INFLUENCE OF SURFACE STRESS ON INDENTATION CRACKING

被引：20

作者：

GREEN, DJ

MALONEY, BR

机构：

[1] Pennsylvania State Univ, Dep of, Materials Science & Engineering,, University Park, PA, USA, Pennsylvania State Univ, Dep of Materials Science & Engineering, University Park, PA, USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1986年 / 69卷 / 03期

关键词：

FRACTURE MECHANICS - Surfaces - MATERIALS TESTING - Fracture;

D O I：

10.1111/j.1151-2916.1986.tb07412.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A simple, two-dimensional fracture mechanics analysis was used to determine the influence of nonuniform residual surface stresses on the formation of radial indentation cracks. The indentation behavior depends on the depth of the compressive stresses, such that the apparent fracture toughness passes through a maximum with increasing indentation load. The analysis was used to estimate the surface stress from indentation data for a zirconia-toughened ceramic.

引用

页码：223 / 225

页数：3