Numerical simulation of the ballistic response of GRP plates

Autor:	D. Nandlall, Kevin V. Williams, Reza Vaziri
Rok vydání:	1998
Předmět:	Materials science Computer simulation Projectile Constitutive equation General Engineering Ceramics and Composites Rotational symmetry Ballistic limit Transient (oscillation) Composite material Finite element method Ballistic impact
Zdroj:	Composites Science and Technology. 58:1463-1469
ISSN:	0266-3538
DOI:	10.1016/s0266-3538(98)00030-x
Popis:	A new continuum damage-mechanics-based constitutive model for composite materials is implemented in the non-linear transient finite-element code LS-DYNA2D. In this work, the performance of the model is evaluated by conducting a series of numerical simulations involving high-velocity impact by projectiles. The predictive capability of this model is assessed by evaluating the ballistic limit of 9·5 mm and 19·05 mm thick S2-glass-fibre-reinforced plastic (GRP) laminates struck by a 2·84 g (44 grain) axisymmetric fragment simulating projectile (FSP). The limit velocities obtained compare reasonably well with the experimental values. Furthermore, it is demonstrated that the versatility afforded by the damage-mechanics model in representing a multitude of damage states and damage-growth rates is a desirable feature for simulating the progression of damage in ballistically impacted composite structures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8c88e669954a409e5252a2abeebf0826 https://doi.org/10.1016/s0266-3538(98)00030-x Zobrazit plný text záznamu Full Text from ScienceDirect