WIAS Preprint No. 1322, (2008)

Convergence of solutions of kinetic variational inequalities in the rate-independent quasi-static limit



Authors

  • Mielke, Alexander
    ORCID: 0000-0002-4583-3888
  • Petrov, Adrien
  • Martins, Joao A. C.

2010 Mathematics Subject Classification

  • 34A60, 47H06, 73E50, 73E99, 74C05

Keywords

  • Rate-independent processes, quasi-static problems, differential inclusions,, elastoplasticity, hardening, variational formulations, slow time scale.

Abstract

This paper discusses the convergence of kinetic variational inequalities to rate-independent quasi-static variational inequalities. Mathematical formulations as well as existence and uniqueness results for kinetic and rate-independent quasi-static problems are provided. Sharp a priori estimates for the kinetic problem are derived that imply that the kinetic solutions converge to the rate-independent ones, when the size of initial perturbations and the rate of application of the forces tends to 0. An application to three-dimensional elastic-plastic systems with hardening is given.

Appeared in

  • J. Math. Anal. Appl., 348 (2008) pp. 1012--1020.

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