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Numerical analysisof a frictionless viscoelastic piezoelectric contact problem

Published online by Cambridge University Press:  05 June 2008

Mikael Barboteu
Affiliation:
Laboratoire de Mathématiques et Physique pour les Systèmes (MEPS), Bâtiment B3, case courrier 12, 52 Avenue Paul Alduy, 66860 Perpignan, France. barboteu@univ-perp.fr; youssef.ouafik@univ-perp.fr
Jose Ramon Fernández
Affiliation:
Departamento de Matemática Aplicada, Facultade de Matemáticas, Campus Sur s/n, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain. jramon@usc.es
Youssef Ouafik
Affiliation:
Laboratoire de Mathématiques et Physique pour les Systèmes (MEPS), Bâtiment B3, case courrier 12, 52 Avenue Paul Alduy, 66860 Perpignan, France. barboteu@univ-perp.fr; youssef.ouafik@univ-perp.fr
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Abstract

In this work, we consider the quasistatic frictionless contact problem between aviscoelastic piezoelectric body and a deformable obstacle. The linear electro-viscoelasticconstitutive law is employed to model the piezoelectric material and the normal compliancecondition is used to model the contact. The variational formulation is derived in a formof a coupled system for the displacement and electric potential fields. An existence anduniqueness result is recalled. Then, a fully discrete scheme is introduced based on thefinite element method to approximate the spatial variable and an Euler scheme to discretizethe time derivatives. Error estimates are derived on the approximative solutions and,as a consequence, the linear convergence of the algorithm is deduced under suitableregularity conditions. Finally, some two-dimensional examples are presented to demonstratethe performance of the algorithm.

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Type
Research Article
Copyright
© EDP Sciences, SMAI, 2008

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