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http://dx.doi.org/10.7837/kosomes.2018.24.1.126

A Study on the Buckling Strength of Perforated Plates for 60M Twin-hull Car-ferry  

Seo, Kwang-Cheol (Department of Naval Architecture and Ocean Engineering, Mokop National Maritime University)
Oh, Jungmo (Division of Marine Engineering, Mokpo National Maritime University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.24, no.1, 2018 , pp. 126-132 More about this Journal
Abstract
This paper discusses about results of advanced buckling strength design for several kinds of perforated plated in the twin-hull car-ferry. For medium / small sized high speed vessels with a length of more than 50 meters and a length / width ratio of more than 12, such as car-ferries, it is highly possible that the buckling strength becomes weak due to the relatively thin thickness and the use of low strength capacity such as mild steel. Especially, it becomes big problem about weak buckling rigidity around the opening to access purpose in the perforated. As regarding safety design point of view for perforated plate, it is necessary to clarify buckling strength and ultimate strength by the distribution of in-plane load distribution around the opening. In this study, nonlinear series analysis using ANSYS was performed to clarify the influence of parameters such as aspect ratio, opening ratio and opening shape affecting the buckling and ultimate strength characteristics of the perforated plate under axial compression and we are derived the optimum design as buckling strength point of view. Based on these results, the governing factor determining the buckling strength of the perforated plate was the opening ratio, and the aspect ratio and the shape of the hole were not influenced.
Keywords
Twin-hull car-ferry; Perforated plate; Buckling strength; Ultimate strength; In-plane load; Nonlinear series analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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