Acta Mechanica Solida Sinica

, Volume 30, Issue 1, pp 21–26 | Cite as

Differential derivation of momentum and energy equations in electroelasticity

  • Jiashi Yang


This paper presents a derivation of the equations of linear momentum, angular momentum, and energy of an electroelastic body using a composite particle consisting of two differential elements based on Tiersten’s two-continuum model. The differential derivation shows the physics involved in a way different from the integral approach in the literature. Like the integral approach, it also produces the expressions of the electric body force, couple, and power which are fundamental to the development of the nonlinear macroscopic theory of an electroelastic body.


Nonlinear Electroelasticity Piezoelectricity momentum energy 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2014

Authors and Affiliations

  1. 1.Piezoelectric Device Laboratory, School of Mechanical Engineering and MechanicsNingbo UniversityNingboChina
  2. 2.Department of Mechanical and Materials EngineeringUniversity of Nebraska-LincolnLincolnUSA

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