Limit Loads Using Extended Variational Concepts in Plasticity

[+] Author and Article Information
R. Seshadri

Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada A1B 3X5e-mail: sesh@engr.mun.ca

J. Pressure Vessel Technol 122(3), 379-385 (Apr 03, 2000) (7 pages) doi:10.1115/1.556196 History: Received February 01, 2000; Revised April 03, 2000
Copyright © 2000 by ASME
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Relaxation locus, constraint parameter, and reference stress
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Nesting surfaces of dissipation—two-bar structure; (a) a pin-jointed two-bar structure, (b) nesting surfaces in generalized load space for the two-bar structure
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m0 and m versus iteration variable, ζ
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Identification of the reference volume, VR
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Leapfrogging to the limit state
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Determination of mα—a graphical interpretation
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Torispherical head geometry
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Torispherical head: m0,m, and mα versus V/VT
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Nonsymmetric plate structure




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