13th International Conference on Fracture June 16–21, 2013, Beijing, China -10- interaction integral on the basis of an expanded tensor notation to solve the SIFs, EDIF and MIIF. The interaction integral does not require material properties to be differentiable and moreover, it is domain-independent for material interfaces which bring a great convenience to the fracture analysis of practical MEE composites. Using this method, the fracture problems of a particulate MEE composite are studied. The results imply that the actual microstructures of MEE composites composed of PE and PM phases have a great influence on their fracture performance. Acknowledgements This work is sponsored by NSFC (Grant Nos. 11072068 and 11202058), the China Postdoctoral Science Foundation (Grant Nos. 20110491071 and 2012T50338), the Fundamental Research Funds for the Central Universities (Grant No. HIT. NSRIF. 2013082). References [1] J.X. Liu, X.L. Liu, Y.B. Zhao, Green’s functions for anisotropic magnetoelectroelastic solids with an elliptical cavity or a crack. Int J Eng Sci, 39 (2001) 1405-1418. [2] B.L. Wang, Y.W. Mai, Crack tip field in piezoelectric/piezomagnetic media. Eur J Mech A-Solids, 22 (2003) 591-602. [3] C.F. Gao, H. Kessler, H. Balke, Crack problems in magnetoelectroelastic solids. Part I: exact solution of a crack. Int J Eng Sci, 41 (2003) 969-981. [4] M. Stern, E.B. Becker, R.S. Dunham, A contour integral computation of mixed-mode stress intensity factors. Int J Fract, 12 (1976) 359-368. [5] M. Enderlein, A. Ricoeur, M. Kuna, Finite element techniques for dynamic crack analysis in piezoelectrics. Int J Fract, 134 (2005) 191-208. [6] B.N. Rao, M. Kuna, Interaction integrals for fracture analysis of functionally graded magnetoelectroelastic materials. Int J Fract, 153 (2008) 15-37. [7] H.J. Yu, L.Z. Wu, L.C. Guo, J.W. Ma, H. Li, A domain-independent interaction integral for fracture analysis of nonhomogeneous piezoelectric materials. Int J Solids Struct, 49 (2012) 3301-3315. [8] L. Pasternak, Doubly periodic arrays of cracks and thin inhomogeneities in an infinite magnetoelectroelastic medium. Eng Anal Bound Elem, 36 (2012) 799-811 [9] W.J. Feng, Y.S. Li, X. Han, Z.H. Xu, Application of the extended traction boundary element-free method to the fracture of two-dimensional infinite magnetoelectroelastic solid. Sci China-Phys Mech Astron, 54 (2011) 1141-1153.
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