Flexural and interlaminar shear response of novel methylmethacrylate composites reinforced with high-performance fibres

IF 5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Polymer Testing Pub Date : 2024-09-18 DOI:10.1016/j.polymertesting.2024.108578

Aswani Kumar Bandaru , Jayaram R. Pothnis , Alexandre Portela , Raghavendra Gujjala , Hong Ma , Ronan M. O'Higgins

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Abstract

This experimental work presents a comparative study on the mechanical behaviour of novel infusible methylmethacrylate matrix (Elium®) composites reinforced with different types of high-performance fibres. A vacuum-assisted resin infusion process was employed to fabricate the laminates using carbon, basalt, Kevlar®, and high molecular weight polyethene (UHMWPE) fibres. Flexural and interlaminar shear properties of the composites were evaluated. Test results revealed that carbon fibre composites had superior flexural strength, stiffness and interlaminar shear stress as compared to the other composites tested. Further, composites containing Kevlar and UHMWPE fibres demonstrated significantly higher flexural strains to failure. Post-testing, specimens were examined using scanning electron microscopy (SEM). Microscopy revealed possible interfacial interaction differences based on the reinforcement fibre type, which was further confirmed by an analytical approach for analysing the flexural behaviour of various types of composites. The sequence of damage progression in specimens was also analysed.

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用高性能纤维增强的新型甲基丙烯酸甲酯复合材料的挠曲和层间剪切响应

本实验对使用不同类型的高性能纤维增强的新型可灌注甲基丙烯酸甲酯基（Elium®）复合材料的机械性能进行了比较研究。该研究采用真空辅助树脂灌注工艺，使用碳纤维、玄武岩纤维、Kevlar® 纤维和高分子量聚乙烯（UHMWPE）纤维制造层压板。对复合材料的挠曲和层间剪切性能进行了评估。测试结果表明，碳纤维复合材料的抗弯强度、刚度和层间剪切应力均优于其他测试复合材料。此外，含有 Kevlar 纤维和超高分子量聚乙烯纤维的复合材料的挠曲破坏应变明显更高。测试后，使用扫描电子显微镜（SEM）对试样进行了检查。显微镜检查发现，根据增强纤维的类型，界面相互作用可能存在差异，这一点通过分析各种类型复合材料弯曲行为的分析方法得到了进一步证实。此外，还分析了试样的损伤发展顺序。

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来源期刊

Polymer Testing 工程技术-材料科学：表征与测试

CiteScore

10.70

自引率

5.90%

发文量

328

审稿时长

44 days

期刊介绍： Polymer Testing focuses on the testing, analysis and characterization of polymer materials, including both synthetic and natural or biobased polymers. Novel testing methods and the testing of novel polymeric materials in bulk, solution and dispersion is covered. In addition, we welcome the submission of the testing of polymeric materials for a wide range of applications and industrial products as well as nanoscale characterization. The scope includes but is not limited to the following main topics: Novel testing methods and Chemical analysis • mechanical, thermal, electrical, chemical, imaging, spectroscopy, scattering and rheology Physical properties and behaviour of novel polymer systems • nanoscale properties, morphology, transport properties Degradation and recycling of polymeric materials when combined with novel testing or characterization methods • degradation, biodegradation, ageing and fire retardancy Modelling and Simulation work will be only considered when it is linked to new or previously published experimental results.