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Influence of internally dropped-off plies on the impact damage of asymmetrically tapered laminated CFRP

机译:内部脱落层对不对称锥形层压CFRP冲击破坏的影响

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摘要

This paper presents an experimental study of low velocity impact response of carbon/epoxy asymmetrically tapered laminates. The tests are realised at energy between 10 and 30 J on two types of layup with multiple terminated plies. The type and localisation of damage are analysed using C-scan and micrographs. Then, the data is compared with the response of corresponding respective plain laminate.udThe effects of some tapering parameters (taper angle, drop-off disposition and configuration) on the impact damage mechanisms are also investigated. Very similar impact damage phenomena are found between tapered and plain laminates. The presence of material discontinuity due to the resin pocket affects less the damage mechanism than the structural difference between the thick and the thin sections.
机译:本文提出了碳/环氧不对称锥形层压板低速冲击响应的实验研究。该测试是在两种类型的带有多个端接帘布层的铺层上以10至30 J的能量实现的。使用C扫描和显微照片分析损伤的类型和位置。然后,将数据与相应的普通平面层压板的响应进行比较。在锥形层压板和普通层压板之间发现了非常相似的冲击破坏现象。由树脂袋引起的材料间断的存在对破坏机理的影响小于厚壁部分和薄壁部分之间的结构差异。

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