Title: On the design and optimisation of a multi-functional lightweight vehicular armour plate with functionally graded foams (FGF)

Authors: Feng Zhu; Clifford C. Chou; King H. Yang

Addresses: Bioengineering Center, Wayne State University, 818 W. Hancock, Detroit, MI 48201, USA ' Bioengineering Center, Wayne State University, 818 W. Hancock, Detroit, MI 48201, USA ' Bioengineering Center, Wayne State University, 818 W. Hancock, Detroit, MI 48201, USA

Abstract: This paper presents a theoretical concept study on the electromagnetic (EM) and shock wave mitigation capability of a novel sandwich armour panel in combat vehicles, which consists of two composite face-sheets and a core made of multi-layered Functionally Graded Foams (FGF). By carefully designing the gradient pattern of the core, the radar and blast wave attenuation performance of the structure can be improved through mathematical modelling and analysis. In this study, analytical models were first developed to predict the EM wave reflection and shock wave transmission of the sandwich structure designed. Based on the analytical models, a parametric study was performed to investigate the effect of gradient pattern on each of the two design objectives, and then a multi-objective optimisation was conducted to generate the optimal design. This new approach makes it possible to develop a multi-functional lightweight armour plate for military combat vehicle against radar surveillance systems and blast attack in battlefields.

Keywords: sandwich structure; FGF; functionally graded foam; electromagnetic waves; shock waves; multi-objective optimisation; lightweight vehicular armour; lightweight vehicles; sandwich armour panels; military combat vehicles; radar surveillance systems; blast attacks; mathematical modelling; optimal design; vehicle design; vehicle safety.

DOI: 10.1504/IJVS.2013.056966

International Journal of Vehicle Safety, 2013 Vol.6 No.4, pp.320 - 332

Published online: 16 Oct 2014 *

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