Fracture process zone of alumina WL-DCB specimen under cyclic loading

被引：0
|
作者：
Kokaly, MT [1 ]
Kobayashi, AS [1 ]
White, KW [1 ]
机构：
[1] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
来源：
PROCEEDINGS OF THE SEM IX INTERNATIONAL CONGRESS ON EXPERIMENTAL MECHANICS | 2000年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The trailing fracture process zone (FPZ) of an alumina WL-DCB specimen subjected to cyclic loading was analyzed by a hybrid experimental-numerical procedure involving phase-shifting moire interferometry and finite element analysis. The residual crack opening profile at unloading continued to increase with cyclic loading until it matched the crack opening profile at maximum load. This anomaly is attributed to the increasing interference of the pulled out grains and provides a mechanistic explanation for the common notion that monolithic ceramics do not fatigue.
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页码：294 / 297
页数：4
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