脆性弹性固体压痕过程中的断裂演化

A. P. S. Selvadurai
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引用次数: 31

摘要

本文研究了具有光滑平面接触面的圆柱形冲头在脆性弹性半空间压痕过程中的裂纹扩展问题。本文提出了一种在脆性弹性固体中定位裂纹形核点的方法,并采用边界元技术来定位随着冲头上力的增加裂纹演化的过程。数值结果说明了裂纹扩展程度对压头载荷-位移关系的影响。版权所有©2000 John Wiley&;有限公司。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fracture evolution during indentation of a brittle elastic solid

This paper examines the problem of crack extension during the indentation of a brittle elastic half-space by a cylindrical punch with a smooth flat contact surface. The paper develops a procedure for locating the point of nucleation of the crack within the brittle elastic solid and employs a boundary element technique to locate the progress of crack evolution as the force on the punch is increased. The numerical results illustrate the influence of the extent of crack development on the load–displacement relationship for the indentor. Copyright © 2000 John Wiley & Sons, Ltd.

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