Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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A Simplified Method to Consider Forming Effects in a Car Crash Analysis

차량충돌해석 적용을 위한 간단화한 성형이력 고려 방법

  • 허지향 (한국과학기술원 기계항공시스템학부) ;
  • 윤종헌 (한국과학기술원 기계항공시스템학부) ;
  • 임지호 (포스코 강재연구센터) ;
  • 박성호 (포스코 강재연구센터) ;
  • 허훈 (한국과학기술원 기계항공시스템학부)
  • Published : 2008.10.09
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Abstract

This paper introduces a simplified method to consider forming effects in a car crash analysis. Representative value was used to consider forming effects simply. Four representative values, which are the mean value of thicknesses and effective plastic strains at nodes, the median of thicknesses and effective plastic strains at nodes, were evaluated. A crash analysis of a front side member shows that analysis results from the suggested methods are similar to those from the conventional method to consider forming effects. Use of the mean effective plastic strain shows the best results. A car crash analysis for a ULSAB/AVC model under the condition of US SINCAP were carried out to demonstrate the validity of the suggested method. Analysis results show that the error of suggested method is less than 1.5%.

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