Welcome to Journal of Beijing Institute of Technology
Advance Search
Volume 21Issue 1
.
Turn off MathJax
Article Contents
Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2012> 21(1): 41-49
WU Xue-yuan, XIA Yong, ZHOU Qing. Influence of flange location on axial deformation stability of double-hat structure[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2012, 21(1): 41-49.
Citation: WU Xue-yuan, XIA Yong, ZHOU Qing. Influence of flange location on axial deformation stability of double-hat structure[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2012, 21(1): 41-49.
shu

Influence of flange location on axial deformation stability of double-hat structure

  • State Key Laboratory of Automotive Safety and Energy, Department of Automotive Engineering, Tsinghua University, Beijing 100084, China

  • Received Date:2011-03-10
    Abstract
  • A new structural configuration with better impact stability for increasing energy absorbing efficiency is found. Based on finite element analysis, deformation modes of double-hat structure under axial impact loading are categorized to find the main reasons that affect deformation stability. It is revealed that, in a double-hat structure, the location of the flanges is highly related to the deformation mode and energy absorbing efficiency. Moving the flanges away from their traditional mid-location may result in more regular and stable deformation mode and achieve higher energy absorbing efficiency. The flange offset value needs to be controlled within a certain range, otherwise, the double-hat structure would tend to deform like a top-hat structure and the energy absorbing efficiency could be compromised. These findings and analyses lead to a new structural design configuration-asymmetric flange locations—for enhancing the deformation mode stability in double-hat structures.
    • FullText(HTML)
  • loading
    • References (15)
  • [1]
    Alexander J M. An approximate analysis of the collapse of thin cylindrical shells under axial loading[J]. Quarterly Journal of Mechanics and Applied Mathematics, 1960, 13(1):10-15.
    [2]
    Pugsley A G, Macaulay M. Thelarge-scale crumpling of thin cylindrical columns[J]. Quarterly Journal of Mechanics and Applied Mathematics, 1960, 13(1):1-9.
    [3]
    Abramowicz W. The effective crushing distance in axially compressed thin-walled metal columns[J]. International Journal of Impact Engineering, 1983, 1(3): 309-317.
    [4]
    Abramowicz W, Jones N. Dynamic axial crushing of square tubes[J]. International Journal of Impact Engineering, 1984, 2(2): 179-208.
    [5]
    Abramowicz W, Jones N. Dynamic progressive buckling of circular and square tubes[J]. International Journal of Impact Engineering, 1986, 4(4):243-270.
    [6]
    Wierzbicki T, Abramowicz W. On the crushing mechanics of thin walled structures[J]. Journal of Applied Mechanics, 1983, 50:727-734.
    [7]
    Wierzbicki T, Abramowicz W. Axial crushing of multi-corner sheet metal columns[J]. Journal of Applied Mechanics, 1989, 56:113-120.
    [8]
    White M D, Jones N, Abramowicz W. A theoretical analysis for the quasi-static axial crushing of top-hat and double-hat thin-walled sections[J]. Journal of Mechanical Sciences, 1999, 41:209-33.
    [9]
    White M D, Jones N. A theoretical analysis for the dynamic axial crushing of top-hat and double-hat thin-walled sections[J]. Journal of Automobile Engineering, 1999, 213(4):307-325.
    [10]
    Ohkubo Y, Akamatsu T, Shirasawa K. Mean crushing strength of closed-hat section members, SAE paper, 740040[R]. Detroit, MI, USA: Society of Automotive Engineering, 1974.
    [11]
    Tani M, Funahashi A. Energy absorption by the plastic deformation of body structural members, SAE paper, 780368[R]. Detroit, MI, USA: Society of Automotive Engineering, 1978.
    [12]
    White M D, Jones N. Experimental quasi-static axial crushing of top-hat and double-hat thin-walled sections[J]. International Journal of Mechanical Sciences, 1999, 41:179-208.
    [13]
    White M D, Jones N. Experimental study into the energy absorbing characteristics of top-hat and double-hat sections subjected to dynamic axial crushing[J]. Journal of Automobile Engineering, 1999, 213(3):259-278.
    [14]
    Xia Y, Zhou Q, Wang P C, et al. Development of a high-efficiency modeling technique for weld-bonded steel joints in vehicle structures, part Ⅱ: dynamic experiments and simulations[J]. International Journal of Adhesion and Adhesives, 2008, 29:427-433.
    [15]
    Livermore Software Technology Corporation (LSTC). LS-DYNA Keyword User’s Manual (Version 971)[M]. California: LSTC, 2007.
    • Relative Articles
  • Supplements (0)
  • Cited By
  • 加载中

Catalog

    通讯作者:陈斌, bchen63@163.com
    • 1.

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (850) PDF downloads(181) Cited by()
    Proportional views
    Related

    Address:5 Zhongguancun South Street, Haidian District, Beijing

    Tel:86-10-68914374

    Email:blgywb@bit.edu.cn

    Copy Right © Journal of Beijing Institute of Technology

    Supported by:Beijing Renhe Information Technology Co. Ltd

    /

      Return
      Return
        Baidu
        map