Closure effects on fatigue crack detection

被引：20

作者：

Zhang, WZ ^{[1
]}

Testa, RB ^{[1
]}

机构：

[1] Columbia Univ, Dept Civil Engn & Engn Mech, New York, NY 10027 USA

来源：

JOURNAL OF ENGINEERING MECHANICS-ASCE | 1999年 / 125卷 / 10期

关键词：

D O I：

10.1061/(ASCE)0733-9399(1999)125:10(1125)

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An experimental study of crack closure and its effects on the vibration of a simple beam shows that both frequency and damping changes due to the crack are influenced significantly, to the point of being obscured in some cases. The nonlinearity induced by crack closure is also explored. The results will be of value in the further development of models to detect crack damage in structures as well as in modeling crack closure and the mechanism of damping at a crack.

引用

页码：1125 / 1132

页数：8

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