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Influence des paramètres rhéologiques sur les limites de formage des tôles minces

Published online by Cambridge University Press:  21 March 2007

Hassan Fatmaoui ,
Rachid Mesrar  and
Jamal Chaoufi
Hassan Fatmaoui
Affiliation:
Laboratoire de Mécanique et Milieux Continus, Université Ibn Zohr, Faculté des Sciences, Agadir, Maroc
Rachid Mesrar
Affiliation:
Laboratoire de Mécanique et Milieux Continus, Université Ibn Zohr, Faculté des Sciences, Agadir, Maroc
Jamal Chaoufi
Affiliation:
Laboratoire de Mécanique et Milieux Continus, Université Ibn Zohr, Faculté des Sciences, Agadir, Maroc
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Abstract

Dans ce travail, la striction localisée des tôles minces est étudiée en utilisant une analyse de localisation type Marciniak-Kuczynski. Un nouveau critère de plasticité orthotrope est utilisé pour déterminer les limites de formage pour des chemins linéaires de déformation. Par ailleurs l'influence des paramètres rhéologiques du matériau sur les courbes limites de formage (CLF) a été étudiée et analysée ainsi que celui de la surface de charge.

Keywords

Plasticity criterionlocalization analysesforming limit diagramsCritère de plasticitéanalyse de localisationcourbes limites de formage
Type
Research Article
Information
Mechanics & Industry , Volume 7 , Issue 5-6 , September 2006 , pp. 497 - 503
Copyright
© AFM, EDP Sciences, 2007

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References

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