engleski

On Numerical Prediction of Damage in Laminated Composite Shells Subjected to Low Velocity Impact

The paper addresses the problem of damage in layered composite shells by computational model that starts from the basic assumption that appearance of matrix cracks, in the case of low velocity impact, is interrelated and precursor to the appearance of delaminations. The numerical procedure elaborated in the paper employs 3D finite elements with reduced integration in the computation of stress field in the vicinity of the impact point. All calculations have been performed within the frame of ABAQUS software as it is possible to implement specially devised subroutines in it.

finite element analysis; layered composite shells; impact damage; delaminations; matrix cracks

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