Toughness, flexural, damping and interfacial properties of hybridized GFRE composites with MWCNTs
Toughness, flexural, damping and interfacial properties of hybridized GFRE composites with MWCNTs
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DOI：
10.1016/j.compositesa.2014.10.008
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发表时间：
2015-01-01
影响因子：
8.7
通讯作者：
Khashaba, U. A.
中科院分区：
文献类型：
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作者：
Khashaba, U. A.
由于纤维增强复合材料阻尼性能的提高会影响其它力学性能，因此，本文研究了多壁碳纳米管（MWCNT）对混杂玻璃纤维增强环氧树脂（GFRE）复合材料界面粘结强度、弯曲强度和刚度、韧性以及阻尼性能的影响。使用纳米相环氧树脂以[0/+/-45/90]（s）和[90/+/-45/0]（s）堆叠顺序杂化单向和准各向同性GFRE复合材料。从杂化复合材料的界面特性的结果表明，改善高达30%的控制层压板相比。GFRE层压板与MWCNTs的杂化导致弯曲和储能模量降低，弯曲强度、韧性、固有频率和阻尼比增加。静态弯曲模量和动态储能模量之间的相关系数为0.9985。在[0/+/- 45/90]（s）、铺层顺序和阻尼比下，准各向同性层合板的弯曲强度、弯曲模量、储能模量和固有频率最高。(C)2014爱思唯尔有限公司版权所有。
As the improved damping in fiber-reinforced composites can affect the other mechanical properties, therefore, the aim of this work is to investigate the effect of multiwall carbon nanotube (MWCNT) on the interfacial bond strength, flexural strength and stiffness, toughness and damping properties of hybridized glass-fiber reinforced epoxy (GFRE) composites. Nanophased epoxy resin was used to hybridize unidirectional and quasi-isotropic GFRE composites with [0/+/- 45/90](s), and [90/+/- 45/0](s) stacking sequences. Results from the interfacial characterizations of the hybridized composites showed improvement up to 30% compared to the control laminates. Hybridization of GFRE laminates with MWCNTs leads to decreasing the flexural and storage moduli, increasing flexural strength, toughness, natural frequencies and damping ratio. A high correlation coefficient of 0.9985 was obtained between static flexural and dynamic storage moduli. The highest flexural strength, flexural and storage moduli and natural frequency of quasi-isotropic laminate were observed for [0/+/- 45/90](s), stacking sequence and vice versa for damping ratio. (C) 2014 Elsevier Ltd. All rights reserved.