Numerical prediction of the chip formation process and induced damage during the machining of carbon/epoxy composites

Abstract : A finite element model has been developed to analyze the chip formation process and subsurface damage when machining the unidirectional \CFRP\ composites (carbon fiber reinforced polymer). The proposed approach is based on combined elastoplastic–damage model taking into account the stiffness degradation of mechanical properties in the material response. The plasticity generated by the fiber–matrix debonding and matrix cracking has been considered in the workpiece material during the cutting operation. This allows on one hand a better understanding of the physics of cutting phenomena occurring during the chip formation process (formation of several chips), and on the other hand to accurately predict the cutting forces and the damage induced by the cutting tool in the workpiece. The comparison between the obtained results and experiments shows a good agreement.
Keywords : Damage mechanisms
Type de document :
Article dans une revue
International Journal of Mechanical Sciences, Elsevier, 2015, 90, pp.89 - 101. 〈10.1016/j.ijmecsci.2014.10.018〉
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https://hal.univ-lorraine.fr/hal-01417911
Contributeur : Lemta Ul <>
Soumis le : vendredi 16 décembre 2016 - 10:53:36
Dernière modification le : vendredi 9 mars 2018 - 14:52:02

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Sofiane Zenia, Lanouar Ben Ayed, Mohammed Nouari, Arnaud Delamézière. Numerical prediction of the chip formation process and induced damage during the machining of carbon/epoxy composites. International Journal of Mechanical Sciences, Elsevier, 2015, 90, pp.89 - 101. 〈10.1016/j.ijmecsci.2014.10.018〉. 〈hal-01417911〉

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