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首页> 外文期刊>Journal of Materials Research and Technology >Performance of natural curaua fiber-reinforced polyester composites under 7.62mm bullet impact as a stand-alone ballistic armor
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Performance of natural curaua fiber-reinforced polyester composites under 7.62mm bullet impact as a stand-alone ballistic armor

机译：天然葫芦纤维增强聚酯复合材料在7.62mm子弹冲击下作为独立防弹装甲的性能

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摘要

A multilayered armor system (MAS) is intended to personal protection against high kinetic energy ammunition. MAS layers are composed of materials such as a front ceramic and a back composite that must show both high impact resistance and low weight, usually conflicting characteristics. Synthetic fiber fabrics, such as Kevlar? and Dyneema?, are the favorite materials to back the front ceramic, due to their high strength, high modulus and relatively low weight. Recently, composites reinforced with natural fibers have been considered as MAS second layer owing to their good performance associated with other advantages as being cheaper and environmentally friendly. Among the natural fibers, those extracted from the leaves of theAnanas erectifoliusplant, known as curaua, stand out due to its exceptional high strength and high modulus. Thus, the objective of the present work is to evaluate the performance of curaua fiber-reinforced polyester composites subjected to ballistic impact of high energy 7.62mm ammunition. Composites reinforced with 0, 10, 20 and 30vol.% of curaua fibers were produced and stand-alone tested as armor target to evaluate the absorbed energy. Analysis of variance (Anova) and Tukey's honest significant difference test (HSD) made it possible to compare the results to Kevlar? laminates. Among the tested materials, the 30vol.% fiber composites were found to be the best alternative to Kevlar?.
机译：多层装甲系统（MAS）用于个人防护高动能弹药。 MAS层由必须同时具有高抗冲击性和低重量（通常相互矛盾的特性）的前陶瓷和后复合材料组成。合成纤维织物，例如凯夫拉尔纤维？由于其高强度，高模量和相对较低的重量，Dyneema和Dyneema？是背面陶瓷的首选材料。近年来，由于天然纤维增强的复合材料具有良好的性能以及更便宜和环保的其他优势，因此被认为是MAS第二层。在天然纤维中，从凤梨（Ananas erectifolius）植物的叶子中提取的被称为curaua的那些，由于其卓越的高强度和高模量而脱颖而出。因此，本发明的目的是评估在高能7.62mm弹药的弹道冲击下姜黄纤维增强聚酯复合材料的性能。生产了用0、10、20和30vol。％的姜黄纤维增强的复合材料，并单独测试了其作为装甲目标，以评估吸收的能量。方差分析（Anova）和Tukey诚实的显着差异检验（HSD）使得可以将结果与Kevlar？进行比较。层压板。在测试的材料中，发现30vol。％的纤维复合材料是Kevlar？的最佳替代品。

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