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Collapse Characteristics on Width Ratio and Flange Spot-Weld Pitch for Hat-Shaped Members

모자형 단면부재의 폭비와 플랜지 용접간격에 따른 압궤특성

  • Cha, Cheon-Seok (Dept.of Mechanical Design Engineering, Graduate School of Chosun University) ;
  • Gang, Jong-Yeop (Dept.of Mechanical Design Engineering, Graduate School of Chosun University) ;
  • Kim, Yeong-Nam (Dept.of Mechanical Design Engineering, Graduate School of Chosun University) ;
  • Kim, Jeong-Ho (Dept.of Mechanical Automotive Engineering, Sunchon National University) ;
  • Kim, Seon-Gyu (Iksan National College) ;
  • Yang, In-Yeong
  • 차천석 (조선대학교 대학원 기계설계공학과) ;
  • 강종엽 (조선대학교 대학원 기계설계공학과) ;
  • 김영남 (조선대학교 대학원 기계설계공학과) ;
  • 김정호 (순천대학교 기계.자동차공학부) ;
  • 김선규 (익산대학 자동차과) ;
  • 양인영
  • Published : 2001.01.01

Abstract

The fundamental and widely used spot welded sections of automobiles (hat and double hat-shaped section members) absorb most of the energy in a front-end collision. The sections were tested on axial static(10mm/min) and quasi-static(1000mm/min) loads. Based on these test results, specimens with various thickness, shape and spot weld pitch on the flange have been tested with impact velocity(7.19m/sec) the same as a real life car clash. Characteristics of collapse have been reviewed and a structure of optimal energy absorbing capacity is suggested.

Keywords

Spot Welded Sections;Hat and Double Hat-Shaped Section;Front-End Collision;Static and Quasi-Static Loads;Impact;Characteristics of Collapse

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