RESEARCH PAPER
Koiter Asymptotic Analysis Of Thin-Walled Cold-Formed Steel Members
1
Faculty of Civil Engineering, Department of Steel Structures and Structural Mechanics, Politehnica University of Timisoara, Timisoara, Romania
2
Laboratory of Steel Structures, Romanian Academy – Timisoara Branch, Timisoara, Romania
3
MODELING Department, University of Calabria, Cosenza, Italy
Submission date: 2015-09-06
Acceptance date: 2015-12-14
Online publication date: 2015-12-30
Publication date: 2015-12-01
Acta Mechanica et Automatica 2015;9(4):245-251
KEYWORDS
Koiter Asymptotic ApproachInstability ProblemsThin-Walled Cold-Formed Steel MembersImperfection Sensitivity AnalysisMonte Carlo
ABSTRACT
An imperfection sensitivity analysis of cold-formed steel members in compression is presented. The analysis is based on Koiter’s approach and Monte Carlo simulation. If the modes interaction is correctly accounted, than the limit load and the erosion of critical buckling load can be easily evaluated. Thousands of imperfection can be analysed with very low computational cost and an effective statistical evaluation of limit performance can be carried out. The analysis is done on pallet rack uprights in compression, based on an intensive experimental study carried out at the Politehnica University of Timisoara.
REFERENCES (16)
1.
Barbero E.J., Madeo A., Zagari G., Zinno R., Zucco G. (2014), Koiter asymptotic analysis of folded laminated composite plates, Composites Part B: Engineering, 61, 267–274.
2.
Barbero E.J., Madeo A., Zagari G., Zinno R., Zucco G. (2015), Imperfection sensitivity analysis of laminated folded plate, Thin-Walled Structures, 90, 128-139.
3.
Casciaro R. (2005), Computational asymptotic post-buckling analysis of slender elastic structures, in Phenomenological and Mathematical Modelling of Structural Instabilities, M. Pignataro, V. Gioncu (eds.), Vol. 470, CISM International Centre for Mechanical Sciences, Springer Vienna, 95–276, 2005.
4.
Crisan A, Ungureanu V., Dubina D. (2012a), Behaviour of cold-formed steel perforated sections in compression: Part 1-Experimental investigations, Thin-Walled Structures, 61, 86-96.
5.
Crisan A, Ungureanu V., Dubina D. (2012b), Behaviour of cold-formed steel perforated sections in compression: Part 2-Numerical investigations and design considerations, Thin-Walled Structures, 61, 97-105.
6.
Dubina D. (2001), The ECBL approach for interactive buckling of thin-walled steel members, Steel Composite Structures, 1(1), 75-96.
7.
Dubina D., Ungureanu V. (2002), Effect of imperfections on numerical simulation of instability behaviour of cold-formed steel members, Thin-Walled Structures, 40(3), 239–262.
8.
Dubina D., Ungureanu V. (2014), Instability mode interaction: from Van Der Neut model to ECBL approach, Thin-Walled Structures, 81, 39–49.
9.
Garcea G., Bilotta A., Madeo A., Casciaro R. (2014a), Direct Evaluation of the Post-Buckling Behavior of Slender Structures Through a Numerical Asymptotic Formulation, Direct Methods for Limit States in Structures and Materials, Springer Netherlands, 203-228.
10.
Garcea G., Bilotta A., Madeo A., Zagari G., Casciaro R. (2014b), A Numerical Asymptotic Formulation for the Post-buckling Analysis of Structures in Case of Coupled Instability, Special Issue Stability And Nonlinear Analysis Of Steel Structures – Research Advances, Romanian Journal of Technical Sciences Applied Mechanics, 59(1–2), 38-55.
11.
Garcea G., Madeo A., Casciaro R. (2012a), The implicit corotational method and its use in the derivation of nonlinear structural models for beams and plates, Journal of Mechanics of Materials and Structures, 7(6), 509-538.
12.
Garcea G., Madeo A., Casciaro R. (2012b), Nonlinear FEM analysis for beams and plate assemblages based on the implicit corotational method, Journal of Mechanics of Materials and Structures, 7(6), 539-574.
13.
Gioncu V. (1994), General Theory of Coupled Instability, Thin-Walled Structures (Special Issue on Coupled Instability in Metal Structures – CIMS’92), 19(2-4), 81-128.
14.
Riks E. (1979), An incremental approach to the solution of snapping and buckling problems, International Journal of Solids and Structures, 15(7), 529–551, 1979.
15.
Ungureanu V., Dubina D. (2013), Sensitivity to imperfections of perforated pallet rack sections, Mechanics and Mechanical Engineering, Lodz University of Technology, 17(2), 209–222.
16.
Zagari G., Madeo A., Casciaro R., de Miranda S., Ubertini F. (2013), Koiter analysis of folded structures using a corotational approach, International Journal of Solids and Structures, 50(5), 755–765.
| eISSN: | 2300-5319 |
| ISSN: | 1898-4088 |
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