Plasticity in shells is often contained near the ends of a segment where the bending stresses are significant. Outside of this local neighborhood the behavior is elastic. Thus, an axisymmetric shell can be divided along its axis into a purely elastic region away from an end and the local region where plasticity is present. The moment-curvature relation in the elastic-plastic region is calculated using the Tresca yield condition. Use of the Tresca yield condition greatly simplifies this derivation because the principal directions are known. This moment-curvature relationship is “exact” in the sense that only the standard assumptions of thin shell theory are made. The solutions of the elastic and plastic regions are matched at their intersection for an efficient numerical solution. The technique is used here to study the semi-infinite clamped cylindrical shell with an internal pressure loading.
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September 1987
Research Papers
Elastic-Plastic Analysis of Pressurized Cylindrical Shells
G. N. Brooks
G. N. Brooks
Department of Engineering Science and Mechanics, University of Tennessee, Knoxville, TN 37996-2030
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G. N. Brooks
Department of Engineering Science and Mechanics, University of Tennessee, Knoxville, TN 37996-2030
J. Appl. Mech. Sep 1987, 54(3): 597-603 (7 pages)
Published Online: September 1, 1987
Article history
Received:
January 10, 1986
Revised:
December 27, 1986
Online:
July 21, 2009
Citation
Brooks, G. N. (September 1, 1987). "Elastic-Plastic Analysis of Pressurized Cylindrical Shells." ASME. J. Appl. Mech. September 1987; 54(3): 597–603. https://doi.org/10.1115/1.3173075
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