Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10419173 | Mechanics Research Communications | 2005 | 10 Pages |
Abstract
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.
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Authors
Ahmet N. Eraslan, Yusuf Orcan, UÄur Güven,