A linear buckling analysis is presented for annular elastoplastic plates under shear loads. The standard plate buckling equations are used in conjunction with the small strain J2 flow and deformation theories of plasticity. The main numerical finding is that deformation theory predicts critical loads which are considerably below the predictions obtained with the flow theory. Furthermore, comparison with experimental data for different metals shows a good agreement with the deformation theory results over a wide range of geometries. The limiting buckling problem of a long narrow panel under shear stresses is treated separately. This problem admits an exact solution and it is shown that the critical loads for the panel are approached asymtotically by the annular plate results. Contact is made with earlier studies on the buckling of elastic-orthotropic and elastoplastic shear panels.
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September 1989
Research Papers
Elastoplastic Buckling of Annular Plates in Pure Shear
E. Ore
Technion–I.T.T., Haifa 32000, Israel
D. Durban
Technion–I.T.T., Haifa 32000, Israel
J. Appl. Mech. Sep 1989, 56(3): 644-651 (8 pages)
Published Online: September 1, 1989
Article history
Received:
June 27, 1988
Revised:
October 14, 1988
Online:
July 21, 2009
Citation
Ore, E., and Durban, D. (September 1, 1989). "Elastoplastic Buckling of Annular Plates in Pure Shear." ASME. J. Appl. Mech. September 1989; 56(3): 644–651. https://doi.org/10.1115/1.3176141
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