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Article Contents

Hemivariational inequality for a frictional contact problem in elasto-piezoelectricity

• In this paper we study a class of inequality problems for static frictional contact between a piezoelastic body and a foundation. The constitutive law is assumed to be electrostatic and involves a nonlinear elasticity operator. The contact is described by Clarke subdifferential relations of nonmonotone and multivalued character in the normal and tangential directions on the boundary. We derive a variational formulation which is a coupled system of a hemivariational inequality and an elliptic equation. The existence of solutions to the model is a consequence of a more general result obtained from the theory of pseudomonotone mappings. Conditions under which a solution of the system is unique are also presented.
Mathematics Subject Classification: Primary: 74M15, 47J20, 35J85, 74G25, 74G30; Sec-ondary: 35R70, 74F20, 49J40.

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