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Level set X-FEM non matching meshes: application to dynamic crack propagation in elastic-plastic media

Benoit Prabel 1, 2, 3 Alain Combescure 1 Anthony Gravouil 1, 3 Stéphane Marie 4, 5 
2 DYN - Laboratoire d'études de DYNamique
SEMT - Service d'Etudes Mécaniques et Thermiques : DEN/DM2S/SEMT
3 MIMESIS - Mécanique Multiéchelle pour les solides
LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
4 LISN - Laboratoire d'Intégrité des Structures et de Normalisation
SEMT - Service d'Etudes Mécaniques et Thermiques : DEN/DM2S/SEMT
Abstract : This paper develops two aspects improving crack propagation modeling with the X-FEM method. On the one hand, it explains how one can use at the same time a regular structured mesh for a precise and efficient level set update and an unstructured irregular one for the mechanical model. On the other hand, a new numerical scheme based on the X-FEM method is proposed for dynamic elastic-plastic situations. The simulation results are compared with two experiments on PMMA for which crack speed and crack path are provided.
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Submitted on : Thursday, April 22, 2010 - 12:48:21 PM
Last modification on : Friday, July 1, 2022 - 2:00:21 PM
Long-term archiving on: : Tuesday, September 28, 2010 - 12:37:24 PM

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Benoit Prabel, Alain Combescure, Anthony Gravouil, Stéphane Marie. Level set X-FEM non matching meshes: application to dynamic crack propagation in elastic-plastic media. International Journal for Numerical Methods in Engineering, Wiley, 2006, 69 (8), pp.1553-1569. ⟨10.1002/nme.1819⟩. ⟨cea-00475611⟩

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