한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제12권1호
  • /
  • Pages.91-98
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  • 2004
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  • 1225-6382(pISSN)
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  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

성형 효과를 고려한 차체 구조 부재의 충돌 특성

Crashworthiness of an Auto-body Member with the Forming Effect

  • 김기풍 (포스코 자동차가공연구그룹) ;
  • 송정한 (한국과학기술원 기계공학과) ;
  • 허훈 (한국과학기술원 기계공학과) ;
  • 김현섭 (기아자동차) ;
  • 홍석길 (기아자동차)
  • 발행 : 2004.01.01
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초록

This paper is concerned with crash analysis for an auto-body member with the forming effect. Auto-body members such as a front frame assembly are fabricated with sheet metal forming processes that induce forming histories such as the plastic work hardening and non-uniform thickness distribution. Numerical simulation is carried out with LS-DYNA3D in order to identify the forming effect on the crashworthiness. The crash analysis of the front frame assembly with the forming effect leads to a different result from that without the forming effect. Crashworthiness such as the load-carrying capacity, the crash mode and the energy absorption are calculated to investigate and identify the forming effect. It is fully demonstrated that the design of auto-body members needs to consider the forming effect for accurate assessment of the load-carrying capacity and the deformation mechanism of the formed members.

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참고문헌

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