Advanced search
1 file | 144.56 KB

Influence of plasticity on the lateral-torsional buckling behaviour of cellular beams

Delphine Sonck (UGent) , Wesley Vanlaere (UGent) and Rudy Van Impe (UGent)
Author
Organization
Abstract
The use of steel beams with large circular web openings along the length of the beam has increased steadily during the last decades. However, not all aspects of the design of these cellular beams have been studied extensively, such as lateral-torsional buckling (LTB). In previous work, an existing design rule for this failure mode was investigated for purely elastic beams. Even though this rule was shown to be quite accurate for most cases, it could sometimes give unsafe results for certain short-length geometries. In reality however, the steel will display elastic-plastic behaviour, causing these geometries to fail by plasticity of the cross-section rather than elastic instability. In this work, the design rule will be further examined by performing numerical simulations, taking into account these effects of plasticity, as well as imperfections and geometric nonlinearity. It will be shown that the existing design rule always gives safe results for the examined geometries.
Keywords
cellular beams, failure load, lateral-torsional buckling, numerical simulations, Abaqus

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 144.56 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Sonck, Delphine, Wesley Vanlaere, and Rudy Van Impe. 2011. “Influence of Plasticity on the Lateral-torsional Buckling Behaviour of Cellular Beams.” In Advances in Engineering Plasticity and Its Applications : Proceedings of 10th Asia-Pacific Conference on AEPA 2010, ed. Yunhui Huang. World Scientific.
APA
Sonck, D., Vanlaere, W., & Van Impe, R. (2011). Influence of plasticity on the lateral-torsional buckling behaviour of cellular beams. In Yunhui Huang (Ed.), Advances in engineering plasticity and its applications : proceedings of 10th Asia-Pacific conference on AEPA 2010. Presented at the 10th Asia-Pacific conference on Engineering Plasticity and its Applications (AEPA 2010), World Scientific.
Vancouver
1.
Sonck D, Vanlaere W, Van Impe R. Influence of plasticity on the lateral-torsional buckling behaviour of cellular beams. In: Huang Y, editor. Advances in engineering plasticity and its applications : proceedings of 10th Asia-Pacific conference on AEPA 2010. World Scientific; 2011.
MLA
Sonck, Delphine, Wesley Vanlaere, and Rudy Van Impe. “Influence of Plasticity on the Lateral-torsional Buckling Behaviour of Cellular Beams.” Advances in Engineering Plasticity and Its Applications : Proceedings of 10th Asia-Pacific Conference on AEPA 2010. Ed. Yunhui Huang. World Scientific, 2011. Print.
@inproceedings{1088254,
  abstract     = {The use of steel beams with large circular web openings along the length of the beam has increased steadily during the last decades. However, not all aspects of the design of these cellular beams have been studied extensively, such as lateral-torsional buckling (LTB). In previous work, an existing design rule for this failure mode was investigated for purely elastic beams. Even though this rule was shown to be quite accurate for most cases, it could sometimes give unsafe results for certain short-length geometries. In reality however, the steel will display elastic-plastic behaviour, causing these geometries to fail by plasticity of the cross-section rather than elastic instability. In this work, the design rule will be further examined by performing numerical simulations, taking into account these effects of plasticity, as well as imperfections and geometric nonlinearity. It will be shown that the existing design rule always gives safe results for the examined geometries.},
  author       = {Sonck, Delphine and Vanlaere, Wesley and Van Impe, Rudy},
  booktitle    = {Advances in engineering plasticity and its applications : proceedings of 10th Asia-Pacific conference on AEPA 2010},
  editor       = {Huang, Yunhui},
  isbn         = {9789814324045},
  keyword      = {cellular beams,failure load,lateral-torsional buckling,numerical simulations,Abaqus},
  language     = {eng},
  location     = {Wuhan, PR China},
  pages        = {6},
  publisher    = {World Scientific},
  title        = {Influence of plasticity on the lateral-torsional buckling behaviour of cellular beams},
  year         = {2011},
}