Computational modeling and constructal design method applied to the mechanical behavior improvement of thin perforated steel plates subject to buckling

Perforated steel plates are structural components widely employed in engineering. In several applications these panels are subjected to axial compressive load, being undesired the occurrence of buckling. The present work associates the computational modeling and the constructal design method to obta...

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Bibliographic Details
Published in:Journal of engineering thermophysics 2016-04, Vol.25 (2), p.197-215
Main Authors: Lorenzini, G., Helbig, D., Real, M. de V., dos Santos, E. D., Isoldi, L. A., Rocha, L. A. O.
Format: Article
Language:English
Subjects:
Fluid- and Aerodynamics
Physics
Physics and Astronomy
Thermodynamics
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Summary:Perforated steel plates are structural components widely employed in engineering. In several applications these panels are subjected to axial compressive load, being undesired the occurrence of buckling. The present work associates the computational modeling and the constructal design method to obtain geometries, which maximizes the mechanical behavior for these components. A numerical model was used to tackle with elastic and elasto-plastic buckling. Square and rectangular plates with centered elliptical cutouts were considered and several hole volume fractions and ratios between the ellipse axes ( H 0 / L 0 ) were taken into account. Stress limit improvements around 100% were achieved depending only on the cutout shape.
ISSN:1810-2328
1990-5432
DOI:10.1134/S1810232816020053