An Experimental Investigation on Low-velocity Impact Response of Abaca/Epoxy Bio-composite

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ABSTRACT

在汽車行業的許多結構和非結構應用中，NFRC（天然纖維增強複合材料）被證明是現有玻璃/碳纖維增強複合材料的潛在材料替代品。本文介紹了兩種不同取向 [90°/0°/0°/90°] 和 [45°/0°/0°/45 °]，使用錐形衝擊器承受 10.24 J 的衝擊能量。基於作為能量吸收處理的力-時間響應和衝擊能量-時間歷史來評估它們的性能和損傷特性。還進行了掃描電子顯微鏡 (SEM) 分析以研究斷裂表面的微觀結構信息並與最可能的故障原因相關聯。照片和 SEM 圖像證實了纖維主要失效。實驗結果表明，與交叉層相比，角層取向複合材料吸收了更多的能量。發現交叉層比較硬，因為它不太容易損壞.

Highlights

• Drop weight impact test has been carried out on abaca/epoxy composites.

• Discussed the effect of ply-orientation on impact force and energy absorption.

• By placing 45° ply on the impact surface, the angle-ply sample withstood 10.94% more impact force than cross-ply.

• Post-impact characteristics reveal the dominant failure in the cross-ply- and angle-ply-oriented samples.

Acknowledgments

The authors would like to thank SASTRA Deemed University for providing the composite fabrication facility, SEM analysis, and Visvesvaraya College of Engineering, Bengaluru, India, for providing the testing facilities, respectively. The authors also extend their gratitude toward Go Green Pvt Ltd. and Herenba Instruments & Engineers, Chennai, India, for providing the raw materials.

The first author would like to acknowledge and express gratitude to SASTRA Deemed to be University for funding his full-time Research Assistant position.

Authors contribution

Mahaboob Subhani Shaik manufactured the composite samples, prepared samples and arranged for performing experiments and data collection. The experimental plan development, data analysis and interpretation were carried out along with second author, Dr. S. Hariharan. This paper was developed with equal contributions from both authors.

Declaration of competing interest

The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Financial support

This work has done without any financial support.