Fatigue crack propagation behavior of adhesively-bonded CFRP/aluminum joints

被引：17

作者：

Ishii, K. ^{[1
]}

Imanaka, M.

Nakayama, H.

机构：

[1] Osaka Sangyo Univ, Fac Jr Coll Automobile Ind, Osaka 5748530, Japan

[2] Osaka Univ Educ, Dept Technol Educ, Osaka 5828582, Japan

[3] Osaka Sangyo Univ, Execut Off, Osaka 5748530, Japan

来源：

JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | 2007年 / 21卷 / 02期

关键词：

fatigue crack propagation rate; double cantilever-beam specimen; carbon-fiber-reinforced plastics; adhesively-bonded joint;

D O I：

10.1163/156856107780437499

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Fatigue tests were conducted on adhesively-bonded CFRP/aluminum double-cantilever beam (DCB) specimens to investigate the effect of adherend thickness on the fatigue crack growth rate. Components of the specimens were unidirectional composite, aluminum plate and a film-type epoxy adhesive. The experimental results indicate that the increase in the aluminum plate thickness lowers the fatigue threshold value and steepens the slope in the Paris region. To elucidate the effect of the adherend thickness on the fatigue crack propagation behavior, a finite element analysis was conducted to investigate the mode ratio, and stress and strain distributions near the crack tip, where the coefficient of thermal expansion mismatch between the aluminum and the CFRP plates was taken into account. The effect of the adherend thickness on the crack propagation rate has been tentatively explained in terms of stress distributions near the crack tip and crack propagation path.

引用

页码：153 / 167

页数：15

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