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A constitutive model for self-reinforced ductile polymer composites


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Authors

Kazemahvazi, S 
Schneider, C 
Deshpande, VS 

Abstract

Self-reinforced polymer composites are gaining increasing interest due to their higher ductility compared to traditional glass and carbon fibre composites. Here we consider a class of PET composites comprising woven PET fibres in a PET matrix. While there is a significant literature on the development of these materials and their mechanical properties, little progress has been reported on constitutive models for these composites. Here we report the development of an anisotropic visco-plastic constitutive model for PET composites that captures the measured anisotropy, tension/compression asymmetry and ductility. This model is implemented in a commercial finite element package and shown to capture the measured response of PET composite plates and beams in different orientations to a high degree of accuracy.

Description

Keywords

Thermoplastic resin, Anisotropy, Finite element analysis (FEA), Self-reinforced composite

Journal Title

Composites Part A: Applied Science and Manufacturing

Conference Name

Journal ISSN

1359-835X
1878-5840

Volume Title

71

Publisher

Elsevier BV
Sponsorship
We are grateful to the Defence Advanced Research Projects Agency (Grant Number W91CRB-10-1-005) for the financial support for this research. C. Schneider was funded by the Centre of ECO2 Vehicle Design and the Swedish Agency for Innovation Systems (VINNOVA). The authors would like to acknowledge the support from the material supplier Comfil.