Abstract
Tee-section columns have been tested under conditions that provide a close relationship between the results so obtained and the behavior of certain classes of stiffenedplate structures. It is shown that severe imperfection sensitivity arises when the overall column critical load is coincident, or nearly coincident, with the local torsional critical load of the stiffener. And, although the present results are clearly not directly applicable to stiffened-plate design, it is suggested that, it these systems are to be designed with even greater material efficiencies than at present, the interactive mechanics observed could acquire increasing design importance. Accordingly, suggestions are made as to the form of research needed to provide a rational basis for the design of such ‘optimized’ stiffened-plate structures.
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Abbreviations
- b :
-
spacing between stiffeners
- d :
-
depth of stiffeners
- D :
-
flexural rigidity of stiffener plate
- e :
-
eccentricity of axial load
- e o :
-
fabrication imperfection
- E :
-
modulus of elasticity
- F :
-
force in load cell
- F o :
-
initial force in load cell
- I :
-
second moment of area of T-section
- k :
-
constant used for local critical load
- ℓ:
-
wavelength of local critical mode—lateral stiffener spacing
- L :
-
length of model
- P :
-
axial load
- P b :
-
maximum or buckling load
- P crit :
-
minimum critical load
- P E :
-
overall or ‘Euler’ critical load
- P L :
-
local critical load
- P y :
-
uniform axial-compression yield load
- t :
-
thickness of stiffener and flange plates
- δ:
-
maximum overall deformation of model
- μ:
-
Poisson's ratio
References
Wei-Wen Yu., Cold-formed Steel Structures, McGraw-Hill Book Co. (1973).
Zahorski, A., “Effects of Material Distribution on Strength of Panels,”J. Aero. Sci.,XI (3),247–253 (Jul.1944).
Shanley, F.R., Weight-strength Analysis of Aircraft Structures, McGraw-Hill Book Co. (1952).
Gerard, G., Minimum Weight Analysis of Compression Structures, N. Y. U. Press, New York (1956).
Koiter, W.T. andSkaloud, M., “Interventions”, presented in “Comportement posteritiques des plaques utilisees en construction metallique”, Int. Colloquium held at University of Liege, 1962, Memoires Soc. Royale Sci. de Liege, Series 5,VIII (5),64–68,103–104 (1962).
Hutchinson, J.W. andKolter, W.T., “Post-buckling Theory,”Appl. Mech. Rev.,23,1353–1366 (1970).
Rao, S.S., “Optimization of Complex Structures to Satisfy Static, Dynamic and Aeroelastic Requirements,”Int. J. Num. Meth. in Engrg.,8,249–269 (1973).
Avent, R.R. andRobinson, J.H., “Elastic Stability of Polygon Folded Plate Columns,”Proc. A.S.C.E.,102 (ST5),1015–1030 (May1976).
Neut, A. van der, “The Interaction of Local Buckling and Column Failure of Thin-walled Compression Members,” Proc. 12th Int. Cong. Appl. Mech., Stanford, 1968, Hetényi, M. and Vinceti, W.G., eds., Springer Verlag, 389 (1969).
Koiter, W.T. and Kuiken, G.D.L., The Interaction between Local Buckling and Overall Buckling on the Behavior of Built-up Columns, WTHD Rep. 23 Delft (1971).
Neut, A. van der, “The Sensitivity of Thin-walled Compression Members to Column Axis Imperfections,”Int. J. Solids and Struct.,9,999–1011 (1973).
Thompson, J.M.T. andLewis, G.M., “On the Optimum Design of Thin-walled Compression Members,”J. Mech. and Phys. Solids,20,101–109 (1972).
Svenson, S.E. and Croll, J.G.A., “Interaction between Local and Overall Buckling,” Int. J. Mech. Sci., 307–321 (1975).
Thompson, J.M.T., Tulk, J. and Walker, A.C., “An Experimental Study of Imperfection Sensitivity in the Interactive Buckling of Stiffened Plates,” Proc. I.U.T.A.M. Symp. Buckling Struct., Harvard (1974); Springer Verlag (1974).
Timoshenko, S., “Theory of Elastic Stability,”McGraw-Hill Book Co., New York and London (1936).
Murray, N.W., “Buckling of Stiffened Panels Loaded Axially and in Bending,” Struct. Eng.,51 (8), (1973).
Croll, J.G.A., “Towards Simple Estimates of Shell Buckling Loads,”Der Stahlbau, Part I,8,243–248 (1975);Part II,9,283–285 (1975).
Croll, J.G.A., “Model of Interactive Buckling of Stiffened Plates,”J. Engrg. Mech. Div., Proc. A.S.C.E.,101 (EM5),575–591 (1975).
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Ellinas, C.P., Kaoulla, P., Kattura, S. et al. Tests on interactive buckling of stiffened plates. Experimental Mechanics 17, 455–462 (1977). https://doi.org/10.1007/BF02324668
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DOI: https://doi.org/10.1007/BF02324668