Applied Mathematics and Mechanics (English Edition) ›› 2015, Vol. 36 ›› Issue (7): 911-926.doi: https://doi.org/10.1007/s10483-015-1957-9

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Existence results for unilateral contact problem with friction of thermo-electro-elasticity

H. BENAISSA1, EL-H. ESSOUFI1, R. FAKHAR2   

  1. 1. Laboratoire de Recherche en Mathématique, Informatique et Sciences de l'Ingénieur (MISI), Settat 26000, Morocco;
    2. Laboratoire de Science des Matériaux, des Milieux et de la Modélisation (LS3M), Université Hassan 1, Khouribga 25000, Morocco
  • Received:2014-07-18 Revised:2014-12-29 Online:2015-07-01 Published:2015-07-01
  • Contact: R. FAKHAR E-mail:rachidfakhar@yahoo.fr

Abstract: This work studies a mathematical model describing the static process of contact between a piezoelectric body and a thermally-electrically conductive foundation. The behavior of the material is modeled with a thermo-electro-elastic constitutive law. The contact is described by Signorini's conditions and Tresca's friction law including the electrical and thermal conductivity conditions. A variational formulation of the model in the form of a coupled system for displacements, electric potential, and temperature is de- rived. Existence and uniqueness of the solution are proved using the results of variational inequalities and a fixed point theorem.

Key words: Signorini's condition, fixed point process, Tresca's friction, variational inequality, static frictional contact, thermo-piezoelectric material, frictional heat generation

2010 MSC Number: 

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