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Elastoplastic analysis of nonlinearly hardening variable thickness annular disks under external pressure
Date
2005-05-01
Author
Eraslan, Ahmet Nedim
Orcan, Y
Guven, U
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Based on von Mises' yield criterion, deformation theory of plasticity and Swift's hardening law, elasto-plastic deformation of variable thickness annular disks subjected to external pressure is studied. A nonlinear shooting method using Newton's iterations with numerically approximated tangent is designed for the solution of the problem. Considering a thickness profile in the form of a general parabolic function, the condition of occurrence of plastic deformation at the inner and outer edges of the annular disk is investigated. A critical disk profile is determined and the corresponding elastic-plastic stresses as well as the residual stress distribution upon removal of the applied pressure are computed and discussed.
Subject Keywords
Mechanical Engineering
,
General Materials Science
,
Mechanics of Materials
,
Civil and Structural Engineering
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/46244
Journal
MECHANICS RESEARCH COMMUNICATIONS
DOI
https://doi.org/10.1016/j.mechrescom.2004.06.002
Collections
Department of Engineering Sciences, Article