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An application of Chaboche model to predict uniaxial and multiaxial ratcheting

✍ Scribed by A.H. Mahmoudi; H. Badnava; S.M. Pezeshki-Najafabadi

Publisher
Elsevier
Year
2011
Tongue
English
Weight
720 KB
Volume
10
Category
Article
ISSN
1877-7058

No coin nor oath required. For personal study only.

✦ Synopsis

Chaboche model can be used to predict the ratcheting phenomenon. The parameter determination of this model to achieve an accurate ratcheting prediction is of great importance. Therefore, the application of an optimization procedure can improve the prediction of this model. In this research, Chaboche kinematic hardening model with five decomposed rules was used and a multi objective genetic algorithm (GA) was employed to determine the model parameters. The results were then compared with a single objective GA optimization procedure. The ratcheting prediction of the model was also verified using the uniaxial and multiaxial experimental data.

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