Computational Analysis of Low Velocity Impact Response of Composite Panels

Abstract:

The present work deals with the finite element modelling of low velocity impact response of different types of composite panels for body armour application. The response of these composites panels including bonded, unbonded and partially bonded laminates has been simulated using non-linear finite element package LS-DYNA. 2D shell elements in LS-DYNA have been used to represent both resin bonded glass fabric targets and dry woven glass fabric panels. The hemispherical shaped projectile is being modelled with 3D solid elements. The results of the numerical analysis showed that the value of contact force for the fully bonded composites panels was significantly higher than that observed for the panels consisting of dry woven glass fabric. However, the corresponding displacement was substantially lower. The similar simulation of the partially bonded composite panels has shown a reduction of both the contact force and the displacement. In addition, it has been shown that the partially bonded composite panels are capable of absorbing higher levels of energy than the rigid panels.

• Periodical: Applied Mechanics and Materials (Volumes 157-158)
• Pages: 1135-1138
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.157-158.1135
• Online since: February 2012
• Authors: Mustafizur Rahman, Evgeny V. Morozov, Krishna Shankar, Alan Fien
• Keywords: Composite Panels, Impact Response, Numerical Modeling, Partially Bonded Laminates

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