EVALUATION OF R-CURVE EFFECTS IN CERAMICS

被引：39
|
作者：
FETT, T [1 ]
机构：
[1] UNIV KARLSRUHE,INST ZUVERLASSIGKEIT & SCHADENSKUNDE MASCHINENBAU,W-7500 KARLSRUHE,GERMANY
来源：
JOURNAL OF MATERIALS SCIENCE | 1993年 / 28卷 / 03期
关键词：
D O I：
10.1007/BF01151251
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In coarse-grained alumina the crack growth resistance increases with increasing crack extension due to crack-border interactions. The crack shielding stress intensity factor can be calculated from the relation between the bridging stresses and the crack opening displacement. The parameters of this relation can be obtained from experimental results on stable or subcritical crack extension. Finally the effect of the R-curve on the behaviour of components with small cracks is discussed.
引用
收藏
页码：742 / 752
页数：11
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