Titre :

Influence of the Unit Cell Parameters on the Thermomechanical Non-Symmetric In-Plane Shear Behavior of 2D Biaxial Braided Preform for Thermoplastic Biocomposites.

Auteur(s) :

Zhai, Wenqian [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
Soulat, Damien [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
Legrand, Xavier [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
Wang, Peng [Auteur]
Université de Strasbourg [UNISTRA]

Titre de la revue :

Polymers

Nom court de la revue :

Polymers (Basel)

Numéro :

14

Date de publication :

2022-03

ISSN :

2073-4360

Mot(s)-clé(s) en anglais :

biocomposites
thermoplastic polymer
braided preform
in-plane shear behavior
thermo-mechanics
thermoforming

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

The identification of thermomechanical in-plane shear behavior of preform is one of the most important factors to ensure the quality of the thermoplastic composites during the thermoforming process. In this present work, ...
Lire la suite >The identification of thermomechanical in-plane shear behavior of preform is one of the most important factors to ensure the quality of the thermoplastic composites during the thermoforming process. In this present work, the non-symmetric in-plane shear behavior of flax/polypropylene 2D biaxial braided preform for thermoplastic biocomposites was characterized at elevated temperature chamber by using bias-extension test. Analytical models of a bias-extension test based on non-symmetric unit cell geometry for 2D biaxial braids were defined and applied; the thermo-condition-dependent experiments were conducted to study the temperature and displacement rate dependences. The influence of unit cell geometry parameters including braiding angle, tow waviness, and cover factor on the thermal in-plane shear behavior was deeply invested, experiments in both axial and transversal directions were performed for a complete study, and asymmetric scissor mechanisms for in-plane shear behavior were introduced and studied. Finally, a simulation of thermal impregnation distribution based on unit cell geometry was made to clarify the importance of the overall fiber volume fraction.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
ENSAIT
Junia HEI

Collections :

• Génie des matériaux textiles (GEMTEX) - ULR 2641

Date de dépôt :

2023-06-20T01:37:16Z
2024-02-21T10:48:27Z