Natural fibre-reinforced polymer composites (NFRPC) are versatile and applicable materials for structural applications that require durability and reliability under various forces. However, these composites are susceptible to crack formation when exposed to low-velocity impact (LVI) loads, compromising their functionality and performance. Therefore, it is essential to investigate the influence of LVI on NFRPC and their characterization methods, testing standards, and failure mechanisms. This paper reviews the latest research and development on the characterization, testing, and modelling of NFRPCs under LVI loads. It also explores the impact behaviour of various natural fibres, such as kenaf, bamboo, mallow, buriti, and curaua, and the effect of fibre hybridization and nanofiller incorporation on the LVI response of NFRPCs. The paper evaluates the properties, failure mechanisms, and applications of NFRPCs in relation to LVI resistance. The paper provides useful information for developing advanced composite systems and achieving material efficiency for various structural applications. Finally, it highlights the potential applications and challenges of NFRPC as LVI-resistant materials for advanced composite systems.

中文翻译：

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天然纤维增强聚合物复合材料的低速冲击性能：综述


天然纤维增强聚合物复合材料 (NFRPC) 是一种通用且适用的材料，适用于需要在各种力下具有耐用性和可靠性的结构应用。然而，这些复合材料在受到低速冲击 (LVI) 载荷时容易形成裂纹，从而损害其功能和性能。因此，有必要研究LVI对NFRPC的影响及其表征方法、测试标准和失效机制。本文回顾了 LVI 负载下 NFRPC 的表征、测试和建模的最新研究和进展。它还探讨了各种天然纤维（如洋麻、竹子、锦葵、布里蒂和库拉阿）的影响行为，以及纤维杂化和纳米填料掺入对 NFRPC 的 LVI 响应的影响。本文评估了 NFRPC 的特性、失效机制和与 LVI 抵抗相关的应用。该论文为开发先进复合材料系统和实现各种结构应用的材料效率提供了有用的信息。最后，它强调了 NFRPC 作为先进复合材料系统的抗 LVI 材料的潜在应用和挑战。