Journal of Welding and Joining

  • 제20권6호
  • /
  • Pages.802-808
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  • 2002
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
권호 표지

차체구조용 SCP1 강도부재의 점용접간격이 압궤특성에 미치는 영향

Influence of Spot Weld Pitches on Collapse Characteristics for SCP1 Vehicle Members

  • 차천석 (조선대학교 항공ㆍ조선공학부) ;
  • 박제웅 (조선대학교 항공ㆍ조선공학부) ;
  • 양인영 (조선대학교 기계공학부)
  • 발행 : 2002.12.01
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초록

Front-side members are structures with the greatest energy absorbing capability in a front-end collision of vehicles. This paper was performed to analyze initial collapse characteristics of spot welded hat and double hat-shaped section members, which are basic shape of side members, on the shift of flange weld pitches. The impact collapse tests were carried out by using home-made vertical air compression impact testing machine, and impact velocity of hat-shaped section members is 4.17m/sec and that of double hat-shaped section members is 6.54m/sec. In impact collapse tests, the collapsed length of hat-shaped section members was about 45mm and that of double hat-shaped section members was about 50mm. In consideration of these condition, axial static collapse tests(0.00017m/sec) of hat and double hat-shaped section members were carried out by using UTM which was limited displacement, about 50mm. As the experimental results, to obtain the best initial collapse characteristics, it is important that stiffness of vehicle members increases as section shapes change and the progressively folding mode induces by flange welding pitch.

키워드

참고문헌

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