A study of crashworthiness performance in thin‐walled multi‐cell tubes 3D‐printed from different polymers

IF 2.7 3区 化学 Q2 POLYMER SCIENCE Journal of Applied Polymer Science Pub Date : 2024-09-18 DOI:10.1002/app.56287
Merve Tunay, Alperen Bardakci
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Abstract

Multicellular, thin‐walled impact tubes have been intensely studied and used in various engineering fields in recent years due to their lightweight, high performance, ease of application, superior energy absorption, and stable deformation characteristics. In this study, energy absorption, crashworthiness performances, and deformation properties of thin‐walled structures manufactured from polylactic acid (PLA+) and acrylonitrile butadiene styrene (ABS) using fused deposition modeling (FDM) technology were compared under quasi‐static axial compression. Thin‐walled structures consist of multicellular tubes connected by concentric corner‐edge connections with square and hexagonal cross‐sections. Experimental testing outcomes indicate that the energy absorption capacity increases with increasing the number of corners in multicellular structures. The tubes with square wall‐to‐wall (S‐WW) and hexagonal wall‐to‐wall (H‐WW) cross‐sections exhibit superior crashworthiness performance compared to other cross‐sections. Based on the experimental results, the absorbed energy by WW patterned PLA+ square tubes are 19%, 7%, and 46% more than that of wall‐to‐corner (WC), corner‐to‐wall (CW), and corner‐to‐corner (CC) patterned tubes, respectively, while it is 11%, 19%, and 80% more in hexagonal cross‐section tubes, respectively. This study provides an informative reference for easier applicability of multicellular energy‐absorbing structures with 3D‐print and the design of corner‐edge connections of internal connections in multicellular structures.

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不同聚合物 3D 打印薄壁多孔管的防撞性能研究
近年来,多孔薄壁抗冲击管因其轻质、高性能、易于应用、优异的能量吸收和稳定的变形特性而被广泛研究和应用于各个工程领域。本研究比较了在准静态轴向压缩条件下,由聚乳酸(PLA+)和丙烯腈-丁二烯-苯乙烯(ABS)采用熔融沉积成型(FDM)技术制造的薄壁结构的能量吸收、耐撞性能和变形特性。薄壁结构由多孔管组成,管子通过同心角边连接,横截面为正方形和六边形。实验测试结果表明,多孔结构的能量吸收能力随着角的数量增加而提高。与其他横截面相比,具有方形壁到壁(S-WW)和六边形壁到壁(H-WW)横截面的管材具有更优越的防撞性能。根据实验结果,WW 图案的聚乳酸+ 方管吸收的能量分别比壁到角(WC)、角到壁(CW)和角到角(CC)图案的方管多 19%、7% 和 46%,而六边形截面方管吸收的能量分别比壁到角(WC)、角到壁(CW)和角到角(CC)图案的方管多 11%、19% 和 80%。这项研究为三维打印多孔吸能结构的简易应用以及多孔结构内部连接的角边连接设计提供了参考。
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来源期刊
Journal of Applied Polymer Science
Journal of Applied Polymer Science 化学-高分子科学
CiteScore
5.70
自引率
10.00%
发文量
1280
审稿时长
2.7 months
期刊介绍: The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.
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Editorial Board, Aims & Scope, Table of Contents Editorial Board, Aims & Scope, Table of Contents Editorial Board, Aims & Scope, Table of Contents Editorial Board, Aims & Scope, Table of Contents Cover Image, Volume 141, Issue 43
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