Numerical analysis of the thermal buckling in thin steel plates

Authors

  • Daniel Helbig Universidade Federal do Rio Grande do Sul (UFRGS)
  • Roberta da Silva Michaello Universidade Federal do Rio Grande (FURG)
  • Elizaldo Domingues dos Santos Universidade Federal do Rio Grande (FURG)
  • Mauro de Vasconcellos Real Universidade Federal do Rio Grande (FURG)
  • Luiz Alberto Oliveira Rocha Universidade Federal do Rio Grande do Sul (UFRGS)
  • Liércio André Isoldi Universidade Federal do Rio Grande, Escola de Engenharia

DOI:

https://doi.org/10.14808/sci.plena.2015.081308

Keywords:

Thermal buckling, thin steel plates, Finite Element Method (FEM).

Abstract

Thin steel plates are structural elements widely used in several engineering applications, as in offshore platforms, bridges, ships, aircrafts and cars. However, in some specific situations the plates can suffer thermal buckling, which is a lateral deflection and bending caused only by a rise in temperature (critical temperature variation). This paper uses a computational model developed in ANSYS software, that is based on the Finite Element Method (FEM), to treat the thermal buckling problem in plates. The numerical model was verified by means of the comparison of its results with the analytical solution of the problem. Plates with different H/L ratios, being H the height and L the length of the plate, were analyzed. Besides, different thickness of the plate were also considered. The results indicated that the increase in the critical thermal variation is related  to the increase of the H/L ratio as well as to the increase of the plate thickness.

Author Biographies

Daniel Helbig, Universidade Federal do Rio Grande do Sul (UFRGS)

http://lattes.cnpq.br/0757078776828549

Roberta da Silva Michaello, Universidade Federal do Rio Grande (FURG)

http://lattes.cnpq.br/4049811112115448

Elizaldo Domingues dos Santos, Universidade Federal do Rio Grande (FURG)

http://lattes.cnpq.br/6854950768271660

Mauro de Vasconcellos Real, Universidade Federal do Rio Grande (FURG)

http://lattes.cnpq.br/1131858526704034

Luiz Alberto Oliveira Rocha, Universidade Federal do Rio Grande do Sul (UFRGS)

http://lattes.cnpq.br/2535324018884724

Liércio André Isoldi, Universidade Federal do Rio Grande, Escola de Engenharia

http://lattes.cnpq.br/3761060945802171

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Published

2015-08-31

How to Cite

Helbig, D., Michaello, R. da S., dos Santos, E. D., Real, M. de V., Rocha, L. A. O., & Isoldi, L. A. (2015). Numerical analysis of the thermal buckling in thin steel plates. Scientia Plena, 11(8). https://doi.org/10.14808/sci.plena.2015.081308

Issue

Vol. 11 No. 8 (2015): August/Agosto 2015

Section

VI Conferência Sul em Modelagem Computacional

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