減衰を考慮した二層複合薄膜の一般化された一次元熱弾性解析

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This paper deals with one-dimensional generalized thermoelasticity in a composite thin film constructed of a piezoceramic layer and a structural layer , when damping effect is taken into account. The film is initially at reference temperature and subjected to a ramp heating on the free surface of the piezoceramic layer. By applying Lord and Shulman's theory the governing equations for the temperature changes, heat fluxes, particle velocities, axial stresses and electric field intensity are reduced to a system of nine first-order partial differential equations. This problem has been numerically analyzed by employing the method of characteristics. Finally, the effect of a damping coefficient on time histories of the temperature changes, axial stresses and electric field intensity are illustrated graphically.
2008-02-25