Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

Mode III analysis of an interface crack in a bimaterial wedge made from magneto-electro-elastic media

Thomas Jin-Chee Liu, Ching-Hwei Chue*
Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan
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ABSTRACT
The mode III analysis of an interface crack in a bimaterial magneto-electro-elastic wedge has been studied. The three-phases magneto-electro-elastic field is induced by the piezoelectric/piezomagnetic BaTiO3-CoFe2O4 composite materials. For the crack problems, the intensity factors at crack tips are derived analytically. Also, the energy density criterion is applied to predict the fracture behavior of the interface crack.

Keywords:  Magneto-electro-elastic; Wedge; Interface crack
* Corresponding author. Tel.: +886 6 275 7575 ext. 62165; Fax: +886 6 236 3950; E-mail: chchue@mail.ncku.edu.tw