Impact response and compression-after-impact properties of foam-core sandwich composites incorporating scrap tyre rubber particles

IF 3.5 3区材料科学 Q1 ENGINEERING, MECHANICAL

Journal of Sandwich Structures & Materials Pub Date : 2024-09-07 DOI:10.1177/10996362241282864

Nathaphon Buddhacosa, Matthew Ibrahim, Chananya Charnsethikul, Parichamon Santivongskul, Akbar Khatibi, Raj Das, Everson Kandare

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Abstract

Integrating scrap rubber particles as fillers into polymer matrix composites offers a cost effective and environmentally sustainable pathway to manage tyre waste through the creation of value-added products. This research explores the low-velocity impact (LVI) response and compression after impact (CAI) properties of rubberised foam-core glass fibre-reinforced epoxy (GFRE) sandwich composites. Syntactic foam cores integrated with rubber particles were manufactured using vacuum-assisted resin transfer moulding (VARTM). The compression properties of rubberised foam core, vital for resisting impact damage during LVI, were examined. Results show more than 40% reduction in compression strength and modulus of the syntactic foam upon the inclusion of 33 wt.% rubber particles. The LVI response and residual compression properties of rubberised foam-core composites were also evaluated. Rubberised foam cores caused a marginal reduction in the peak impact force and led to approximately 60% reduction in the delamination area. The pre-impact compression strength was unaffected by rubber particles within the core as the GFRE face sheets carried most of the compression load. Post-impact compression strength was slightly higher in rubberised foam-core composites due to reduced delamination. Digital Image Correlation (DIC) analysis tracking of the strain evolution during CAI experiments revealed the stress-raising effect of the impact damaged region. This study showcases sustainable scrap tyre management through the inclusion of rubber particles into foam-core composites without substantially reducing in-plane compression properties before or after low-velocity impact.

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含有报废轮胎橡胶颗粒的泡沫芯材夹层复合材料的冲击响应和冲击后压缩性能

将报废橡胶颗粒作为填料整合到聚合物基复合材料中，为通过创造高附加值产品来管理轮胎废弃物提供了一条具有成本效益和环境可持续性的途径。本研究探讨了橡胶泡沫夹芯玻璃纤维增强环氧树脂（GFRE）夹层复合材料的低速冲击（LVI）响应和冲击后压缩（CAI）特性。使用真空辅助树脂传递模塑（VARTM）技术制造了含有橡胶颗粒的合成泡沫芯材。橡胶泡沫芯材的压缩性能对抵抗 LVI 期间的冲击破坏至关重要，对其进行了检测。结果表明，加入 33 wt.% 的橡胶颗粒后，合成泡沫的压缩强度和模量降低了 40% 以上。此外，还对橡胶泡沫芯材复合材料的 LVI 响应和残余压缩特性进行了评估。橡胶泡沫芯材使冲击力峰值略有降低，并使分层面积减少了约 60%。由于 GFRE 面板承受了大部分压缩载荷，因此冲击前压缩强度不受夹芯中橡胶颗粒的影响。由于分层减少，橡胶泡沫芯材复合材料的冲击后压缩强度略高。对 CAI 实验期间应变演变的数字图像相关性（DIC）分析跟踪显示了冲击受损区域的应力提升效应。这项研究通过在泡沫芯材复合材料中加入橡胶颗粒，展示了可持续的报废轮胎管理，而不会在低速冲击前后大幅降低平面压缩性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sandwich Structures & Materials 工程技术-材料科学：表征与测试

CiteScore

9.60

自引率

2.60%

发文量

审稿时长

7 months

期刊介绍： The Journal of Sandwich Structures and Materials is an international peer reviewed journal that provides a means of communication to fellow engineers and scientists by providing an archival record of developments in the science, technology, and professional practices of sandwich construction throughout the world. This journal is a member of the Committee on Publication Ethics (COPE).