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Fracture criterion of mixed mode in adhesively bonded joints of Al/Steel dissimilar materials

Al/Steel 이종재료의 접착이음에 대한 혼합모드의 파괴기준

  • Published : 1997.08.01

Abstract

A method of strength evaluation applying fracture mechanics in the adhesively bonded joints of Al/Steel dissimilar materials was investigated in this paper. Various shapes of adhesively bonded Al/Steel scarf joints focussing on fracture criterion of mixed mode crack were prepared for the static tests. Also, stress intensity factors of the interface cracks in adhesively bonded joints of Al/Steel dissimilar materials were analyzed with 2-dimensional elastic program of boundary element method(BEM), and the experiment of fracture toughness were carried out under various mixed mode conditions. From the results, the fracture criterion and method of strength evaluation by the fracture toughness in adhesively bonded joints of Al/Steel dissimilar materials were proposed.

Keywords

Adhesively Bonded Joint;Dissimilar Materials;Interface Crack;Mixed Mode;Stress Intensity Factor;Boundary Element Method;Fracture Toughness;Fracture Cirterion

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