저니켈 듀플렉스계 스테인리스강 2행1열 일면전단 볼트접합부 구조거동에 대한 유한요소해석

초록

Since stainless steel has many advantages such as excellent durability, ductility and corrosion resistance compared to those of carbon steel, recently, the need of stainless steel has been increased as a structural material in a variety of structural members and industrial fields. However, stainless steels are not included as the structural materials in Korean Design Standards (KDS 41 31 00) and the corresponding design standards are not specified. In this paper, finite element analysis has been performed to investigate the ultimate strength and curling effect based on the previous test results on duplex stainless steel (STS329FLD) single shear two-bolted connection. It is known that in both test and analysis, curling(out-of-plane deformation) occurred in specimens with a long end distance and it reduced the strength of curled specimen. Also, additional parametric analysis was conducted according to initial imperfection of connected plate and analysis results considering initial imperfection provided a better strength prediction of STS329FLD bolted connection.

키워드