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Simulation of fatigue crack growth under consideration of cyclic plasticity

✍ Scribed by P. Zerres; R. Döring; M. Vormwald

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
846 KB
Volume
42
Category
Article
ISSN
0933-5137

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✦ Synopsis

Abstract

In this paper a procedure to simulate the crack growth under consideration of elastic‐plastic material behavior by means of the finite element method is described. Within this procedure, after each increment of crack advance, the structure is remeshed and the status variables, such as the components of the backstress‐tensor and the plastic strains, are transferred from the old mesh to the new one. Due to mapping of the variables, improper conditions are possibly prevailing at the beginning of the new analysis, which has to be captured by the used material routine. The main focus of this paper is to describe these necessary numerical adjustments.

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