Modeling of Semisolid Flow
TypeChapitres d'ouvrages scientifiques
Numerical simulation of semisolid processing can be carried out using one- or two-phase modeling. Various models based from either fluid or solid mechanics formalisms were developed. The most sophisticated one-phase models account for shear thinning, thixotropy, and solidification/melting phenomena. They are of great interest to investigate the flow front and optimize die geometry, temperature of die, and billet. Liquid-solid segregation prediction requires two-phase modeling. Basic equations and constitutive models currently used for numerical simulation of semisolid processing are presented and discussed.
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Micromechanical modeling if the interactions between the microstructure and the dissipative deformation mechanisms in steels under cyclic loading MAREAU, Charles; FAVIER, Véronique; WEBER, Bastien; GALTIER, André; BERVEILLER, Marcel (Elsevier, 2012)A micromechanical model is proposed to describe the interactions between the microstructure and the dissipative deformation mechanisms in ferritic steels under cyclic loading. The model aims at optimizing the microstructure ...
Procédé de perçage par laser : Comparaison entre des données expérimentales et une simulation 2D basée sur la méthode CNEM GIRARDOT, Jérémie; RANC, Nicolas; SCHNEIDER, Matthieu; LORONG, Philippe; ILLOUL, Lounès; BERTHE, Laurent; FAVIER, Véronique (Congrès français de mécanique (21 ; 2013 ; Bordeaux (Gironde), 2013)This work presents a numerical alternative for the laser drilling simulation problem. Using finite element method is difficult to simulate the hole propagation over time, especially because of moving boundaries due to a ...
TORABIAN, Noushin; FAVIER, Véronique; ZIAEI-RAD, Saeed; DIRRENBERGER, Justin; ADAMSKI, Frédéric; RANC, Nicolas (Elsevier, 2016)The present work employed in situ infrared thermography to investigate the thermal response and dissipative mechanisms of a dual-phase steel under ultrasonic tension-compression fatigue testing. A classical thermal response ...
PHUNG, Ngoc-Lam; MARTI, Nicolas; BLANCHE, Antoine; RANC, Nicolas; FAVIER, Véronique; CHRYSOCHOOS, André; SAINTIER, Nicolas; GREGORI, Fabienne; BACROIX, Brigitte; THOQUENNE, Guillaume (Elsevier, 2013)The DISFAT project is a French project financially supported by the French National Agency for Research (ANR). It aims at a deeper understanding of mechanisms leading to crack initiation in metals and alloys under Very ...
Comparison between numerical simulation of semisolid ﬂow into a die using FORGE© and in situ visualization using a transparent sided die NEAG, Adriana; FAVIER, Véronique; BIGOT, Régis; ATKINSON, Helen Valerie (Elsevier, 2016)Semi-solid processing is a promising forming process for shaping metallic alloys in one shot. Numerical simulations are of great interest for optimizing the process. Generally, numerical simulation results are compared ...