Virtual model of kenaf bast fibres based on solid mechanics and finite element study

IF 5.3 1区农林科学 Q1 AGRICULTURAL ENGINEERING Biosystems Engineering Pub Date : 2025-03-01 Epub Date: 2025-02-03 DOI:10.1016/j.biosystemseng.2025.01.013

Suhaiza Hanim Hanipah , Nur Farah Najia C. Hassan , Ahmad Tarmezee Talib , Mohd Afandi P Mohammed , Minato Wakisaka , Zalizawati Abdullah

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Abstract

Kenaf fibres are gaining traction as a promising eco-friendly material due to their renewability and impressive mechanical strength. This study explored kenaf's potential to replace traditional materials by investigating its microstructure using advanced techniques like Scanning Electron Microscopy, X-Ray Microtomography and Atomic Force Microscopy. These analyses were complimented with tensile tests to investigate the complex mechanical behaviour of kenaf fibres. The experimental results revealed the microstructure of kenaf fibres, showing no significant differences over the fibre width and longitudinal direction. Tensile tests results from tensile-cyclic and tensile-relaxation modes, suggest elasto-viscoelastic behaviour of the fibres. A finite element model to virtually represent kenaf fibres was developed using the experimental information. Model simulations under tensile, compression and shear deformations suggest that damage was more pronounced under shear and compression conditions compared to tensile mode.

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基于实体力学和有限元研究的红麻纤维虚拟模型

由于其可再生性和令人印象深刻的机械强度，红麻纤维作为一种有前途的环保材料越来越受到关注。本研究通过使用扫描电子显微镜、x射线显微断层扫描和原子力显微镜等先进技术研究红麻的微观结构，探索了红麻取代传统材料的潜力。这些分析补充了拉伸试验，以研究红麻纤维的复杂力学行为。实验结果表明，红麻纤维的微观结构在纤维宽度和纵向上没有显著差异。拉伸循环和拉伸松弛模式的拉伸试验结果表明纤维的弹粘弹性行为。利用实验资料，建立了一个模拟红麻纤维的有限元模型。在拉伸、压缩和剪切变形下的模型模拟表明，与拉伸模式相比，剪切和压缩条件下的损伤更为明显。

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来源期刊

Biosystems Engineering 农林科学-农业工程

CiteScore

10.60

自引率

7.80%

发文量

239

审稿时长

53 days

期刊介绍： Biosystems Engineering publishes research in engineering and the physical sciences that represent advances in understanding or modelling of the performance of biological systems for sustainable developments in land use and the environment, agriculture and amenity, bioproduction processes and the food chain. The subject matter of the journal reflects the wide range and interdisciplinary nature of research in engineering for biological systems.