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[구조강도부문] 차체구조용 이중모자형 단면부재의 충격압궤속도변화에 따른 에너지 흡수 특성
강종엽(Jongyoup Kang),차천석(Chunsuk Cha),김영남(Youngnam Kim),김선규(Sunkyu Kim),양인영(Inyoung Yang) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The spot welded hat-shaped section vehicle member shows remarkable absorbing characteristics in front end collision. The collapse characteristics of the section has been estimated on variation of collapse velocities and spot weld pitches on the flanges.<br/> Using an axial test device operated by compressed air, the impact collapse tests have been carried out. In addition, these tests have been simulated by the non linear explicit FEM package, LS-DYNA3D. The detailed stress-deformation processing and collapse modes was unavailable during impact collapse tests, but has been analyzed with the impact collapse simulation.<br/>