A two-dimensional ordinary, state-based peridynamic model for linearly elastic solids

Q. V. Le, W. K. Chan, Justin Schwartz

Research output: Contribution to journalArticle

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Abstract

SUMMARY: Peridynamics is a non-local mechanics theory that uses integral equations to include discontinuities directly in the constitutive equations. A three-dimensional, state-based peridynamics model has been developed previously for linearly elastic solids with a customizable Poisson's ratio. For plane stress and plane strain conditions, however, a two-dimensional model is more efficient computationally. Here, such a two-dimensional state-based peridynamics model is presented. For verification, a 2D rectangular plate with a round hole in the middle is simulated under constant tensile stress. Dynamic relaxation and energy minimization methods are used to find the steady-state solution. The model shows m-convergence and δ-convergence behaviors when m increases and δ decreases. Simulation results show a close quantitative matching of the displacement and stress obtained from the 2D peridynamics and a finite element model used for comparison.

Original languageEnglish (US)
Pages (from-to)547-561
Number of pages15
JournalInternational Journal for Numerical Methods in Engineering
Volume98
Issue number8
DOIs
StatePublished - May 25 2014

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All Science Journal Classification (ASJC) codes

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics

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