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ON VARIATIONAL PRINCIPLES OF A PIEZOELECTRIC BODY
作者姓名:张海澜
摘    要:The consonance of state variables of a piezoelectric body is explored and four variational princi-ples of a piezoelectric body are systematically proposed.The Lagrangian function of each of theseprinciples is the difference between a corresponding thermodynamic function and the kinetic energy.These principles correspond to different physical conditions and are to be used in different problems.Their applications are discussed.

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