Nonlinear structural behaviour and design formulae for calculating the ultimate strength of stiffened curved plates under axial compression

Abstract Cylindrically curved and stiffened plates are often used in ship and offshore structures. For example, they can be found in the cambered decks, fore and aft side shells and circular bilge parts of ships. A number of studies have investigated curved plates in which the buckling/ultimate strength is increased according to the curvature under various loading scenarios and design formulas. However, information regarding the nonlinear structural behaviour and design formulas for calculating the ultimate strength of the stiffened curved plates is currently limited. In this paper, a series of finite element analyses are performed on stiffened curved plates with varying geometric parameters. The existing curvatures are also analysed to clarify the effects of these parameters on the buckling/post-buckling characteristics and collapse behaviour under axial compression. The results are used to derive closed-form expressions to predict the ultimate compressive strength of curved stiffened plates for marine applications.

[1]  Rolf Zimmermann,et al.  Buckling and postbuckling of stringer stiffened fibre composite curved panels – Tests and computations , 2006 .

[2]  Kl L. Tran,et al.  Buckling of stiffened curved panels under uniform axial compression , 2014 .

[3]  Cesare Mario Rizzo,et al.  An analytical/numerical study on buckling behaviour of typical composite top hat stiffened panels , 2012 .

[4]  Raimund Rolfes,et al.  POSICOSS—improved postbuckling simulation for design of fibre composite stiffened fuselage structures , 2006 .

[5]  Hiroshi Yamaguchi,et al.  Buckling/Plastic Collapse Behaviour And Strength of Bilge Circle And Its Contribution to Ultimate Longitudinal Strength of Ship¿s Hull Girder , 2004 .

[6]  J. C. Chapman,et al.  STRENGTH AND STIFFNESS OF SHIPS' PLATING UNDER IN-PLANE COMPRESSION AND TENSION , 1987 .

[7]  Baidurya Bhattacharya,et al.  Estimation of ultimate hull girder strength with initial imperfections , 2008 .

[8]  Jeom Kee Paik,et al.  Ultimate limit state design of steel-plated structures , 2003 .

[9]  Kazuhiro Iijima,et al.  2006K-G4-3 Buckling and Post-buckling Behaviour of Cylindrically Curved Plates under Axial Compression , 2006 .

[10]  Shengming Zhang,et al.  A review and study on ultimate strength of steel plates and stiffened panels in axial compression , 2015 .

[11]  Jeom Kee Paik,et al.  Ship-Shaped Offshore Installations: Design, Building, and Operation , 2007 .

[12]  Jae-Myung Lee,et al.  Computational analysis and design formula development for the design of curved plates for ships and offshore structures , 2014 .

[13]  R Maquoi,et al.  Stability of plates and plated structures , 2000 .

[14]  Mohammad Reza Khedmati,et al.  A NUMERICAL INVESTIGATION INTO THE EFFECTS OF PARABOLIC CURVATURE ON THE BUCKLING STRENGTH AND BEHAVIOUR OF STIFFENED PLATES UNDER IN-PLANE COMPRESSION , 2010 .

[15]  Kazuhiro Iijima,et al.  Characteristics of Buckling and Ultimate Strength and Collapse Behaviour of Cylindrically Curved Plates Subjected to Axial Compression , 2008 .

[16]  Cyril Douthe,et al.  Stability of curved panels under uniform axial compression , 2012 .

[17]  Cyril Douthe,et al.  A preliminary design formula for the strength of stiffened curved panels by design of experiment method , 2014 .

[18]  Moshe M. Domb,et al.  REFINED DESIGN CURVES FOR COMPRESSIVE BUCKLING OF CURVED PANELS USING NONLINEAR FINITE ELEMENT ANALYSIS , 2001 .

[19]  Gunnar Solland,et al.  Background to DNV Recommended Practice DNV-RP-C201 Buckling Strength of Plated Structures , 2004 .

[20]  S Benson,et al.  Ultimate strength characteristics of aluminium plates for high-speed vessels , 2011 .