Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Stretch blow moulding of PET; structure development and constitutive model

Abstract : Microstructure of PET in stretch blow moulding is studied combining controlled tension followed by quenching, free-blow and ISBM. Due to quenching, observed final microstructure is often closer to a mesophase than to crystal. Texture is, for its part, controlled by the loading path. In fact stretching only induces appearance of an oriented precursor-phase that will become a crystal during cooling steps providing that this latter is slow enough. Microstructure evolution does not obey the classical "nucleation -growth" schematic. This enlightens development of constitutive models demonstrating the irrelevance of the crystallinity ratio as parameter and of the Avrami-like approach as part of the model. One, model based on revisited network approach is suggested.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-mines-paristech.archives-ouvertes.fr/hal-00820970
Contributeur : Magalie Prudon <>
Soumis le : mardi 7 mai 2013 - 10:03:57
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54

Identifiants

Citation

Noëlle Billon, Martin Picard, Eric Gorlier. Stretch blow moulding of PET; structure development and constitutive model. International Journal of Material Forming, Springer Verlag, 2014, 7 (3), pp.369-378. ⟨10.1007/s12289-013-1131-1⟩. ⟨hal-00820970⟩

Partager

Métriques

Consultations de la notice

370