用增材制造法制造的头盔样品内部吸能结构的实验研究--初步研究。

IF 0.8 4区 医学 Q4 BIOPHYSICS
Wojciech Toboła, Mateusz Papis, Dominik Jastrzębski, Rafał Perz
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引用次数: 0

摘要

目的:本研究旨在为自行车头盔开发一种吸能结构,以尽量减少碰撞对头部造成的伤害。研究小组探索了通过添加法生产的三种几何结构,并将它们的吸能特性与由发泡聚苯乙烯(EPS)泡沫制成的标准自行车头盔进行了比较:研究制备了三种几何结构(球形、蜂窝状和圆锥形)的样品和一个由 EPS 泡沫塑料制成的整体尺寸相同的自行车头盔碎片。使用气锤、活塞压缩机、铁砧、三轴加速度计和数据处理系统进行了实验室测试。每种结构都进行了三次碰撞试验,并分析了碰撞后铁砧的最大加速度和停止距离:研究发现,用增量法打印的聚乳酸(PLA)材料的能量吸收性能与头盔中使用的发泡聚苯乙烯(EPS)材料相当,甚至更好。吸能材料的几何结构对其效果起着至关重要的作用。球形样品的结果最有希望:研究得出的结论是,进一步研究使用熔融沉积建模(FDM)方法制造的吸能结构,将有助于自行车头盔的生产。研究结果表明,吸能材料的几何结构是影响其有效性的关键因素。研究结果表明,使用增量法打印的聚乳酸材料制成的球形结构可能是一种很有前途的自行车头盔设计,可最大限度地减少碰撞对头部造成的伤害。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental research of energy absorbing structures within helmet samples made with the additive manufacturing method - preliminary study.

Purpose: This study aimed to develop an energy-absorbing structure for bicycle helmets to minimize head injuries caused by collisions. The research team explored three geometric structures produced through additive methods and compares their energy absorption properties with a standard bicycle helmet made of Expanded Polystyrene (EPS) foam.

Methods: The study prepared samples of three geometric structures (a ball, a honeycomb and a conical shape) and a fragment of a bicycle helmet made of EPS foam with the same overall dimensions. Laboratory tests were conducted using a pneumatic hammer, piston compressor, anvil, triaxial accelerometer and data processing systems. Three crash tests were performed for each type of structure, and the anvil's maximum acceleration and stopping distance after the crash were analyzed.

Results: The study found that the energy absorption properties of the Polylactic Acid (PLA) material printed with the incremental method were comparable or better than those of the EPS material used in helmets. The geometric structure of the energy-absorbing material played a crucial role in its effectiveness. The most promising results were obtained for the ball samples.

Conclusions: The study concluded that further research on energy-absorbing structures made using the Fused Deposition Modeling (FDM) method could be useful in the production of bicycle helmets. The results show that the geometric structure of the energy-absorbing material is a crucial factor in its effectiveness. The findings suggest that the ballshaped structure made with PLA material printed using the incremental method could be a promising design for bicycle helmets to minimize head injuries caused by collisions.

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来源期刊
Acta of bioengineering and biomechanics
Acta of bioengineering and biomechanics BIOPHYSICS-ENGINEERING, BIOMEDICAL
CiteScore
2.10
自引率
10.00%
发文量
0
期刊介绍: Acta of Bioengineering and Biomechanics is a platform allowing presentation of investigations results, exchange of ideas and experiences among researchers with technical and medical background. Papers published in Acta of Bioengineering and Biomechanics may cover a wide range of topics in biomechanics, including, but not limited to: Tissue Biomechanics, Orthopedic Biomechanics, Biomaterials, Sport Biomechanics.
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