Numerical simulation of the thermoforming of multi-layer polymer sheets
Résumé
This paper presents a 3D finite element model of the thermoforming process. The polymer material is assumed to obey the viscoplastic law proposed by G'Sell and Jonas, the coefficient of which have been identified for a polystyrene. The implementation of this constitutive model, the heat transfer coupling and the proposed multi-layer approach are detailed in the paper. Axisymmetric validation tests and an application to the thermoforming of an industrial component are also reported.
Domaines
Matériaux
Origine : Fichiers produits par l'(les) auteur(s)
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