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Damage modelling in thermoplastic composites reinforced with natural fibres under compressive loading

Auteurs : Ahcene MOKHTARI, Mohand Ould Ouali, Nacer Tala-Ighil
Année : 2015
Domaine : Génie mécanique
Type : Publication
Revue : International Journal of Damage Mechanics
Résumé en PDF : (résumé en pdf)
Fulltext en PDF : (.pdf)
Mots clés : Jute/polypropylene, mechanical behaviour, damage, laminates, modelling

Résumé :

In this work, the compression failure of thermoplastic composites made of jute/polypropylene is investigatedby experimental and numerical studies. Two laminate specimen’s lengths with different fibre orientations have been considered to analyse this composite type response to a compressive solicitation. The applied numerical model permits to understand the mechanisms of damage and evolution in the laminate.The interlayer damage (delamination) and the intra-layer damage (matrix cracking) have been modelled bythe combined use of the Cohesive Zones model (CZM) and the Matzenmiller, Lubliner and Taylor (MLT)mechanical model. It was found that the loading conditions of laminates and the fibres orientation affect the compression failure load of the thermoplastic composites.