Multiscale cohesive zone model of a composite microstructure

Abstract eng:
A finite element analysis of a polyimide matrix-carbon fibre microstructure has been carried out. Cohesive zone elements were used to model the interface between fibre and matrix with the cohesive parameters obtained from previous research involving the atomistic-tocontinuum level modelling of the fibre-matrix interface. The microstructure model underwent transverse loading with the stiffness, strength, and stress distribution calculated and compared to experimental results in the literature. The model was effective at predicting both stiffness and strength with respect to changes in temperature and showed the validity of using cohesive parameters obtained from atomistic based multiscale simulations.

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