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

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Abstract

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.

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Authors and Affiliations

  1. Department of Industrial Engineering, University of Parma, Parco Area delle Scienze 181/A, Parma, 43124, Italy

    G. Lorenzini

  2. Escola de Engenharia (EE), Universidade Federal do Rio Grande (FURG), Itália Ave. km 8, 96203-900, Rio Grande, Rio Grande do Sul, Brazil

    D. Helbig, M. de V. Real, E. D. dos Santos & L. A. Isoldi

  3. Programa de Pós-Graduação em Engenharia Mecânica (PROMEC), Universidade Federal do Rio Grande do Sul (UFRGS), Sarmento Leite St. no. 425, 90050-170, Porto Alegre, Rio Grande do Sul, Brazil

    D. Helbig & L. A. O. Rocha

  4. Programa de Pós-Graduação em Modelagem Computacional (PPGMC), Universidade Federal do Rio Grande (FURG), Itália Ave. km 8, 96203-900, Rio Grande, Rio Grande do Sul, Brazil

    M. de V. Real, E. D. dos Santos, L. A. Isoldi & L. A. O. Rocha

  5. Programa de Pós-Graduação em Engenharia Oceânica (PPGEO), Universidade Federal do Rio Grande (FURG), Itália Ave. km 8, 96203-900, Rio Grande, Rio Grande do Sul, Brazil

    M. de V. Real, E. D. dos Santos, L. A. Isoldi & L. A. O. Rocha

Authors
  1. G. Lorenzini
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  2. D. Helbig
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  3. M. de V. Real
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  4. E. D. dos Santos
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  5. L. A. Isoldi
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  6. L. A. O. Rocha
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Correspondence to G. Lorenzini.

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Lorenzini, G., Helbig, D., Real, M.d. et al. Computational modeling and constructal design method applied to the mechanical behavior improvement of thin perforated steel plates subject to buckling. J. Engin. Thermophys. 25, 197–215 (2016). https://doi.org/10.1134/S1810232816020053

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  • DOI: https://doi.org/10.1134/S1810232816020053

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