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Dynamic frictional contact of a viscoelastic beam

Published online by Cambridge University Press:  21 June 2006

Marco Campo ,
José R. Fernández ,
Georgios E. Stavroulakis  and
Juan M. Viaño
Marco Campo
Affiliation:
Departamento de Matemática Aplicada, Facultade de Matemáticas, Campus Sur s/n, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain. macampo@usc.es; jramon@usc.es; maviano@usc.es
José R. Fernández
Affiliation:
Departamento de Matemática Aplicada, Facultade de Matemáticas, Campus Sur s/n, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain. macampo@usc.es; jramon@usc.es; maviano@usc.es
Georgios E. Stavroulakis
Affiliation:
Department of Production Engineering and Management, Technical University of Crete, 73100 Chania, Greece. gestavr@dpem.tuc.gr
Juan M. Viaño
Affiliation:
Departamento de Matemática Aplicada, Facultade de Matemáticas, Campus Sur s/n, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain. macampo@usc.es; jramon@usc.es; maviano@usc.es
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Abstract

In this paper, we study the dynamic frictional contact of a viscoelastic beam with a deformableobstacle. The beam is assumed to be situated horizontally and to move, in both horizontal andtangential directions, by the effect of applied forces. The left end of the beam is clampedand the right one is free. Its horizontal displacement is constrained because of the presenceof a deformable obstacle, the so-called foundation, which is modelled by a normal compliance contact condition.The effect of the friction is included in the vertical motion ofthe free end, by using Tresca's law or Coulomb's law. In both cases, the variationalformulation leads to a nonlinear variational equation for the horizontal displacement coupledwith a nonlinear variational inequality for the vertical displacement. We recall an existenceand uniqueness result. Then, by using the finite element method to approximate the spatial variableand an Euler scheme to discretize the time derivatives, a numerical scheme is proposed. Error estimates on the approximative solutions are derived. Numerical results demonstrate the application of the proposed algorithm.

Keywords

Dynamic unilateral contactfrictionviscoelastic beamerror estimatesnumerical simulations.
Type
Research Article
Information
ESAIM: Mathematical Modelling and Numerical Analysis , Volume 40 , Issue 2 , March 2006 , pp. 295 - 310
Copyright
© EDP Sciences, SMAI, 2006

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