Affiliations: [a] State Key Laboratory of Mechanics and Control of Mechanical Structures/College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China | [b] Department of Engineering Mechanics/The Key Laboratory for Health Monitoring and Control of Large Structures/Provincial Collaborative Innovation Center of Mechanics of intelligent materials, Shijiazhuang Tiedao University, Shijiazhuang 050043, PR China
Correspondence:
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Corresponding authors: J. X. Liu, Department of Engineering Mechanics/The Key Laboratory for Health Monitoring and Control of Large Structures/Provincial Collaborative Innovation Center of Mechanics of intelligent materials, Shijiazhuang Tiedao University, Shijiazhuang 050043, PR China. E-mail: liujx@stdu.edu.cn and Z. H. Qian, State Key Laboratory of Mechanics and Control of Mechanical Structures/College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China. E-mail: qianzh@nuaa.edu.cn
Abstract: The fracture behaviors of a piezoelectric-piezomagnetic sandwich structure with an eccentric internal crack subjected to two kinds of in-plane electromechanical loads have been studied in this paper. A singular integral equation with Cauchy kernel is obtained by means of Fourier transform and further solved by using Gauss-Chebyshev technique. Then the stress intensity factors are obtained and some numerical results are presented to show the effects of the material properties, structure geometries, electromechanical loads and the crack location on the stress intensity factors. The conclusions of the present paper may be useful for the design and fracture prediction of layered piezoelectric-piezomagnetic structures.
