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Coupling continuous damage and debris fragmentation for energy absorption prediction by cfrp structures during crushing

Espinosa, Christine and Lachaud, Frédéric and Limido, Jérôme and Lacome, Jean-Luc and Bisson, Antoine and Charlotte, Miguel Coupling continuous damage and debris fragmentation for energy absorption prediction by cfrp structures during crushing. (2015) Computational Particle Mechanics, 2 (1). 1-17. ISSN 2196-4378

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Official URL: http://dx.doi.org/10.1007/s40571-014-0031-6

Abstract

Energy absorption during crushing is evaluated using a thermodynamic based continuum damage model inspired from the Matzenmiller–Lubliner–Taylors model. It was found that for crash-worthiness applications, it is necessary to couple the progressive ruin of the material to a representation of the matter openings and debris generation. Element kill technique (erosion) and/or cohesive elements are efficient but not predictive. A technique switching finite elements into discrete particles at rupture is used to create debris and accumulated mater during the crushing of the structure. Switching criteria are evaluated using the contribution of the different ruin modes in the damage evolution, energy absorption, and reaction force generation.

Item Type:Article
HAL Id:hal-01847364
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > IMPETUS Afea SAS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: Miguel CHARLOTTE
Deposited On:04 Nov 2016 17:48

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