On the Magneto-Thermo-Elastic Behavior of a Functionally Graded Cylindrical Shell with Pyroelectric Layers Featuring Interlaminar Bonding Imperfections Rested in an Elastic Foundation

Subject Areas : Engineering

M  Saadatfar ¹ (Faculty of Mechanical Engineering, K.N. Toosi University of Technology)
M  Aghaie-Khafri ² (Faculty of Mechanical Engineering, K.N. Toosi University of Technology)

Received: 2015-06-29 Accepted : 2015-08-28 Published : 2015-09-30

Keywords: magnetic field, Elastic foundation, Pyroelectric, Imperfect bonding, Exponentially graded cylindrical shell,

Abstract :

The behavior of an exponentially graded hybrid cylindrical shell subjected to an axisymmetric thermo-electro-mechanical loading placed in a constant magnetic field is investigated. The hybrid shell is consisted of a functionally graded host layer embedded with pyroelectric layers as sensor and/or actuator that can be imperfectly bonded to the inner and the outer surfaces of a shell. The shell is simply supported and could be rested on an elastic foundation. The material properties of the host layer are assumed to be exponentially graded in the radial direction. To solve governing differential equations, the Fourier series expansion method along the longitudinal direction and the differential quadrature method (DQM) across the thickness direction are used. Numerical examples are presented to discuss effective parameters influence on the response of the hybrid shell.

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