Exact Electromagnetothermoelastic Solution for a Transversely Isotropic Piezoelectric Hollow Sphere Subjected to Arbitrary Thermal Shock |
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| Authors: | Hong-Liang Dai Hong-Yan Zheng Lei Yang |
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| Institution: | 1.Department of Engineering Mechanics, College of Mechanical & Vehicle Engineering,Hunan University,Changsha,China;2.Research and Development Center for Deep-sea Detection Equipment,Hunan University,Changsha,China |
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| Abstract: | This paper presents analytical study for electromagnetothermoelastic transient behavior of a transversely isotropic hollow
sphere, placed in a uniform magnetic field, subjected to arbitrary thermal shock. Exact solutions for the transient responses
of stresses, perturbation of magnetic field vector, electric displacement and electric potential in the transversely isotropic
piezoelectric hollow sphere are obtained by means of the Hankel transform, the Laplace transform and their inverse transforms.
An interpolation method is used to solve the Volterra integral equation of the second kind caused by interactions among electric,
magnetic, thermal and elastic fields. From the sample numerical calculations, it is seen that the present method is suitable
for the transversely isotropic hollow sphere, placed in a uniform magnetic field, subjected to arbitrary thermal shock. Finally,
the result can be used as a reference to solve other transient coupling problems of electromagnetothermoelasticity. |
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