Investigating the low velocity impact response of additively manufactured tri-material composite structure with application on helmet

IF 3.6 4区材料科学 Q2 MATERIALS SCIENCE, COMPOSITES

Journal of Thermoplastic Composite Materials Pub Date : 2024-07-30 DOI:10.1177/08927057241268839

Ammar M Al-Areqi, Subbarayan Sivasankaran, Bandar A. Aloyaydi, Fahad A. Al-Mufadi

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引用次数: 0

Abstract

Additively manufactured composite structures can be utilized in the production of engineering materials with enhanced mechanical properties. In this work, mono-, bi-, and tri-material structures (MMS, BMS, and TMS, respectively) were fabricated using additively manufactured PLA (poly-lactic acid) lattice frames embedded with Polyurethane (PU) foam and milled glass fibers (MGFs). TMS samples were reinforced with MGFs at 1.25, 2.5, 3.75, and 5.0 vol%, indicated as TMS-1, TMS-2, TMS-3, and TMS-4, respectively. The mechanical response of these composite structures was tested by applying a low-velocity impact load. The effects of MGF content and variations in applied impact energy, and variation in microstructure on the composite samples were investigated. Results revealed an enhanced mechanical response of TMS samples compared to MMS and BMS. Additionally, with increasing applied impact energy, the TMS samples showed an improved corresponding response, with a peak absorbed energy of 96.03% of the applied 60 J energy. Furthermore, to study the applicability of the composite structures in real-life applications, helmet prototypes made of MMS, BMS, and TMS were designed and tested under the applied low-velocity load, showing an improved response of TMS helmet samples compared to the other composite structures.

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研究快速成型三材料复合结构的低速冲击响应，并将其应用于头盔

快速成型复合材料结构可用于生产具有更强机械性能的工程材料。在这项工作中，使用嵌入聚氨酯（PU）泡沫和研磨玻璃纤维（MGF）的添加剂制造聚乳酸（PLA）晶格框架，分别制造了单材料、双材料和三材料结构（MMS、BMS 和 TMS）。用 1.25、2.5、3.75 和 5.0 Vol% 的 MGF 增强了 TMS 样品，分别称为 TMS-1、TMS-2、TMS-3 和 TMS-4。通过施加低速冲击载荷测试了这些复合材料结构的机械响应。研究了 MGF 含量、施加的冲击能量变化以及微观结构变化对复合材料样品的影响。结果表明，与 MMS 和 BMS 相比，TMS 样品的机械响应更强。此外，随着施加冲击能量的增加，TMS 样品的相应响应也有所改善，吸收能量峰值为施加 60 J 能量的 96.03%。此外，为了研究复合结构在实际应用中的适用性，我们设计了由 MMS、BMS 和 TMS 制成的头盔原型，并在施加的低速载荷下进行了测试，结果表明与其他复合结构相比，TMS 头盔样品的响应更好。

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

Journal of Thermoplastic Composite Materials 工程技术-材料科学：复合

CiteScore

8.00

自引率

18.20%

发文量

104

审稿时长

5.9 months

期刊介绍： The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).