CRASHWORTHINESS OF SQUARE TUBE WITH REDUCED THICKNESS AT IMPACTED END AND DENT UNDER AXIAL IMPACT

WANG Zhen; JI ZhenHua; FENG XianZhang; JIANG ZhiQiang

doi:10.16579/j.issn.1001.9669.2017.01.036

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CRASHWORTHINESS OF SQUARE TUBE WITH REDUCED THICKNESS AT IMPACTED END AND DENT UNDER AXIAL IMPACT

更新时间：2022-09-22

- CRASHWORTHINESS OF SQUARE TUBE WITH REDUCED THICKNESS AT IMPACTED END AND DENT UNDER AXIAL IMPACT
- Journal of Mechanical Strength Vol. 39, Issue 1, Pages: 210-213(2017)
- 作者机构：
  
  1. 郑州航空工业管理学院机电工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.01.036
  CLC：
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WANG Zhen, JI ZhenHua, FENG XianZhang, et al. CRASHWORTHINESS OF SQUARE TUBE WITH REDUCED THICKNESS AT IMPACTED END AND DENT UNDER AXIAL IMPACT. [J]. 39(1):210-213(2017)
DOI：

WANG Zhen, JI ZhenHua, FENG XianZhang, et al. CRASHWORTHINESS OF SQUARE TUBE WITH REDUCED THICKNESS AT IMPACTED END AND DENT UNDER AXIAL IMPACT. [J]. 39(1):210-213(2017) DOI： 10.16579/j.issn.1001.9669.2017.01.036.

摘要

应用显式动力有限元法分析了冲击端减薄且有预压凹痕方管轴向冲击耐撞性性能。通过减薄方管的冲击端的板厚,可以降低冲击力峰值,但同时会造成方管在轴向冲击过程中屈曲折叠不规则,通过在方管上施加预压凹痕,可以使得方管在轴向冲击中规则的渐进屈曲折叠。最终可以实现改善方管耐撞性性能的目的。

Abstract

Crashworthiness of square tube with reduced thickness at impacted end and dent under axial impact is analyzed by dynamic explicit FEM. Peak impact force can be reduced by reducing thickness of impacted end,but at same time irregular folding comes out. By stamping dent on tube,progressive buckling folding can be achieved. So crashworthiness of tube is improved by reducing thickness at impacted end and stamping dent.

关键词

冲击端减薄方管预压凹痕轴向冲击耐撞性有限元

Keywords

Square tube with reduced thickness at impacted endDentAxial impactFEM

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