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Locally supported cylinders with rigid stiffeners: elasto-plastic failure

Arne Jansseune UGent, Wouter De Corte UGent and Rudy Van Impe UGent (2011) 6th European conference on steel and composite structures, Proceedings. A. p.855-860
abstract
Steel silos [1] are thin-walled cylindrical shell structures which are frequently supported by local supports or engaged columns. These discrete supports introduce high forces into the shell wall, resulting in axial compressive stress concentrations in the shell wall directly above the supports. Consequently, both buckling and yielding resistance are reduced due to these elevated compressive stresses. This premature instability phenomenon should be avoided at any time. Because of this, a local stiffening configuration near the supports is added to improve the buckling strength, as material is added in the region of elevated stresses. Vanlaere [2] considers a configuration consisting of 2 longitudinal stiffeners with limited length above each support, combined with circumferential stiffeners at top and bottom (Fig. 1). These stiffeners are welded to the shell wall and are made from flat steel plate. The stringer stiffeners assist with the introduction of the supporting load into the shell wall, while the two ring stiffeners ensure that the shell wall remains its circular form. Moreover, the lower ring assists with the introduction of loads form the hopper into the barrel. Obviously, it is not the intention that the added local stiffening members fail before the ultimate strength of the shell wall is reached. Rather, the stiffening members must withstand higher loads than the shell wall itself. Fig. 1 shows an example where this condition is not met.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
6th European conference on steel and composite structures, Proceedings
editor
Laszlo Dunai, Miklos Ivanyi, Karoly Jarmai, Nauzika Kovacs and Laszlo Gergely Vigh
volume
A
pages
855 - 860
publisher
ECCS
place of publication
Brussels, Belgium
conference name
6th European Conference on Steel and Composite Structures (EUROSTEEL - 2011)
conference location
Budapest, Hungary
conference start
2011-08-31
conference end
2011-09-02
ISBN
9789291471034
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2999844
handle
http://hdl.handle.net/1854/LU-2999844
date created
2012-09-26 19:31:53
date last changed
2014-09-16 14:18:41
@inproceedings{2999844,
  abstract     = {Steel silos [1] are thin-walled cylindrical shell structures which are frequently supported by local supports or engaged columns. These discrete supports introduce high forces into the shell wall, resulting in axial compressive stress concentrations in the shell wall directly above the supports. Consequently, both buckling and yielding resistance are reduced due to these elevated compressive stresses. This premature instability phenomenon should be avoided at any time. Because of this, a local stiffening configuration near the supports is added to improve the buckling strength, as material is added in the region of elevated stresses. Vanlaere [2] considers a configuration consisting of 2 longitudinal stiffeners with limited length above each support, combined with circumferential stiffeners at top and bottom (Fig. 1). These stiffeners are welded to the shell wall and are made from flat steel plate. The stringer stiffeners assist with the introduction of the supporting load into the shell wall, while the two ring stiffeners ensure that the shell wall remains its circular form. Moreover, the lower ring assists with the introduction of loads form the hopper into the barrel. Obviously, it is not the intention that the added local stiffening members fail before the ultimate strength of the shell wall is reached. Rather, the stiffening members must withstand higher loads than the shell wall itself. Fig. 1 shows an example where this condition is not met.},
  author       = {Jansseune, Arne and De Corte, Wouter and Van Impe, Rudy},
  booktitle    = {6th European conference on steel and composite structures, Proceedings},
  editor       = {Dunai, Laszlo and Ivanyi, Miklos and Jarmai, Karoly and Kovacs, Nauzika and Vigh, Laszlo Gergely},
  isbn         = {9789291471034},
  language     = {eng},
  location     = {Budapest, Hungary},
  pages        = {855--860},
  publisher    = {ECCS},
  title        = {Locally supported cylinders with rigid stiffeners: elasto-plastic failure},
  volume       = {A},
  year         = {2011},
}

Chicago
Jansseune, Arne, Wouter De Corte, and Rudy Van Impe. 2011. “Locally Supported Cylinders with Rigid Stiffeners: Elasto-plastic Failure.” In 6th European Conference on Steel and Composite Structures, Proceedings, ed. Laszlo Dunai, Miklos Ivanyi, Karoly Jarmai, Nauzika Kovacs, and Laszlo Gergely Vigh, A:855–860. Brussels, Belgium: ECCS.
APA
Jansseune, A., De Corte, W., & Van Impe, R. (2011). Locally supported cylinders with rigid stiffeners: elasto-plastic failure. In Laszlo Dunai, M. Ivanyi, K. Jarmai, N. Kovacs, & L. G. Vigh (Eds.), 6th European conference on steel and composite structures, Proceedings (Vol. A, pp. 855–860). Presented at the 6th European Conference on Steel and Composite Structures (EUROSTEEL - 2011), Brussels, Belgium: ECCS.
Vancouver
1.
Jansseune A, De Corte W, Van Impe R. Locally supported cylinders with rigid stiffeners: elasto-plastic failure. In: Dunai L, Ivanyi M, Jarmai K, Kovacs N, Vigh LG, editors. 6th European conference on steel and composite structures, Proceedings. Brussels, Belgium: ECCS; 2011. p. 855–60.
MLA
Jansseune, Arne, Wouter De Corte, and Rudy Van Impe. “Locally Supported Cylinders with Rigid Stiffeners: Elasto-plastic Failure.” 6th European Conference on Steel and Composite Structures, Proceedings. Ed. Laszlo Dunai et al. A. Brussels, Belgium: ECCS, 2011. 855–860. Print.