各种热塑性面纱交织物对受到低速冲击的碳纤维增强复合材料的影响

IF 3.6 4区 材料科学 Q2 MATERIALS SCIENCE, COMPOSITES
Taner Coskun, Yavuz Selim Tarih, Adem Yar, Ömer Gündoğdu, Ömer Sinan Sahin
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引用次数: 0

摘要

复合材料在其整个使用寿命期间可能会受到冲击载荷的影响,从而产生一些破坏机制,导致机械和动态响应性能下降。特别是基体引起的裂纹和分层会对最终性能产生重大影响,如果不采取必要的预防措施,会造成严重问题。在当前的研究中,我们制作了碳纤维增强聚合物(CFRP)复合材料,其中交错使用了细玻璃(FG)、聚醚酰亚胺(PEI)、聚醚醚酮(PEEK)、聚酰亚胺(PI)和聚苯硫醚(PPS)热塑性面纱,并在 25.2 J 恒定冲击能量下进行了 LVI 试验,以确定面纱对动态性能的影响。所选面纱均为市售材料,可用于各种用途。在这方面,研究的目的是检验这些市售薄纱作为中间膜的可用性,以及用作中间膜的薄纱对 CFRP 复合材料 LVI 特性的影响。本研究发现,薄纱夹层会显著影响复合材料的刚度,从而影响相关的 LVI 响应,如总冲量、弯曲刚度、相互作用时间等。例如,由于使用了 FG 薄膜交错层,峰值位移减少了约 21.2%,弯曲刚度增加了 73.23%。另一方面,当研究面纱类型的影响时,观察到 FG 和 PEI 交织面的 LVI 响应变化最大和最小,并发现 FG 面纱是 CFRP 复合材料最有效的面纱类型。研究还发现,薄纱夹层加强了层间区域和分层阻力,从而提高了所有配置的分层阈值载荷。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influences of various thermoplastic veil interleaves upon carbon fiber-reinforced composites subjected to low-velocity impact
Throughout their service life, composite materials may be subjected to impact loads, which can result in some damage mechanisms that cause degradation in mechanical and dynamic responses. Especially matrix-induced cracks and delamination can have significant effects on the final properties, and cause serious problems if the necessary precautions are not taken. In the current study, Carbon Fiber-Reinforced Polymer (CFRP) composites interleaved with Fine Glass (FG), Polyetherimide (PEI), Polyetheretherketone (PEEK), Polyimide (PI) and Poly-Phenylene Sulphide (PPS) thermoplastic veils were fabricated, and exposed to LVI tests under 25.2 J constant impact energy to determine how veils affect the dynamic properties. The selected veils are commercially available materials and are used for various purposes. In this regard, it was aimed to examine the usability of these commercially available veils as interlayers and to examine the impacts of the veils used as interlayers on the LVI characteristic of CFRP composites. According to the present study, it was found that veil interleaves significantly affect the composite stiffness, and accordingly, relevant LVI responses such as total impulse, bending stiffness, interaction times etc. For instance, approximately 21.2% reduction in the peak displacement and 73.23% increment in the bending stiffness were observed due to FG veil interleaves. On the other hand, when the effects of veil types were examined, the maximum and minimum variations in the LVI responses were observed for the FG and PEI interleaves, respectively, and FG veils were found to be the most effective veil types for the CFRP composites. It was also revealed that veil interleaves strengthen the interlaminar region between plies and delamination resistance, and thereby improved the Delamination Threshold Loads for all configurations.
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来源期刊
Journal of Thermoplastic Composite Materials
Journal of Thermoplastic Composite Materials 工程技术-材料科学:复合
CiteScore
8.00
自引率
18.20%
发文量
104
审稿时长
5.9 months
期刊介绍: The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).
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