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Analyses of Stress Intensity Factors and Evaluation of Fracture Toughness in Adhesively Bonded DCB Joints
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 Title & Authors
Analyses of Stress Intensity Factors and Evaluation of Fracture Toughness in Adhesively Bonded DCB Joints
Jeong, Nam-Yong; Lee, Myeong-Dae; Gang, Sam-Geun;
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 Abstract
In this paper, an evaluation method of fracture toughness to apply interfacial fracture mechanics was investigated in adhesively bonded double-cantilever beam (DCB) joints. Four types of adhesively bonded DCB joints with an interface crack were prepared for analyses of the stress intensity factors using boundary element method(BEM) and the fracture toughness test. From the results of BEM analysis and fracture toughness experiments, it is found that the stress intensity factor, K1 is a parameter driving the fracture of adhesively bonded joints. Also, the evaluation method of fracture toughness by separated stress intensity factors of mixed mode cracks was proposed and the influences of mode components for its fracture toughness are investigated in adhesively bonded DCB joints.
 Keywords
Adhsively Bonded Joint;Interface Crack;Mixed Mode Separation;Double-Cantilever Beam;Stress Intensity Factor;Energy Release Rate;Boundary Element Method;
 Language
Korean
 Cited by
1.
이종 마찰용접재의 계면균열에 대한 파괴인성의 평가방법,정남용;박철희;

한국자동차공학회논문집, 2007. vol.15. 4, pp.171-177
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