A Brief Evaluation of Approximation Methods for Microcrack Shielding Problems

Author:

Yan Xiangqiao1

Affiliation:

1. Research Laboratory on Composite Materials, Harbin Institute of Technology, Harbin 150001, China

Abstract

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.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Reference13 articles.

1. Toughening of Ceramics by Circumferential Microcracking;Evans;J. Am. Ceram. Soc.

2. Finite Element Method Simulation of Crack Propagation in a Brittle Microcracking Solids;Charalambides;Mech. Mater.

3. Crack Tip Shielding by Micro-Cracking in Brittle Solids;Hutchinson;Acta Metall.

4. A Treatment of Inelasticdeformation Around a Crack Tip Due to Microcracking;Hoagland;J. Am. Ceram. Soc.

5. Computer Simulation of R-Curve in Microcracking Materials;Bowling;J. Am. Ceram. Soc.

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