Discrimination of multiaxiality criteria using brittle fracture loci

被引:13
作者
BrucknerFoit, A [1 ]
Fett, T [1 ]
Schirmer, KS [1 ]
Munz, D [1 ]
机构
[1] RES CTR KARLSRUHE,IMF 2,D-76021 KARLSRUHE,GERMANY
关键词
D O I
10.1016/0955-2219(96)00055-6
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
The statistical distribution of brittle fracture loci was measured in the Brazilian disc test. A logical circuit was used to identify the fracture event in addition to fractographic examination. The empirical distribution of brittle fracture loci is compared with the predictions of the multiaxial Weibull theory. The results indicate that a shear-insensitive criterion is more suitable than a shear-sensitive criterion to describe the fracture behaviour of natural flaws in ceramic materials. Copyright (C) 1996 Elsevier Science Ltd
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页码:1201 / 1207
页数:7
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