A Study on the Bending Collapse at the Open Cross-Section Members with Experiment and Analysis

열린 단면 부재의 굽힘 붕괴 실험 및 해석에 관한 연구

  • 이승철 (강원대학교 기계ㆍ메카트로닉스 공학부) ;
  • 강신유 (강원대학교 기계ㆍ메카트로닉스 공학부)
  • Published : 2004.04.01


The open section members have been used as the members of vehicle such as automotives, airplanes and trains. When vehicles are crashed, these members have absorption of the energy and it is necessary for retainment of the survival space, and as the result, the prediction for the displacement of members in this case of the crash of vehicles is very important. The displacements of members in this case of the crash of automotives show combined aspect of both axial collapse and bending collapse. In the rollover accident when bending collapse happen, the collapse of each members is progressed by the plastic hinge which made from bending moment, and therefore the research for the behavior of members under bending moment after collapse is necessary to determine the internal energy which the members can absorb and the deformed shapes of the members on the step of design. In this paper, the characteristics of bending collapse at the members of the open cross-section were studied with experiment and numerical analysis. We made a comparative studied of the result of the experiment, and changed the axis according to the parallel-axis theorem.



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