Hybridization effect of Kevlar and glass fiber on carbon/epoxy composites to enhance the damage strength under low velocity impact. Part II: Numerical simulations

IF 1.8 4区工程技术 Q3 ENGINEERING, MECHANICAL

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-09-10 DOI:10.1177/09544062241277733

Kiran Kaware, Mangesh Kotambkar

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引用次数: 0

Abstract

The research outlined in this paper extends the authors previous work to explore the impact resistance enhancement of CFRP composites through numerical simulations, focusing on the incorporation of a hybrid combination of Kevlar and glass fibers. Experimental drop weight low velocity impact and advanced NDT tests on CFRP and hybrid laminates were carried out in previous work. The current work focuses on the analysis of the dynamic behavior of hybrid composite subjected to LVI by numerical simulation methods. The numerical simulations have been validated with experiments and the damage area of numerical and experimental tests were compared. CFRP and hybrid laminates were modeled using Abaqus/Explicit FEA software to investigate the damage modes and mechanisms. The history curves of simulation results such as load/displacement-time etc. compared with experimental. Results show that incorporating 25% Kevlar fibers on the outer layer of the CFRP, denoted as [01K/06C/01K] resulted in a reduction of laminate deflection by 63.64%. Additionally, the stress distribution expanded over a larger area. A good concurrence between the simulation and experimental findings has been established, indicating that the modeling approach is suitable for conducting further parametric investigations.

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Kevlar 纤维和玻璃纤维对碳/环氧复合材料的杂化效应可增强低速冲击下的破坏强度。第二部分：数值模拟

本文概述的研究扩展了作者之前的工作，即通过数值模拟探索 CFRP 复合材料的抗冲击性增强，重点是加入 Kevlar 纤维和玻璃纤维的混合组合。在之前的工作中，对 CFRP 和混合层压材料进行了落重低速冲击试验和先进的无损检测试验。当前工作的重点是通过数值模拟方法分析混合复合材料在低速冲击下的动态行为。数值模拟与实验进行了验证，并比较了数值测试和实验测试的损伤面积。使用 Abaqus/Explicit 有限元分析软件对 CFRP 和混合层压板进行建模，以研究其损伤模式和机制。载荷/位移-时间等模拟结果的历史曲线与实验结果进行了比较。结果表明，在 CFRP 外层加入 25% 的 Kevlar 纤维（表示为 [01K/06C/01K]）后，层压板挠度减少了 63.64%。此外，应力分布也扩大了面积。模拟结果与实验结果的一致性很好，表明该建模方法适合于开展进一步的参数研究。

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

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 工程技术-工程：机械

CiteScore

3.80

自引率

10.00%

发文量

625

审稿时长

4.3 months

期刊介绍： The Journal of Mechanical Engineering Science advances the understanding of both the fundamentals of engineering science and its application to the solution of challenges and problems in engineering.