Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Development of a Finite Element Model for Crashworthiness Analysis of a Small-Sized Bus

소형버스 정면 충돌 특성 해석을 위한 유한요소 모델의 개발

  • 김학덕 (전북대학교 정밀기계공학과) ;
  • 송주현 (현대자동차 사용구조 연구팀) ;
  • 오재윤 (전북대학교 기계공학부, 메카트로닉스 연구센터)
  • Published : 2002.01.01
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Abstract

This paper develops a finite element model for crashworthiness analysis ova small-sized bus. The full vehicle finite element model is composed of 31,982 shell elements,599 beam elements,42 bar elements, and 34,204 nodes. The model uses four material models (such as elastic, elastic-plastic(steel), rigid. and elastic-plastic (rubber) material model) of PAM-CRASH. The model uses four contact types to define sliding interfaces in ten areas. A frontal crash test using an actual vehicle with 30mph velocity to a rigid barrier is carried out. Vehicle pulses at lower part of left and right b-pillar are measured, and deformed shapes of frame and driver seat's lower left area are photographed. A frontal crash simulation using the developed full vehicle finite element model is performed with PAM-CRASH installed in super computer SP2. The simulation is performed with the same conditions as the test. The measured vehicle pulses and photographed deformed shapes from the test are compared to ones from the simulation to validate the reliability of the developed model.

Keywords

References

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