Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
511387 | Computers & Structures | 2007 | 13 Pages |
Abstract
An efficient return algorithm for stress update in numerical plasticity computations is presented. The yield criterion must be linear in principal stress space and can be composed of any number of yield planes. Each of these yield planes may have an associated or non-associated flow rule. The stress return and the formation of the constitutive matrix is carried out in principal stress space. Here the manipulations simplify and rely on geometrical arguments. The singularities arising at the intersection of yield planes are dealt with in a straightforward way also based on geometrical considerations. The method is exemplified on non-associated Mohr–Coulomb plasticity throughout the paper.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Johan Clausen, Lars Damkilde, Lars Andersen,