The Behavior of Local Buckling for Steel Circular Tubes Subject to Cyclic Axial Loads

반복 축하중을 받아 국부좌굴을 수반하는 원형강관 부재의 복원력 특성

In this paper, we work with steel circular tubes and propose analysis model which can consider local buckling that it has an effect on failure of steel structures and induce the relation between loading and deformation. First of all, in respect to axial symmetry local buckling, which is simplest case, elasto-plastic behavior acting only axial loads is object Therefore, it suggests analysis model for axial symmetry local buckling. And that is explainable the process from increasing internal force to decreasing passing maximum internal force. Besides, we induce the relation between the axial force and axial deformation.