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This and the next image are from:
Mohammad Reza Khedmati (1), and Pedram Edalat (2)
(1) Faculty of Marine Technology, Amirkabir University of Technology, Tehran 15914, Iran
(2) PhD Candidate, Faculty of Marine Technology, Amirkabir University of Technology, Tehran 15914 – Iran
“A numerical investigation into the effects of parabolic curvature on the buckling strength and behaviour of stiffened plates under in-plane compression”, Latin American Journal of Solids and Structures Vol. 7, No. 3, September 2010, http://dx.doi.org/10.1590/S1679-78252010000300002
ABSTRACT: The main targets of this research are mainly divided in to two parts: (1) identifying the effects of parabolic curvature on the buckling strength and behaviour of stiffened plates under in-plane compression, (2) generating practical graphs for extracting eigenvalue buckling stress of parabolic curved stiffened plate to dimensionless parameters. A parametric model for study of the problem is created. The model includes different parameters related to plate, stiffeners and also parabolic curvature. Three distinct sensitivity cases are assumed. In each sensitivity case, many different models are analysed and their buckling strengths are obtained using a finite element commercial program (ANSYS). Buckling strength and behaviour of all models with different ratios of parabolic curvature are compared to each other.
The following properties govern the buckling behavior under uniform axial compression: plate length, projected plate width, plate thickness, maximum height of curved plate from the base plane, distance between stiffeners, cross-section area A and moment of inertia of a stiffener
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