], made of brittle Homalite- 100, is used. A modified Hopkinson bar setup is used to achieve well-controlled impact loading conditions. Dynamic photoelasticity in conjunction with high-speed photography is used to capture real-time isochromatics associated with deflected/penetrated cracks. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2385 / 2397

页数：13

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