Publication :


Title:

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

Authors: C. Espinosa, F. Lachaud, J. Limido , J.L. Lacôme, A. Bisson and M. Charlotte
Year: mai 2015
Journal: Computational Particle Mechanics.
Volume: 2, Number: 1, Pages: 1-17

DOI: 10.1007/s40571-014-0031-6
Référencé ISI Web Of Science
Référencé Scopus

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

Bibtex citation :
@article{Espinosa2015,
Author={Espinosa, C. and Lachaud, F. and Limido , J. and Lac\^ome, J.L. and Bisson , A. and Charlotte, M.},
Title={Coupling continuous damage and debris fragmentation for energy absorption prediction by cfrp structures during crushing},
Journal={Computational Particle Mechanics},
Month={may},
Volume={2},
Number={1},
Pages={1-17},
Year={2015}}


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