Experimental and theoretical study of uniaxial deformation of amorphous poly(ethylene terephthalate) above glass transition temperature - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Plastics, Rubber and Composites Année : 2013

Experimental and theoretical study of uniaxial deformation of amorphous poly(ethylene terephthalate) above glass transition temperature

(1) , (1) , (1) , (1)
1

Résumé

Uniaxial deformation of amorphous thick and massive poly(ethylene terephthalate) (PET) samples above the glass transition temperature has been studied in the temperature range relevant to the stretch–blow moulding process of PET bottles. A video controlled system coupled to a novel clamping device, together with accurate control of the thermal gradient in the material, make it possible to determine true stress v. true strain data at constant true strain rate up to very high strains of ∼2.5. The mechanical response of PET in these conditions is modelled as a molecular network exhibiting a rubber-like behaviour. Sufficiently far from the alpha transition, it is shown that the Edwards and Vilgis model is able to reproduce experimental data accurately, which also offers a relevant insight into the nature of the molecular networks. Closer to the alpha transition, this purely hyperelastic model needs refining and improving to take into account an additional non-elastic contribution.
Fichier non déposé

Dates et versions

hal-01654657 , version 1 (04-12-2017)

Identifiants

Citer

Eric Gorlier, Jean-François Agassant, Jean-Marc Haudin, Noëlle Billon. Experimental and theoretical study of uniaxial deformation of amorphous poly(ethylene terephthalate) above glass transition temperature. Plastics, Rubber and Composites, 2013, 11th International Conference on Deformation, Yield and Fracture of Polymers, 30 (2), pp.48 - 55. ⟨10.1179/146580101101541435⟩. ⟨hal-01654657⟩
120 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More