Prediction of the compressive damage response of flax-reinforced laminates using a mesoscale framework
Article dans une revue avec comité de lecture
Date
2021-01Journal
Composites Part A: Applied Science and ManufacturingAbstract
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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