SOME EFFECTS OF CAVITIES ON THE FRACTURE OF CERAMICS .2. SPHERICAL CAVITIES

被引：50

作者：

EVANS, AG

BISWAS, DR

FULRATH, RM

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT & MOLEC RES,BERKELEY,CA 94720

[2] ROCKWELL INT,CTR SCI,THOUSAND OAKS,CA 91360

[3] UNIV CALIF BERKELEY,DEPT MAT SCI & MINERAL ENGN,BERKELEY,CA 94720

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1979年 / 62卷 / 1-2期

关键词：

D O I：

10.1111/j.1151-2916.1979.tb18815.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：

Fracture probabilities associated with spherical cavities were analyzed by combining principles of fracture mechanics and fracture statistics. The analysis is based on the theory that fracture occurs from a distribution of cracks located at the cavity surfaces. It predicts effects on strength of cavity size and cavity volume content (porosity) that depend sensitively on the flaw population in relation to the cavity size distribution. The theory has limit solutions that coincide with several models of fracture derived for porous ceramics. The predicted effects of pore size on strength are compared with some available data. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：101 / 106

页数：6

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