 |
 |
Communication dans un congrès
Relationships between processing conditions and mechanical properties of PA12 tubes
Abstract : In polyamide 12 (PA12) tube extrusion, calibration is the key step of the process that affects the subsequent mechanical properties. In previous work it has been shown that according to the calibration conditions, a very oriented skin layer may be created, which has been correlated to an important decrease of elongation at break. In this paper, we present new results showing a good correlation between molecular orientation and fracture toughness, as evaluated by the EWF (Essential Work of Fracture) approach. They concern notched specimens and confirm the results obtained in classical tensile testing. EWF is very sensitive to processing conditions, and especially to induced orientation: it decreases from the external to the inner regions of the tube, and increases with skin orientation.
Littérature citée [3 références]
https://hal-mines-paristech.archives-ouvertes.fr/hal-00509432
Contributeur : Magalie Prudon <>
Soumis le : jeudi 12 août 2010 - 12:01:52
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54
Archivage à long terme le : : mardi 23 octobre 2012 - 12:10:08
Contributeur : Magalie Prudon <>
Soumis le : jeudi 12 août 2010 - 12:01:52
Dernière modification le : jeudi 24 septembre 2020 - 17:22:54
Archivage à long terme le : : mardi 23 octobre 2012 - 12:10:08
Fichier
esaform2009_haudin2.pdf
Fichiers produits par l'(les) auteur(s)