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Article Dans Une Revue International Journal for Multiscale Computational Engineering Année : 2010

Dynamic crack propagation using a combined molecular dynamics/extended finite element approach

Résumé

A method is presented for simulating dynamic crack propagation using a coupled molecular dynamics/extended finite element method. Molecular dynamics is used at the crack tip while the extended finite element method naturally models the crack in the wake of the tip as a traction-free discontinuity. After recalling the basic molecular dynamics equations, the discretization of the continuum and the traction-free discontinuity via the extended finite element method, and the zonal coupling method between both domains, two-dimensional computations of dynamic fracture are presented, including a discussion on how to move and/or expand the zone in which molecular dynamics is used upon crack propagation.
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hal-00938617 , version 1 (15-07-2021)

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Pascal Aubertin, Julien Réthoré, René de Borst. Dynamic crack propagation using a combined molecular dynamics/extended finite element approach. International Journal for Multiscale Computational Engineering, 2010, 8, pp.221-235. ⟨10.1615/IntJMultCompEng.v8.i2.70⟩. ⟨hal-00938617⟩
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