环境老化条件下玻璃/碳纤维混合多层复合材料的机械特性表征

Wessam Saadoun Al Azzawi, Hala Kadhim, Abdul Jabbar Saad Jomah
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摘要

由于碳纤维复合材料具有重量轻、机械性能优异和耐腐蚀的特点,船艇工业中的金属部件正在被碳纤维复合材料所取代。然而,碳纤维的成本阻碍了这种替代。建议采用杂化技术将碳纤维和玻璃纤维融合成具有成本效益的复合材料,同时保持所需的工程特性。本研究通过实验研究了杂化和海水老化对玻璃纤维和碳纤维混合复合材料机械性能的影响。制作了一系列复合材料([C]6、[CGC]s、[C]3[G]3、[GCG]s 和 [G]6),并在模拟海水溶液中进行老化,然后对其拉伸、弯曲、冲击和硬度性能进行了检测。结果表明,老化会导致性能退化,退化程度受 s 杂化配置的影响。G]6 样品的抗拉强度降低幅度最大,为 30%,而 [C]6 为 20%。其余样品的降解率介于这两个极端之间。在抗弯试验中也观察到了类似的情况,不过极值较小,分别为 10.2% 和 12.5%。冲击和硬度测试表明,玻璃纤维含量与老化导致的冲击强度下降之间存在反比关系,而它们与老化导致的硬度下降之间存在线性关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mechanical Properties Characterization of Glass/Carbon Fiber Hybrid Multilayer Composite under Environmental Aging Condition
Metallic components in boating industry are being replaced with carbon fiber composites due to their light weight, excellent mechanical properties, and corrosion resistance. However, the carbon fiber cost has obstructed the substitution. Hybridization is suggested to merge carbon and glass fibers in cost-effective composites while maintaining the desired engineering properties. This study experimentally examines the impact of hybridization and seawater aging on the mechanical properties of glass and carbon fibers hybrid composites. A range of composites ([C]6, [CGC]s, [C]3[G]3, [GCG]s, and [G]6) are fabricated and aged in simulated seawater solution before their tensile, flexural, impact, and hardness properties are examined. The results revealed degradation in properties due to the ageing, the degree of degradation is influenced by the s hybridization configuration. The [G]6 sample shows the highest tensile strength reduction of 30% compared to 20% for the [C]6. The remaining samples exhibit reduction percentages falling between these two extremes. A similar behavior is observed in the flexural test, though the extremes values are smaller, 10.2%, and 12.5%. The impact and hardness tests showed an inverse relationship between the glass fiber content and impact strength degradation due to aging, while they exhibited a linear correlation for hardness degradation due to ageing.
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