수직압을 받는 트윕강 보강패널의 극한거동

다국어 초록 (Multilingual Abstract)

The TWIP steel has been recently developed as a high performance steel that has both high strength and elongation by the strain hardening capacity after yielding. This study investigates ultimate behaviors of stiffened panels built up with TWIP and conventional steels based on static and dynamic nonlinear finite element analysis schemes. In static ultimate strength analysis, the TWIP steel panels showed full capacity of resistance and rotation at boundaries so that and tensile failure occurred near central points of panels with maximum out-of-plane displacements while the conventional steel panels exhibited premature failure near boundaries due to yielding. A novel method for evaluating panel strengths due to dynamic loading in time domain has been suggested by utilizing stress degradation concept. The strength of TWIP steel panel was found to be 6 times more in static evaluation and 3 times more in dynamic evaluation than conventional steel panel.

참고문헌 (Reference)

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