The three dimensional extended bridging domain method for brittle fracture

H. Talebi, M. Silani, T. Rabczuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a concurrent multiscale method for coupling the three dimensional continuum and molecular dynamics domain is presented. The coupling method is based on the Bridging Domain method. To handle discontinuities in continuum domain, the extended finite element method (XFEM) is used. The Lennard-Jones potential is used to model the interactions in the atomistic domain and the Cauchy-Born method is used to compute the material behaviour in the continuum domain. To show the productivity and applicability of the proposed method, two different three dimensional crack examples were modeled. The results show that the method is capable of handling dislocation nucleation and crack propagation in the three dimensional space.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Engineering Computational Technology, ECT 2012
PublisherCivil-Comp Press
Volume100
ISBN (Print)9781905088553
Publication statusPublished - 2012
Event8th International Conference on Engineering Computational Technology, ECT 2012 - Dubrovnik, Croatia
Duration: 2012 Sep 42012 Sep 7

Other

Other8th International Conference on Engineering Computational Technology, ECT 2012
CountryCroatia
CityDubrovnik
Period12/9/412/9/7

Keywords

  • Bridging domain method
  • Extended finite element method
  • Molecular dynamics
  • Multiscale methods

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Computational Theory and Mathematics
  • Artificial Intelligence

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