Discussion on “Shear buckling of thin-walled channel sections” by C.H. Pham, G.J. Hancock [J Constr Steel Res 2009; 65(3): 585–579]

2010 ◽  
Vol 66 (1) ◽  
pp. 136-137 ◽  
Author(s):  
Osama Bedair
Keyword(s):  
Shear Buckling ◽  
Walled Channel ◽  
Thin Walled

Shear buckling of thin-walled channel sections

2009 ◽  
Vol 65 (3) ◽  
pp. 578-585 ◽  
Author(s):  
Cao H. Pham ◽  
Gregory J. Hancock
Keyword(s):  
Shear Buckling ◽  
Walled Channel ◽  
Thin Walled

Optimum Synthesis of Thin-Walled Vibrating Beams With Coupled Bending and Torsion

1989 ◽  
Vol 111 (4) ◽  
pp. 555-560 ◽  
Author(s):  
R. V. Grandhi ◽  
J. K. Moradmand
Keyword(s):  
Cross Sections ◽  
Structural Design ◽  
Dual Problem ◽  
Unconstrained Minimization ◽  
Channel Cross Section ◽  
Optimum Synthesis ◽  
Walled Channel ◽  
Vibrating Beams ◽  
Thin Walled ◽  
Structural Volume

This paper considers the optimum structural design of vibrating beams in which the inertial axes and the elastic axes are noncollinear. The condition of noncollinear axes exists in structures having unsymmetric cross-sections. For unsymmetric cross-sections the centroid and the shear center do not coincide. This results in coupling between some of the bending and torsional modes. This paper presents results for the simply supported and cantilever beams with a thin-walled channel cross-section. The minimization of the structural volume subject to multiple frequency constraints and its dual problem of maximization of the fundamental frequency subject to a volume constraint are considered. A quadratic extended interior penalty function with Newton’s method of unconstrained minimization is used in structural optimization. The structures considered have nonstructural masses besides their own mass.

Shear Buckling of Clamped and Simply-Supported Infinitely Long Plates Reinforced by Closed-Section Transverse Stiffeners

1962 ◽  
Vol 13 (3) ◽  
pp. 212-222 ◽  
Author(s):  
I. T. Cook ◽  
K. C. Rockey
Keyword(s):  
Circular Tube ◽  
Flexural Rigidity ◽  
Torsional Rigidity ◽  
Numerical Results ◽  
Rectangular Plates ◽  
Simply Supported ◽  
Shear Buckling ◽  
Thin Walled ◽  
The Individual

SummaryThe paper presents a solution to the buckling of infinitely long plates when they are reinforced by transverse stiffeners possessing both torsional and flexural rigidity. The cases of both edges being clamped and simply-supported are dealt with. Numerical results are presented for the ratio of torsional rigidity to flexural rigidity as obtained with a thin-walled circular tube. When the stiffeners are completely rigid, in which case the individual panels are clamped along the transverse edges, the results obtained are in agreement with existing solutions for isolated rectangular plates.

Numerical Analysis of the Influence of Material Model on Response of Compressed Imperfect Thin-Walled Channel

2014 ◽  
Vol 611 ◽  
pp. 188-193 ◽  
Author(s):  
Vladimír Ivančo ◽  
Gabriel Fedorko ◽  
Ladislav Novotný
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Model Selection ◽  
Finite Element Model ◽  
Material Model ◽  
Element Model ◽  
Material Models ◽  
Geometric Imperfections ◽  
Walled Channel ◽  
Thin Walled

In the paper, the influence of material model selection on the behaviour of Finite Element model of a compressed thin-walled channel is studied. Results of three material models of channels of two different lengths and two types of geometric imperfections are compared and discussed.

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