Modelling of composite sandwich structures with honeycomb core subjected to high-velocity impact |
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Authors: | Brenda L. Buitrago,Carlos Santiuste,Sonia Sá nchez-Sá ez,Enrique Barbero,Carlos Navarro |
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Affiliation: | 1. Department of Continuum Mechanics and Structural Analysis, University Carlos III of Madrid, Avda. de la Universidad 30, 28911 Leganés, Madrid, Spain;2. Department of Industrial Technology, Simón Bolivar University, Valle de Sartenejas, Caracas, Venezuela |
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Abstract: | In this study the perforation of composite sandwich structures subjected to high-velocity impact was analysed. Sandwich panels with carbon/epoxy skins and an aluminium honeycomb core were modelled by a three-dimensional finite element model implemented in ABAQUS/Explicit. The model was validated with experimental tests by comparing numerical and experimental residual velocity, ballistic limit, and contact time. By this model the influence of the components on the behaviour of the sandwich panel under impact load was evaluated; also, the contribution of the failure mechanisms to the energy-absorption of the projectile kinetic energy was determined. |
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Keywords: | Sandwich structures Numerical simulation High-velocity impact Honeycomb core |
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