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Elasto-viscoplastic and elasto-plastic large deformation analysis of thin plates and shells

✍ Scribed by L. M. S. Dinis; D. R. J. Owen

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
696 KB
Volume
18
Category
Article
ISSN
0029-5981

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✦ Synopsis

Abstract

To account for plastic deformation in plate and shell structures an elasto‐viscoplastic solution algorithm is considered based on Perzyna's model for material behaviour. This algorithm can be employed to solve for time‐dependent elasto‐viscoplastic situations and by allowing steady‐state conditions to be reached, elasto‐plastic problems can also be considered.

For the large displacement elasto‐viscoplastic analysis of thin shells, an incremental stiffness procedure is employed together with a Lagrangian description of the stress and strain vectors. The Semiloof plate and shell elements are used for finite element space discretization.

The procedures developed are applied to the solution of several numerical examples and the solutions compared with results from other sources where available.

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