Buckling/Post Buckling behaviour Comparison of Unstiffened Curved Plates and Stiffened Curved Plates Subjected to Axial Compression
A ship structure is basically an assembly of stiffened panel elements and an estimation of the maximum load carrying capacity or the ultimate strength of these members is a very important task for the safety assessment and rational design of the structure.In general,cylindrically curved unstiffened and stiffened plates are often used in ship structures and offshore structure,for example at deck plating with a camber,side shell plating at fore and aft parts and bilge circle part.It has been known that curvature increases the buckling stre ngth of a plate subjected to axial compression,and is expected to increase also the ultimate strength.In the present paper,to clarify and examine the fundamental buckling and post-buckling behaviours in comparison unstiffened and stiffened curved plates subjected to axial compressive load,a series of elastic and elasto-plastic large deflection analyses are performed applying nonlinear FEM codes,ULSAS and ANSYS.On the basis of the numerical results,influences of curvature,magnitude of initial deflection,slenderness ratio and aspect ratio on the characteristics of the buckling and post-buckling behaviour in comparison unstiffened and stiffened curved plates under axial compression are discussed.
Cylindrically curved stiffened plate Axial Compression Buckling strength Post-buckling behaviour Ultimate strength Slenderness ratio Aspect ratio Initial deflection
Joo-Shin Park Kazuhiro Iijima Tetsuya Yao
Department of Naval Architecture & Ocean Engineering,Osaka University,JAPAN
国际会议
International Conference on Modelling,Identification and Control(模拟、鉴定、控制国际会议)
上海
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）