STUDYONDEFORMATIONFORMANDENERGYABSORPTIONCHARACTERISTICS OF METAL THIN-WALLED SANDWICH STRUCTURE (MT)

ZOU GuangPing; YAN AnShi; CHANG ZhongLiang; LI YinChen; WU SongYang; ZHANG ZhiJun

doi:10.16579/j.issn.1001.9669.2023.05.032

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STUDYONDEFORMATIONFORMANDENERGYABSORPTIONCHARACTERISTICS OF METAL THIN-WALLED SANDWICH STRUCTURE (MT)

更新时间：2023-11-16

- STUDYONDEFORMATIONFORMANDENERGYABSORPTIONCHARACTERISTICS OF METAL THIN-WALLED SANDWICH STRUCTURE (MT)
- Journal of Mechanical Strength Issue 5, Pages: 1249-1253(2023)
- 作者机构：
  
  1. 哈尔滨工程大学航天与建筑工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2023.05.032
  CLC：
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ZOU GuangPing, YAN AnShi, CHANG ZhongLiang, et al. STUDYONDEFORMATIONFORMANDENERGYABSORPTIONCHARACTERISTICS OF METAL THIN-WALLED SANDWICH STRUCTURE (MT). [J]. Journal of Mechanical Strength (5):1249-1253(2023)
DOI：

ZOU GuangPing, YAN AnShi, CHANG ZhongLiang, et al. STUDYONDEFORMATIONFORMANDENERGYABSORPTIONCHARACTERISTICS OF METAL THIN-WALLED SANDWICH STRUCTURE (MT). [J]. Journal of Mechanical Strength (5):1249-1253(2023) DOI： 10.16579/j.issn.1001.9669.2023.05.032.

摘要

引入了一种填充聚氨酯的薄壁夹层结构，基于聚氨酯的超弹性本构模型探究了该结构的吸能特性，并与单层以及双层薄壁钢圆管对比。对三种结构施加准静态载荷与动态载荷，得出了三种结构的变形模式、吸能特性参数、压溃力大小、行程效率等参数。结果显示，准静态加载下填充聚氨酯的薄壁圆管产生轴对称变形，平均载荷以及比吸能都高于其余两种结构；动态加载下填充聚氨酯的薄壁圆管行程效率较小，但平均载荷以及比吸能都高于另外两种结构。

Abstract

A thin-walled sandwich structure filled with polyurethane is introduced. Based on the hyperelastic constitutive model of polyurethane, the energy absorption characteristics of the structure are studied and compared with single-layer and double-layer thin-walled steel circular tubes. Applying quasi-static load and dynamic load to the three structures, the deformation mode, energy absorption characteristic parameters, crushing force and stroke efficiency of the three structures are obtained. The results show that under quasi-static loading, the thin-walled circular tube filled with polyurethane produces axisymmetric deformation, and the average load and specific energy absorption are higher than the other two structures. Under dynamic loading, the stroke efficiency of thin-walled circular tube filled with polyurethane is small, but the average load and specific energy absorption are higher than the other two structures.

关键词

薄壁夹层结构聚氨酯比吸能压溃力有限元分析

Keywords

Thin walled sandwich structurePolyurethaneSpecific energy absorptionCrushing forceFinite element analysis

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