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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Flexural properties of glass and carbon fiber reinforced epoxy hybrid composites
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Flexural properties of glass and carbon fiber reinforced epoxy hybrid composites

机译：玻璃和碳纤维增强的环氧混杂复合材料的弯曲性能

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A study on the flexural properties of hybrid glass and carbon fiber reinforced epoxy composites is presented in this article. Three combinations of the carbon and glass fibers, i.e. S-2&T700S, S-2&TR30S and E&TR30S, were chosen to make hybrid composite specimens. Specimens were made by the hand lay-up process in an intra-ply configuration with varying degrees of glass fibers added to the surface of a carbon laminate. These specimens were then tested in the three-point bend configuration in accordance with ASTM D790-07 at a span to depth ratio of 32. The failure modes were examined under an optical microscope, and it was found that the dominant failure mode was compressive failure. The flexural behavior was also simulated using finite element analysis, and the flexural modulus, flexural strength and strain to failure were calculated. Both the experiments and finite element analysis suggest flexural modulus decreases with increasing percentage of glass fibers. Positive hybrid effects exist by substituting carbon fibers with glass fibers on the compressive surface.
机译：本文介绍了混合玻璃和碳纤维增强环氧复合材料的弯曲性能的研究。选择碳纤维和玻璃纤维的三种组合，即S-2＆T700S，S-2＆TR30S和E＆TR30S，制成混合复合材料试样。通过手工铺层工艺以层内构造制备样品，其中将不同程度的玻璃纤维添加到碳层压板的表面。然后按照ASTM D790-07在三点弯曲配置下对这些样品进行测试，其跨度与深度之比为32。在光学显微镜下检查破坏模式，发现主要破坏模式为压缩破坏。 。还使用有限元分析模拟了弯曲行为，并计算了弯曲模量，弯曲强度和破坏应变。实验和有限元分析均表明，弯曲模量随玻璃纤维百分比的增加而降低。通过在压缩表面上用玻璃纤维代替碳纤维，存在积极的混合效应。

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