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International Journal of Forming Processes
1292-7775
Publication suspended
 

 ARTICLE VOL 10/1 - 2007  - pp.23-43  - doi:10.3166/ijfp.10.23-43
TITLE
A Damage Constitutive Law for Steel at Elevated Temperature

ABSTRACT
This paper presents a methodology of damage analysis at elevated temperature using the finite element method. Both the model and the methodology to identify parameters are summarized. The mechanical properties are established using compression tests at elevated temperature. An elasto-visco-plastic model depending on temperature is identified. A metallographic analysis is used to determine the original size and morphology of the austenitic grains. The experimental damage analyses consist in acoustic tests in order to determine the apparition of the first crack during compression. Finite element simulations of these experiments allow the determination of the damage parameters using a reverse method.


AUTEUR(S)
Sylvie CASTAGNE, Didier TALAMONA, Anne-Marie HABRAKEN

KEYWORDS
Interface Damage Law, Parameters Identification, Steel, Elevated Temperature, Acoustic Tests, Finite Element Analysis.

LANGUE DE L'ARTICLE
Anglais

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