International Journal of Precision Engineering and Manufacturing

Korean Society for Precision Engineering (한국정밀공학회)
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An Experimental Study on the Axial Impact Collapse Characteristics of Spot Welded Section Members

  • Cha, Cheon-Seok (Division of Aerospace and Naval Architectural Engineering Chosun University) ;
  • Beak, Kyung-yun (Department of Mechanical Design Engineering Graduate School, Chosun University) ;
  • Kim, Young-Nam (Division of Mechanical Engineering, Chosun University) ;
  • Park, Tae-Woung (Division of Aerospace and Naval Architectural Engineering Chosun University) ;
  • Yang, In-Young (Division of Mechanical Engineering, Chosun University)
  • Published : 2003.03.01
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Abstract

The spot welded sections of automobiles (hat and double hat shaped sections) absorb most of the energy in a front-end collision. The target of this paper is to analyze the energy absorbing capacity of the structure against the front-end collision, and to obtain useful information for designing stage. Changed the spot welded pitches on the flanges, the hat and double hat shaped section members were tested on the axial collapse loads at various impact velocities. It was expected that para-closed sections would show collapse characteristics which be quite different from those of perfectly closed sections. Hat shaped section members were tested at the impact collapse velocities of 4.72m/sec, 6.54m/sec and 7.1m/sec and double hat shaped section members were tested at the impact collapse velocities of 6.54m/sec, 7.1 m/sec and 7.27m/sec.

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References

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