Abstract
The objective of the present paper is to predict numerically the effect of low velocity impact on the composite epoxy reinforced with quasi-unidirectional flax fabrics. The composite circular plate is meshed with a solid shell finite element (SS). Only one element in the thickness direction is adopted. This SS element is implemented into the user element (UEL) interface of ABAQUS in order to overcome numerical locking problems that may occurred when using the ABAQUS solid and shell elements. The epoxy/flax composite is characterized by a elasto-visco-plastic behavior. The Hill’s anisotropic criterion of plasticity with isotropic hardening and the Johnson-Cook viscoplastic model are applied. The simulations are accomplished via ABAQUS/Standard. The obtained results present the efficiency of the developed model using one solid shell element in the thickness direction from a computational point of view.
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