FATIGUE-CRACK GROWTH AND STRESS REDISTRIBUTION AT INTERFACES

被引：31
作者：
SHAW, MC
MARSHALL, DB
DALGLEISH, BJ
DADKHAH, MS
HE, MY
EVANS, AG
机构：
[1] UNIV CALIF SANTA BARBARA, DEPT MAT, SANTA BARBARA, CA 93106 USA
[2] ROCKWELL SCI CTR, THOUSAND OAKS, CA 91360 USA
[3] UNIV CALIF BERKELEY, DEPT MAT SCI, BERKELEY, CA 94720 USA
来源：
ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 12期
关键词：
D O I：
10.1016/0956-7151(94)90187-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The role of the interface in redistributing stress around cracks in multilayered ceramic/metal composites is investigated. The emphasis is on the different effects of interfacial debonding or of plastic slip in the metal phase adjacent to strongly bonded interfaces. The experiments are conducted on alumina/aluminum multilayered composites. Monotonic loading precracked test pieces causes plastic shear deformation within the aluminum layer at the tip of the notch without debonding. However, interfacial debonding can be induced by cyclic loading, in accordance with a classical fatigue mechanism. Measurements of the stress around the crack demonstrate that debonding is much more effective than slip at reducing the stress ahead of the crack.
引用
收藏
页码：4091 / 4099
页数：9
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