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A finite element method for plane stress problems with large elastic and plastic deformations

✍ Scribed by Kirchner, E. ;Reese, St. ;Wriggers, P.

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 217 KB
Volume: 13
Category: Article
ISSN: 1069-8299
DOI: 10.1002/(sici)1099-0887(199712)13:12<963::aid-cnm115>3.0.co;2-3

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✦ Synopsis

A two-dimensional ®nite element method is developed for large deformation plasticity. Principal axes are used for the description of the material behaviour, and the use of principal logarithmic stretches leads to exact formulae for ®nite deformation problems with large elastic and plastic strains. An ecient return mapping algorithm and the corresponding consistent tangent are derived and applied to plane stress problems. Two examples show the performance of the proposed formulation.

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