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A 2D micro-mechanical model was proposed to study the compressive failure of UniDirectional (UD) carbon/epoxy composite. Considering the initial imperfection and strength distribution of the fiber, the plasticity and ductile damage of the matrix, the failure of T300/914 UD composite under longitudinal compression and in-plane combined loads was simulated by this model. Simulation results show that...
Kink band is a typical phenomenon in longitudinal compression of composites. Numerical simulations considering fiber misalignment and plastic matrix with ductile damage have been built to study the formation of kink band. The matrix was simulated by using the extended Drucker-Prager constitutive model. Then random fiber strength distribution and stiffness reduction were considered to simulate the...
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