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Prediction of the compressive damage response of flax-reinforced laminates using a mesoscale framework

Article dans une revue avec comité de lecture
Author
NICOLINCO, Constantin
85251 Ryerson University [Toronto]
MAHBOOB, Zia
222472 Department of mechanical and industrial engineering (Toronto, CANADA)
CHEMISKY, Yves
1002421 Institut de Mécanique et d'Ingénierie [I2M]
MERAGHNI, Fodil
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
OGUAMANAM, Donatus
85251 Ryerson University [Toronto]
BOUGHERARA, Habiba
85251 Ryerson University [Toronto]
222472 Department of mechanical and industrial engineering (Toronto, CANADA)

URI
http://hdl.handle.net/10985/22675
DOI
10.1016/j.compositesa.2020.106153
Date
2021-01
Journal
Composites Part A: Applied Science and Manufacturing

Abstract

Compressive mechanical testing was performed on continuous fiber Flax/Epoxy laminate specimens, capturing, and quantifying its evolving in-plane plasticity and moduli. This non-linear behaviour was simulated using a modified continuum damage mechanics-based model. The standard Mesoscale Damage Theory (MDT) of Lade­ veze and Le Dantec was modified to include fiber-direction damage and plasticity evolution constitutive equa­tions in order to capture the non-linear behavior observed in Natural Fiber Composites (NFCs). The model parameters were experimentally identified and optimized. Validations have been performed on Flax/Epoxy laminates of various fiber orientations, as well as on E-Glass/Polyester using data from available literature. The proposed model successfully predicts the NFCs nonlinear compressive mechanical response. It is a robust pre­dictive tool to aid engineers and designers in the development of load-bearing biomaterial-reinforced composites.

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