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International Journal of Fracture

, Volume 203, Issue 1–2, pp 3–19 | Cite as

Goal-oriented error estimation and mesh adaptivity in 3d elastoplasticity problems

  • S. Sh. Ghorashi
  • T. RabczukEmail author
CompMech

Abstract

We propose a 3D adaptive method for plasticity problems based on goal-oriented error estimation, which computes the error with respect to a prescribed quantity of interest. It is a dual-based scheme which requires an adjoint problem. The computed element-wise errors at each load/displacement increment are utilized for the mesh adaptivity purpose. Mesh adaptivity procedure is performed based on refinement and coarsening by introducing hanging nodes in quadrilateral and hexahedral elements in 2d and 3d, respectively. Several numerical simulations are investigated and the results are compared with available analytical solutions, existing experimental data and results of mesh adaptivity based on other conventional error estimation methods.

Keywords

Goal-oriented error estimation Mesh adaptivity Elastoplasticity Von-Mises stress 

Notes

Acknowledgments

The research has been supported by the German Research Foundation (DFG) through Research Training Group 1462, which is gratefully acknowledged by the authors.

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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.Research Training Group 1462Bauhaus-Universität WeimarWeimarGermany
  2. 2.Division of Computational MechanicsTon Duc Thang UniversityHo Chi Minh CityVietnam
  3. 3.Faculty of Civil Engineering, Ton Duc Thang UniversityHo Chi Minh CityVietnam
  4. 4.Institute of Structural MechanicsBauhaus-Universität WeimarWeimarGermany

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