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用于汽车车架的亚麻-玻璃混合聚合物复合材料的层间剪切强度:数值模拟与实验分析

Inter Laminar Shear Strength of Flax-Glass Hybrid Polymer Composites for Automotive Frame: Numerical Modelling and Experimental Analysis.

作者信息

Akshat Tegginamath, Petru Michal, Mishra Rajesh Kumar

机构信息

Department of Machine Parts and Mechanism, Faculty of Mechanical Engineering, Technical University of Liberec, Studentská 1402/2, 461 17 Liberec, Czech Republic.

Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic.

出版信息

Materials (Basel). 2025 Aug 17;18(16):3852. doi: 10.3390/ma18163852.

DOI:10.3390/ma18163852
PMID:40870170
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12387216/
Abstract

This study deals with the mechanical performance in the case of hybrid polymer composites developed from sandwiched reinforcements using natural fibre and glass fibre-based fabrics. The composites developed by using different combinations and arrangements of the glass and flax fabrics were tested for the interlaminar shear strength (ILSS). Finite element analysis based on ANSYS was used to determine the ILSS for the hybrid composites. Further, experimental testing of the ILSS was carried out in order to validate the predicted performance. The comparison of simulated values with the tested values showed percentage error values ranging from 0.106% to 6.25%. The minor error between the tested and simulated values can be due to the presence of very small imperfections in the composite, like the presence of voids, which could potentially be introduced in the composite while manufacturing the samples. Microscopic analysis confirmed the fracture in between the layers and interfacial debonding between the fibre and the matrix. It was found that the flax fibre tends to break earlier as compared to the glass component, which has much better mechanical performance. The findings are important for understanding the performance of hybrid composites in real loading conditions in automotive frames and other similar applications.

摘要

本研究涉及由天然纤维和玻璃纤维织物制成的夹芯增强材料所开发的混杂聚合物复合材料的力学性能。对采用玻璃纤维织物和亚麻织物的不同组合与排列方式所开发的复合材料进行了层间剪切强度(ILSS)测试。基于ANSYS的有限元分析用于确定混杂复合材料的层间剪切强度。此外,为了验证预测性能,还对层间剪切强度进行了实验测试。模拟值与测试值的比较显示,百分比误差值在0.106%至6.25%之间。测试值与模拟值之间的微小误差可能是由于复合材料中存在非常小的缺陷,如孔隙,这些孔隙可能在制造样品时引入到复合材料中。微观分析证实了层间的断裂以及纤维与基体之间的界面脱粘。研究发现,与具有更好力学性能的玻璃纤维组分相比,亚麻纤维往往更早断裂。这些发现对于理解混杂复合材料在汽车车架及其他类似应用的实际载荷条件下的性能具有重要意义。

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