Journal
COMPOSITES PART B-ENGINEERING
Volume 68, Issue -, Pages 385-391Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.09.009
Keywords
Laminates; Impact behavior; Finite Element Analysis (FEA); Damage mechanics; Composite
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In order to study the onset and the evolution of low velocity impact damages in Carbon-Epoxy plates, a numerical investigation has been led. A detailed finite element model has been created by using the finite element code Abaqus (R) which, thanks to the different implemented algorithms, allowed considering both intra-laminar and inter-laminar failure criteria. In particular, the numerical modelling technique of such failure criteria allowed predicting delamination growth, by using special purpose-elements (cohesive elements) and fiber and matrix failure, by using Hashin criteria. Moreover, with the aim to reduce the required CPU time, a global/local finite element modelling approach has been proposed. For validation purpose, numerical results have been compared with data from two sessions of experimental impact tests. The considered impact energy values are 6 J, 10 J and 13 J respectively. (C) 2014 Elsevier Ltd. All rights reserved.
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