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FEM Study of Metal Sheets with a Texturebased, Local Description of the Yield Locus

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FEM Study of Metal Sheets with a Texture based, Local Description of the Yield Locus

Thèse présentée en vue de l’obtention du grade de Docteur en Sciences Appliquées

par Laurent Duchêne Année académique 2002-2003

Faculté des Sciences Appliquées Génie Civil et Géologie

Département de Mécanique des matériaux et Structures Secteur Mécanique des Solides et des Matériaux

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Membres du Jury : A. Magnée (Prof ULG, président du jury) S. Cescotto (Prof ULG)

A. M. Habraken (Maître de recherches FNRS, promoteur) J. Lecomte-Beckers (Chargée de cours ULG)

P. Van Houtte (Prof KUL)

G. Cailletaud (Prof Ecole des Mines de Paris) X. Lemoine (Ledepp, Arcelor R&D)

F. Barlat (Materials Science Division, ALCOA technical center)

Coordonnées de l’auteur : Duchêne Laurent Département M&S Université de Liège 1, chemin des Chevreuils 4000 Liège

Belgique

e-mail : l.duchene@ulg.ac.be

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Acknowledgements

I would like to thank the Région Wallonne for its support. The steel research centre RDCS is acknowledged for performing the experimental deep drawing tests.

I also express my grateful thanks to:

- Anne Marie Habraken, André Godinas and Serge Cescotto for their help in the development of the presented model;

- The research team of professor Paul Van Houtte for providing us the texture treatment modules and for performing the texture measurements;

- The members of the jury who accepted to judge my work.

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