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International Journal of Forming Processes
1292-7775
Publication suspended
 

 ARTICLE VOL 6/1 - 2003  - pp.33-52  - doi:10.3166/ijfp.6.33-52
TITLE
Analysis of a Constitutive Model for the Simulation of Dynamic Forming Processes

ABSTRACT
In the past years many authors have improved the formulation of solid metallic material behaviour in order to describe correctly the material flow of dynamic forming processes. Starting from different experimental data, a lot of these laws have been developed and introduced in different numerical models. This research is concerned with the formulation of an appropriate constitutive law which allows to describe the material behaviour at high strain and high strain rate and which is available to model the softening and transition phase phenomena. The principal formulation in terms of generalised strain rate and temperature is based on a Sellart and Tegart model and the dependency of the generalised strain uses an Avrami kinetic law.


AUTEUR(S)
Adinel GAVRUS, Eric RAGNEAU, Pascal CAESTECKER

KEYWORDS
Rheological Behaviour, Dynamic Loadings, Identification.

LANGUE DE L'ARTICLE
Anglais

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