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Thick obstacle problems with dynamic adhesive contact

Published online by Cambridge University Press:  25 September 2008

Jeongho Ahn*
Affiliation:
Department of Mathematics and Statistics, Arkansas State University, P.O. Box 70, State University, AR 72467, USA. jeongho.ahn@csm.astate.edu
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Abstract

In this work, we consider dynamic frictionless contact with adhesionbetween a viscoelastic body of the Kelvin-Voigt type and astationary rigid obstacle, based on the Signorini's contact conditions.Including the adhesion processes modeled by the bonding field, a newversion of energy function is defined. We use the energy functionto derive a new form of energy balance which is supported by numericalresults. Employing the time-discretization, we establish a numerical formulation and investigate the convergence of numerical trajectories. The fullydiscrete approximation which satisfies the complementarity conditionsis computed by using the nonsmooth Newton's method with the Kanzow-Kleinmichelfunction. Numerical simulations of a viscoelastic beam clamped attwo ends are presented.

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Type
Research Article
Copyright
© EDP Sciences, SMAI, 2008

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