The scattering of SH wave on cracks in magneto-electro-elastic composites bonded to a piezoelectric material

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Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (20) : 192-197.

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The scattering of SH wave on cracks in magneto-electro-elastic composites bonded to a piezoelectric material

YANG Juan ，LI Xing

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Abstract

The scattering of SH wave on cracks in magneto-electro-elastic composites substrate was studied. Considering the electric permeable boundary conditions, by using the Fourier cosine transform, the problem was transformed to a pair of dual integral equations, which were then reduced to the Fredholm integral equation of second kind by the using the Copson methods, and the normalized dynamic stress intensity factor at the crack tip was obtained. Finally, numerical results showed the influence of the length of the crack, the thickness of the strip, the frequency of SH wave and the incidence angle upon the normalized stress intensity factor.

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scattering of SH wave / magneto-electro-elastic composites / crack / dual integral equation / dynamic stress intensity factor

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YANG Juan;LI Xing. The scattering of SH wave on cracks in magneto-electro-elastic composites bonded to a piezoelectric material [J]. Journal of Vibration and Shock, 2014, 33(20): 192-197