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A FINITE ELEMENT FORMULATION OF THE RIGID–PLASTIC LIMIT ANALYSIS PROBLEM

✍ Scribed by ANTONIO CAPSONI; LEONE CORRADI

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
521 KB
Volume
40
Category
Article
ISSN
0029-5981

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✦ Synopsis

A procedure for the finite element computation of the limit load of rigid-perfectly plastic solids is presented. The approach is based on the kinematic theorem of limit analysis, which is formulated so as to reduce the problem to the search of the essentially free minimum of a convex, but not everywhere differentiable, function. A conceptually simple solution strategy is presented and its effectiveness is demonstrated with reference to a few significant examples. Plane strain solids composed of materials governed by von Mises' plasticity condition are considered, but extensions to a more general context can be envisaged.

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