A User Defined Material Model for the Simulation of Impact Induced Damage in Composite

Abstract:

Low velocity impacts induce concurring failure phenomena in unidirectional fiber reinforced composites. Hence a refined methodology able to predict the different failure modes and their interaction is mandatory to correctly predict the damage onset and evolution. Indeed, intra-laminar damage and inter-laminar damage often take place concurrently, causing a significant strength reduction up to composite structure collapse. In this paper, a numerical study is proposed which, by means of non-linear explicit FEM analysis, aims to completely characterize the composite reinforced laminates damage under low velocity impacts by introducing a user defined material model in the FEM code ABAQUS. The proposed 3-D numerical investigation allowed to obtain an exhaustive insight on the different phases of the impact event considering the damage formation and evolution.

• Periodical: Key Engineering Materials (Volume 713)
• Pages: 14-17
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.713.14
• Online since: September 2016
• Authors: Aniello Riccio*, S. Saputo, Andrea Sellitto
• Keywords: Damage Mechanics, Finite Element Analysis (FEA), Impact Behaviour, Laminate

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