Elastic buckling analysis of longitudinally stiffened plates with flat-bar stiffeners

Ranji, Ahmad Rahbar

doi:10.1016/j.oceaneng.2012.09.018

Cited by 27 publications

(10 citation statements)

References 9 publications

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“…The total simulation time could be significantly long in the design of stiffened panels, as an iterative optimisation is generally needed and the critical buckling strength has to be calculated at each iteration [16]. Hence, analytical solutions for buckling analysis of stiffened panels, which can achieve comparatively accurate results in an extremely short time, is very much in need [17].…”

Section: Nomenclaturementioning

confidence: 99%

“…The exact deflection of the stiffener (Eqs. (17) and 21 The rotation of skin is caused by the non-uniform torsional moment ( ′ ) along the connecting edge due to the buckling of the stiffener. The torsional moment is equal to the bending moment on the connecting edge of the stiffener ( ), which is a sinusoid function according to Eqs.…”

Section: Boundary Conditions Of Buckling Modelmentioning

confidence: 99%

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An analytical solution for elastic buckling analysis of stiffened panel subjected to pure bending

Zhou

Shi

et al. 2019

International Journal of Mechanical Sciences

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Section: Nomenclaturementioning

confidence: 99%

Section: Boundary Conditions Of Buckling Modelmentioning

confidence: 99%

An analytical solution for elastic buckling analysis of stiffened panel subjected to pure bending

Zhou

Shi

et al. 2019

International Journal of Mechanical Sciences

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“…In previous studies (Fujikubo and Yao 1999;Rahbar-Ranji 2013), horizontal bending equilibrium of flange plate is not considered. In this paper, its influence is studied, and the governing equation is…”

Section: Stiffeners With Deformable Web Platementioning

confidence: 99%

Elastic buckling of stiffened panels in ships under bi-axial compression

Cui

Wang

2016

Ships and Offshore Structures

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This paper focuses on the elastic buckling strength of typical stiffened panels under bi-axial compression. Three levels of assumptions for stiffeners are investigated: (1) Vlasov assumption; (2) stiffeners' web plate assumed deformable; (3) both stiffeners' web and flange plates assumed deformable. The bi-axial buckling strengths for deck and bottom stiffened panels in typical merchant ships are obtained by minimum potential energy principle, and the results are compared with corresponding finite element analysis results. It shows that Vlasov assumption should be corrected, while the other two assumptions yield similar satisfactory results. Sensitivity analysis is made for scantlings of the stiffened panel. Above three assumptions all exhibit high efficiency.

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“…Elastic T-stiffened panels under uniaxial compression were characterised for a wide range of typical panel geometries. Recently, Rahbar-Ranji [17] has investigated the characteristics of interactions of different buckling modes for fl at-bar stiffened panels. He used energy method for the analyses of selected buckling modes of stiffened plates including plate buckling, torsional buckling, web buckling and interactions of them when either plate or stiffener or both are under compression.…”

Section: Abstract: Buckling Stiffened Plate Initial Geometric Imperfmentioning

confidence: 99%

Assessing buckling strength of stiffened plates as affected by localized initial geometric imperfections

Mouhat

Khamlichi

Limam

2013

IRASE

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Considering a stiffened panel made from an elastic homogeneous and isotropic material which suffers a single localized initial geometric imperfection, assessment of the buckling limit state under in-plane uniform axial compression in the direction of stiffeners was performed. Giving a topological configuration of the stiffened plate, focus was aimed at the combined effect resulting from geometrical dimensions and localized defect characteristics. The perfect stiffened plate taken as reference and diverse imperfect stiffened plates suffering a single localized initial geometric defect of the form of a square depression were analyzed in this work. Extensive parametric finite element simulations were performed according to full factorial design of experiment tables that were built on key intervening factors. It was found that the main parameters controlling the buckling stress for the perfect plate are the plate width, then the web height and width, then finally the interaction between plate width and web height. In case of imperfect plates, the most adverse situation was obtained with the defect placed on the intermediate segments of the stiffened plate. A reduction of the buckling stress as low as 56% was reached in this situation. The main factors influencing the buckling load for the imperfect plate differ according to the defect configuration.

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Elastic buckling analysis of longitudinally stiffened plates with flat-bar stiffeners

Cited by 27 publications

References 9 publications

An analytical solution for elastic buckling analysis of stiffened panel subjected to pure bending

An analytical solution for elastic buckling analysis of stiffened panel subjected to pure bending

Elastic buckling of stiffened panels in ships under bi-axial compression

Assessing buckling strength of stiffened plates as affected by localized initial geometric imperfections

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