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Numerical analysis of high velocity impacts on unidirectional laminates

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URI: https://hdl.handle.net/10016/23116
ISSN: 0263-8223
DOI: 10.1016/j.compstruct.2013.08.035
UXXI: AR/0000014605
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numerical_CS_2014_ps.pdf (1001.76 KB)
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2014-01
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Abstract
In this work a numerical methodology to predict the behavior of composite unidirectional laminates under high velocity impact is developed. In order to validate the model, experimental results of high velocity impacts of steel sphere against laminate coupons, were accomplished. The residual velocity in case of penetration and the damaged area in the panel are the variables chosen to validate the results obtained in the numerical methodology proposed. Finally an analysis of the influence of the projectile geometry is accomplished. (C) 2013 Elsevier Ltd. All rights reserved.
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Carbon, Epoxy, Impact, High velocity, Unidirectional, Hydrodinamic Ram Phenomenon, Composite structures, Damage model, CFRP, Behavior, Delimination, Thin, Performance, Simulation, Criteria
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Composite Structures, January 2014, v. 107, pp. 629– 634.
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