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Trans. JWRI, Vol. 29 (2000), No. 2, pp. 71-75.


Strength Analysis of Joints between Dissimilar Materials Using Interface Elements

Hidekazu MURAKAWA, Hisashi SERIZAWA, Zhengqi WU and Masakazu SHIBAHARA

ABSTRACT

     Crack propagation in both brittle and ductile materials and debonding along the interface in composite materials are typical examples of fractures. In these types of fractures, the failure is the consequence of surface formation accompanied by crack extension. Based on this understanding, the authors proposed an interface element which explicitly models the formation of new surfaces. The proposed method is applied to peeling of thin films from substrates, dynamic crack propagation in elastic materials and ductile crack growth. In this report, its applications to the strength analysis of elastic plate with a center crack and bonded joints between dissimilar materials are presented.


KEY WORDS: Interface Element, Finite Element Method, Surface Energy, Joint, Crack Propagation, Fracture, Dissimilar Materials

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