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Experimental and numerical investigation of local stress and strain heterogeneities in a bainitic steel

Type
Conférences invitées
Author
DIARD, Olivier
531704 Électricité de France. Division Recherches et développement. Département OSIRIS
MATHIEU, Jean-Philippe
302313 EDF [EDF]
STUDER, Vincent
302313 EDF [EDF]
PESCI, Raphaël
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
INAL, Karim
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/11075
Date
2005

Abstract

A specific in-situ tensile device has been set up in an X-Ray diffractometer. Stress can be measured at low temperature during loading in the baintic steel and in the ferritic phase. A two-scale modeling has been proposed and evaluated on three levels, means stress in the baintic steel, stress in the ferritic phase and stress heterogeneities in the ferritic phase. Simulations are in general agreement with experiments.

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