Sustainable sandwich plates: investigating the dynamic and tensile properties of jute fibre-reinforced face layers with TiO2-infused tea waste epoxy cores

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Bulletin of Materials Science Pub Date : 2025-08-20 DOI:10.1007/s12034-025-03450-1

Dhaneshwar Prasad Sahu, Ramyaranjan Das, Sukesh Chandra Mohanty

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Abstract

This study presents an experimental and numerical investigation of the dynamic behaviour of sandwich plate consists of jute fibre-reinforced face layers and TiO₂-incorporated tea waste epoxy core layers. The core layers are reinforced with varying amounts of weight percentages of TiO₂ nanofiller (0%, 1%, 1.5% and 2%) to assess their impact on the tensile strength and free vibration responses. Tensile properties are evaluated using uniaxial tensile tests according to the ASTM D 3039 standard. The natural frequencies of the sandwich plates are obtained experimentally through experimental modal analysis using a fast fourier transform (FFT) analyser with PULSE Lab software (Bruel & Kjaer). These experimental findings are validated against numerical results obtained from the finite element software ABAQUS, where material properties are derived from the tensile tests are used as inputs. Additionally, numerical simulations are conducted to explore the effects of varying boundary conditions, aspect ratios, core thicknesses, face l ayer thickness ratios, and ply orientations (symmetric and antisymmetric) on the dynamic behaviour of the sandwich plates. Comparison with published literature confirms the accuracy and reliability of the proposed sandwich structures. The results provide insights into optimizing the dynamic performance of jute fibre-reinforced composite structures with sustainable tea waste-based epoxy cores for lightweight engineering applications. The optimum performance was observed at 2 wt% TiO₂ loading, which showed the best compromise between improved tensile strength and enhanced vibration damping without agglomeration effects seen at higher concentrations.

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可持续夹层板：研究黄麻纤维增强面层与注入二氧化钛的茶废环氧树脂芯的动态和拉伸性能

本文对黄麻纤维增强面层和含二氧化钛的茶废环氧树脂芯层组成的夹层板的动力特性进行了实验和数值研究。通过添加不同重量百分比的TiO2纳米填料（0%、1%、1.5%和2%）来增强核心层，以评估其对拉伸强度和自由振动响应的影响。拉伸性能根据ASTM D 3039标准使用单轴拉伸试验进行评估。利用脉冲实验室软件（Bruel & & Kjaer）的快速傅里叶变换（FFT）分析仪进行实验模态分析，得到夹层板的固有频率。这些实验结果与有限元软件ABAQUS获得的数值结果进行了验证，其中材料性能来源于拉伸试验作为输入。此外，还进行了数值模拟，探讨了不同的边界条件、纵横比、芯层厚度、面层厚度比和铺层方向（对称和反对称）对夹层板动态行为的影响。与已发表的文献进行比较，证实了所提出的夹层结构的准确性和可靠性。该结果为优化黄麻纤维增强复合材料结构的动态性能提供了见解，该结构具有可持续的茶渣环氧树脂芯，用于轻量化工程应用。TiO2负载为2 wt%时，材料的性能达到最佳，在较高的TiO2浓度下，材料的抗拉强度和减振性能得到了最佳的平衡，且没有团聚效应。

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来源期刊

Bulletin of Materials Science 工程技术-材料科学：综合

CiteScore

3.40

自引率

5.60%

发文量

209

审稿时长

11.5 months

期刊介绍： The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.