Effect of reinforcement phases and post-cure temperature on adhesively bonded hybrid patch repair in indented glass/epoxy composite laminates

IF 2.9 4区材料科学 Q2 ENGINEERING, CHEMICAL Journal of Adhesion Pub Date : 2023-01-23 DOI:10.1080/00218464.2023.2169145

Shravan Kumar Chinta, D. S, B. G., H. R, N. B, S. C, S. M

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引用次数: 1

Abstract

ABSTRACT This paper focuses on the experimental investigation on the effect of different fiber reinforcement phases and post-cure temperature to improve the strength recovery of adhesively bonded patch repair in glass/epoxy composite laminates. The repair was performed on the site of damaged region in the laminates by using various configurations of patches such as chopped glass (CG), chopped glass/carbon (CGC), chopped glass/kevlar (CGK), ply-by-ply glass (PG), ply-by-ply glass/carbon (PGC), ply-by-ply glass/kevlar (PGK), stitched glass (SG), stitched glass/carbon (SGC), and stitched glass/kevlar (SGK). The result reveals that the SGK hybrid patch repaired laminates offered a strength recovery by 101.5% as compared with damaged laminates. Further, the SGK hybrid patch was subjected to post-cure temperatures of 50°C, 70°C, 90°C, and 110°C which were considered based on the glass transition temperature (Tg) of glass/epoxy laminates. The result shows that the SGK hybrid patch with a post-cured temperature of 50°C has equal strength with virgin laminates and the strength recovery was improved by 112.9% as compared with damaged laminates. This study concluded that the adhesively bonded hybrid patch repair with a post-cure temperature of 50°C can be used for various fiber-reinforced polymer (FRP) industries to repair laminated composites.

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增强相和固化后温度对压痕玻璃/环氧复合材料层合板粘接复合补片修复的影响

摘要本文主要研究了不同纤维增强相和固化后温度对提高玻璃/环氧复合材料层合板粘接补丁修复强度恢复的影响。在层合板的损伤部位，采用不同结构的补片，如碎玻璃(CG)、碎玻璃/碳(CGC)、碎玻璃/凯夫拉(CGK)、层合玻璃(PG)、层合玻璃/碳(PGC)、层合玻璃/凯夫拉(PGK)、缝玻璃(SG)、缝玻璃/碳(SGC)和缝玻璃/凯夫拉(SGK)进行修复。结果表明，SGK杂化贴片修复层合板的强度恢复比损伤层合板高101.5%。此外，SGK杂化贴片的固化后温度分别为50°C、70°C、90°C和110°C，这是基于玻璃/环氧层合板的玻璃化转变温度(Tg)考虑的。结果表明:经50℃后固化后的SGK杂化贴片强度与未固化层合板相当，强度回复率较损伤层合板提高112.9%;本研究认为，固化后温度为50℃的粘接复合贴片修复可用于各种纤维增强聚合物(FRP)行业的层合复合材料修复。

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来源期刊

Journal of Adhesion 工程技术-材料科学：综合

CiteScore

5.30

自引率

9.10%

发文量

审稿时长

1 months

期刊介绍： The Journal of Adhesion is dedicated to perpetuating understanding of the phenomenon of adhesion and its practical applications. The art of adhesion is maturing into a science that requires a broad, coordinated interdisciplinary effort to help illuminate its complex nature and numerous manifestations.