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TECHNICAL BRIEFS

A Brief Evaluation of Approximation Methods for Microcrack Shielding Problems

[+] Author and Article Information
Xiangqiao Yan

 Research Laboratory on Composite Materials, Harbin Institute of Technology, Harbin 150001, Chinayanxiangqiao@hotmail.com

J. Appl. Mech 73(4), 694-696 (Sep 28, 2005) (3 pages) doi:10.1115/1.2127957 History: Received April 19, 2005; Revised September 28, 2005

This note can be regarded as a supplement of a paper entitled “On the Use of Approximation Methods for Microcrack Shilding Problems” (H. Cai and K. T. Faber, 1992, ASME J. Appl. Mech.59, 497–501). In this note, an effective approximation method for microcrack shielding problems is introduced briefly and is further used to study the examples given in the Cai and Faber paper for the interaction of a macrocrack with microcracks. It is found that the applicability range of the present approximation method in which the errors are acceptably small is much larger than that of the approximation methods listed in the Cai and Faber paper.

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Copyright © 2006 by American Society of Mechanical Engineers
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References

Figures

Grahic Jump Location
Figure 4

Comparison of the change in the mode I stress intensity for the horizontal microcrack

Grahic Jump Location
Figure 3

Comparison of the change in the mode I stress intensity for the collinear microcrack

Grahic Jump Location
Figure 2

Macrocrack interaction with a parallel microcrack

Grahic Jump Location
Figure 1

Macrocrack interaction with a collinear microcrack

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