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Permanent indentation characterization for low-velocity impact modelling using three-point bending test

Hongkarnjanakul, Natthawat and Rivallant, Samuel and Bouvet, Christophe and Miranda, Arturo Permanent indentation characterization for low-velocity impact modelling using three-point bending test. (2014) Journal of Composite Materials, 48 (20). 2441-2454. ISSN 0021-9983

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Official URL: http://dx.doi.org/10.1177/0021998313499197

Abstract

This paper deals with the origin of permanent indentation in composite laminates subjected to low-velocity impact. The three-point bending test is used to exhibit a non-closure of matrix crack which is assumed as a cause of permanent indentation. According to the observation at microscopic level, this non-closure of crack is produced by the blocking of debris inside matrix cracking and the formation of cusps where mixed-mode delamination occurs. A simple physicallybased law of permanent indentation, ‘‘pseudo-plasticity’’, is proposed. This law is qualitatively tested by three-point bending finite element model and is lastly applied in low-velocity impact finite element model in order to predict the permanent indentation. A comparison between low-velocity impact experiments and simulations is presented.

Item Type:Article
HAL Id:hal-01851599
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: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)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: christophe bouvet
Deposited On:05 Sep 2013 14:20

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