A constitutive model for self-reinforced ductile polymer composites
Composites Part A: Applied Science and Manufacturing
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Kazemahvazi, S., Schneider, C., & Deshpande, V. (2015). A constitutive model for self-reinforced ductile polymer composites. Composites Part A: Applied Science and Manufacturing, 71 32-39. https://doi.org/10.1016/j.compositesa.2015.01.003
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.
Thermoplastic resin, Anisotropy, Finite element analysis (FEA), Self-reinforced composite
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.
External DOI: https://doi.org/10.1016/j.compositesa.2015.01.003
This record's URL: https://www.repository.cam.ac.uk/handle/1810/247000