陈军红,张方举,谢若泽,徐伟芳,胡文军.泡沫铝填充薄壁金属管结构冲击吸能特性研究[J].包装工程,2022,43(11):154-160.
CHEN Jun-hong,ZHANG Fang-ju,XIE Ruo-ze,XU Wei-fang,HU Wen-jun.Impact Energy Absorption Characteristics of Thin-walled Metallic Circular Tube Structure with Aluminium Foam Filler[J].Packaging Engineering,2022,43(11):154-160. |
| 泡沫铝填充薄壁金属管结构冲击吸能特性研究 |
| Impact Energy Absorption Characteristics of Thin-walled Metallic Circular Tube Structure with Aluminium Foam Filler |
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| DOI：10.19554/j.cnki.1001-3563.2022.11.020 |
| 中文关键词: 泡沫铝 薄壁金属管结构 能量吸收 冲击加载 |
| 英文关键词: aluminium foam thin-walled metallic circular tube structure energy absorption impact loading |
| 基金项目:国家自然科学基金(11602257，11572299) |
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| 中文摘要: |
| 目的 为了研究静动态加载下泡沫铝填充薄壁金属管结构吸能特性随泡沫铝密度的变化规律。方法 利用材料试验机对3种不同密度的泡沫铝填充薄壁金属管结构进行准静态压缩，利用Taylor–Hopkinson实验装置对相同结构进行动态压缩实验，基于电测和光测法获得结构的静动态压缩载荷位移曲线，对载荷位移曲线进行积分得到结构的静动态吸能特性。结果 准静态压缩下，随着泡沫铝密度的增加，泡沫铝填充薄壁管结构能量吸收能力近似成指数增加。动态压缩下，结构能量吸收能力随泡沫铝密度增加先保持不变后增加。结论 准静态压缩下，在薄壁金属管中添加泡沫铝能明显增加泡沫铝填充薄壁金属管结构能量吸收能力，但在动态压缩下，低密度泡沫铝的添加无益于增加结构的能量吸收能力，为增加薄壁金属管的吸能能力需要求泡沫铝的密度超过一定值。 |
| 英文摘要: |
| This paper is to study the change law of the energy absorption characteristics of thin-walled metallic circular tube structure with aluminium foam filler under static and dynamic loading. The quasi-static compression of three kinds of thin-walled metallic circular tube structure with aluminium foam filler with different densities was carried out by the material test machine, and the dynamic compression experiment of the same structure was carried out by the Taylor–Hopkinson experimental device, and static and dynamic compressive load-displacement curves of the structure were obtained based on the electrical and optical measurement methods, and the static and dynamic energy absorption characteristics of the structure were obtained by integrating the load-displacement curves. Under quasi-static compression, with the increase of the density of aluminum foam, the energy absorption capacity of the thin-walled metallic circular tube structure with aluminium foam filler increases at an exponential rate. Under dynamic compression, the energy absorption capacity of the structure remains unchanged at first and then increases with the increase of the density of aluminum foam. Under quasi-static compression, the addition of aluminum foam to the thin-walled metallic circular tube can significantly increase the energy absorption capacity of the thin-walled metallic circular tube structure with aluminium foam filler, but under dynamic compression, the addition of low-density aluminum foam is not beneficial to increase the energy absorption capacity of the structure. In order to increase the energy absorption capacity of the thin-walled metallic circular tube, the density of the aluminium foam needs to exceed a certain value. |
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