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Mathematical and Numerical Simulation of Equilibrium of an Elastic Body Reinforced by a Thin Elastic Inclusion

  • N. A. Kazarinov
  • E. M. Rudoy
  • V. Yu. Slesarenko
  • V. V. Shcherbakov
Article

Abstract

A boundary value problem describing the equilibrium of a two-dimensional linear elastic body with a thin rectilinear elastic inclusion and possible delamination is considered. The stress and strain state of the inclusion is described using the equations of the Euler–Bernoulli beam theory. Delamination means the existence of a crack between the inclusion and the elastic matrix. Nonlinear boundary conditions preventing crack face interpenetration are imposed on the crack faces. As a result, problem with an unknown contact domain is obtained. The problem is solved numerically by applying an iterative algorithm based on the domain decomposition method and an Uzawa-type algorithm for solving variational inequalities. Numerical results illustrating the efficiency of the proposed algorithm are presented.

Keywords

thin elastic inclusion delamination crack nonpenetration condition variational inequality domain decomposition method Uzawa algorithm 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • N. A. Kazarinov
    • 1
  • E. M. Rudoy
    • 1
    • 2
  • V. Yu. Slesarenko
    • 1
  • V. V. Shcherbakov
    • 1
    • 2
  1. 1.Lavrentyev Institute of Hydrodynamics, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  2. 2.Novosibirsk State UniversityNovosibirskRussia

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