作者: Xiaogang Chen , Yi Zhou , Garry Wells
DOI: 10.1016/J.COMPOSITESB.2013.10.019
关键词: Structural engineering 、 Ballistic impact 、 Finite element method 、 Deflection (engineering) 、 Composite material 、 Ultimate tensile strength 、 Materials science 、 Failure mode and effects analysis 、 Transverse plane 、 Armour 、 Polyethylene
摘要: Strong, low density fibres have been favoured materials for ballistic protection, but the choice of is limited making body armour that both protective and lightweight. In addition to developments improved fibres, alternative approaches are required creating more lighter armour. This paper reports on a study hybrid fabric panels protection. The Finite Element (FE) method was used predict response different layers in twelve-layer model upon impact. It found front likely be broken shear, rear tend fail tension. suggested using shear resistant layer tensile may improve performance panels. Two types structure, ultra-high-molecular-weight polyethylene (UHMWPE) woven unidirectional (UD) materials, were analyzed their failure mode impact by FE experimental methods. structures exhibit better resistance UD gives wider transverse deflection designed from fabrics. results showed placing fabrics close face material as led than panel constructed reverse sequence. has also optimum ratio 1:3. improvement protection allows less used, leading weight