A Case Study - Investigation of Rounded Corners Effect on Corrugated Bulkheads

Year 2017, , 387 - 392, 30.06.2017

Özgür Özgüç

https://doi.org/10.18466/cbayarfbe.319882

Abstract

Corrugated bulkheads are
widely used in ship and offshore structures giving higher load carrying
capacity compared to the flat plates. As a case study this paper attempts to investigate
the effect of rounded corners on corrugated bulkheads with respect to buckling
strength. Non-linear finite element analysis using ABAQUS is utilized. Rounded
and sharp comers are being compared for a typical geometry with three different
plate-thicknesses in order to find out if the rounded corners give additional
strength and therefore can be used to reduce the flange-width. It is shown that
the linear buckling load is larger for round cornered bulkheads. However, the
ultimate strength is smaller than for a similar bulkhead with sharp comers. The
results and insights derived from the present work are drawn.   

Keywords

Axial compression, Bending, Buckling, Corrugated bulkheads, Non-linear finite element analysis, Ultimate limit state

References

• ] ABAQUS, User’s Manual, Hibbitt, Karlsson and Sorensen, 2009. [2] Det Norske Veritas (DNV), Rules for Classification of Ship, Part 3, Chapter 1, Sec.9, January 2014.
• [3] Det Norske Veritas (DNV), Rules for Classification of Ship, Part 2, Chapter 2, Sec.1, January 2015.
• [4] Karthi, L.; Nandakumar, C.G. Investigations on elastic behaviour of corrugated plates, International Journal of Scientific & Engineering Research, 2013, 4/5: 1-9.
• [5] Ji, H.D.; Cui, W.C.; Zhang, S.K. Ultimate strength analysis of corrugated bulkheads considering influence of shear force and adjoining structures, Journal of Constructional Steel Research, 2001; 57/5: 525-545.
• [6] Lei, H.; Ping, Y. Numerical analysis on the ultimate strength of corrugated bulkheads, Chinese Journal of Ship Research, 2011, 6/3: 28-31.
• [7] Liang, Y.H.; Louca, L.A.; Hobbs, R.E. Corrugated panels under dynamic loads, International Journal of Impact Engineering, 2007, 34/7: 1185–1201.
• [8] Ringsberg, J.; Sağlam, H.; Sarder, M.A.; Ulfvarson, A. Optimization of corrugated shell plating for marine structures, 2011, Proceedings of the ASME Thirtieth International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011-50216), 1: 769-778.
• [9] Sun, H.H.; Spencer, J. Buckling strength assessment of corrugated panels in offshore structures, Marine Structures, 2005; 18/7-8: 548-565.