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首页> 外文期刊>Composite Structures >Low velocity axial collapse behavior of E-glass fiber/epoxy composite conical frusta
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Low velocity axial collapse behavior of E-glass fiber/epoxy composite conical frusta

机译：E-玻璃纤维/环氧树脂复合圆锥形锥的低速轴向塌陷行为

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摘要

The collapse behavior of random, woven [0/90] and angle-ply [+/- 60 degrees] oriented Glass Fiber Reinforced Composite (GFRP) conical frusta under low velocity axial impact loading is reported in this work. The GFRP conical frusta having uniform wall thickness with semi-apical angle in the range of 15-24 degrees were fabricated using chopped random, woven roving and uni-directional ply-oriented E-glass fiber mats through hand layup method. The low velocity drop weight impact test setup was utilized to study the load-deformation and energy-absorption characteristics of conical frusta at different strain rates. The finite element analysis (FEA) were also performed using ABAQUS (R) software to predict the collapse behavior and energy-absorption characteristics of the same categories of GFRP specimen models similar to the experimental conditions. The results from both the procedures were compared and the crashworthiness characteristics of GFRP conical frusta were studied. The energy-absorption characteristics of conical frusta during impact and quasi-static loading testing were also compared and reported. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在这项工作中报道了无规，机织[0/90]和角铺层[+/- 60度]取向的玻璃纤维增​​强复合材料（GFRP）圆锥体的低速轴向冲击载荷下的坍塌行为。使用切碎的无规，编织粗纱和单向层取向的E型玻璃纤维毡，通过手工铺层法制造壁厚均匀，半顶角在15-24度范围内的GFRP圆锥形视锥。利用低速降重冲击试验装置研究了不同应变速率下圆锥形锥壳的载荷变形和能量吸收特性。还使用ABAQUS（R）软件进行了有限元分析（FEA），以预测与实验条件相似的相同类型GFRP样品模型的坍塌行为和能量吸收特性。比较了两种方法的结果，并研究了GFRP圆锥形圆锥体的耐撞性。还比较并报道了圆锥形锥壳在冲击和准静态载荷测试过程中的能量吸收特性。 （C）2017 Elsevier Ltd.保留所有权利。

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