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A Study on the Damage of Steel Square Tubular Columns under Cyclic Loading  

Park, Yeon Soo (전남대학교 토목공학과)
Jeon, Dong Ho (전남대학교 토목공학과)
Suh, Byoung Chal (전남대학교 토목공학과)
Kim, Wook (전남대학교 토목공학과)
Choi, Dong Ho (한양대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.15, no.4, 2003 , pp. 369-378 More about this Journal
Abstract
This study proposed a damage index for steel members and examined a process where steel square tubular columns under cycle loading failed to meet the damage index. A nonlinear analysis was carried out and a damage process analyzed using a finite element program. Material properties and strain characteristics were obtained from material testing. The effect on the damage of members was analyzed according to varying kinds of steels and conditions of loading based on material testing results. According to strain characteristics and cumulative plastic strain of each variable, the effect of conditions of loading and kinds of steels on the damage could be estimated quantitatively.
Keywords
damage index; plastic strain; cumulative plastic strain; local strain;
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