32 citations · 142 across the 16 of their papers we have counts for
16 papers
Efficient and accurate simulation of the Smith-Zener pinning mechanism during grain growth using a front-tracking numerical framework
Sebastian Florez, Marc Bernacki
This study proposes a new full-field approach for modeling grain boundary pinning by second phase particles in two-dimensional polycrystals. These particles are of great importance…
Comparison of grain growth mean-field models regarding predicted grain size distributions
Marion Roth, Baptiste Flipon, Nathalie Bozzolo +1
Mean-field models have the ability to predict grain size distribution evolution occurring through thermomechanical solicitations. This article focuses on a comparison of mean-field…
Modeling CDRX and PDRX during hot forming of zircaloy-4
Victor Grand, Baptiste Flipon, Alexis Gaillac +1
A recently developed full field level-set model of continuous dynamic recrystallization is applied to simulate zircaloy-4 recrystallization during hot compression and subsequent he…
Simulation of continuous dynamic recrystallization using a level-set method
Victor Grand, Baptiste Flipon, Alexis Gaillac +1
Dynamic recrystallization is one of the main phenomena responsible for microstructure evolutions during hot forming. Consequently, getting a better understanding of DRX mechanisms…
A level-set formulation to simulate diffusive solid/solid phase transformation in polycrystalline metallic materials -- Application to austenite decomposition in steels
Nitish Chandrappa, Marc Bernacki
Numerous full-field numerical methods exist concerning the digital description of polycrystalline materials and the modeling of their evolution during thermomechanical treatments.…
Characterization and modeling of the influence of initial microstructure on recrystallization of zircaloy-4 during hot forming
Victor Grand, Baptiste Flipon, Alexis Gaillac +1
The present article proposes a detailed study of recrystallization of zircaloy-4 under hot forming conditions by means of experimental and numerical tools. Thermomechanical tests a…
Level-Set modeling of grain growth in 316L stainless steel under different assumptions regarding grain boundary properties
Brayan Murgas, Baptiste Flipon, Nathalie Bozzolo +1
Two finite element level-set (FE-LS) formulations are compared for the modeling of grain growth of 316L stainless steel in terms of grain size, mean values and histograms. Two kind…
A 2D front-tracking Lagrangian model for the modeling of anisotropic grain growth
Sebastian Florez, Julien Fausty, Karen Alvarado +2
Grain growth is a well-known and complex phenomenon occurring during annealing of all polycrystalline materials. Its numerical modeling is a complex task when anisotropy sources su…
Comparative study and limits of different level-set formulations for the modeling of anisotropic grain growth
Brayan Murgas, Sebastian Florez, Nathalie Bozzolo +2
Four different finite element level-set (FE-LS) formulations are compared for the modeling of grain growth in the context of polycrystalline structures and, moreover, two of them a…
Statistical behaviour of interfaces subjected to curvature flow and torque effects applied to microstructural evolutions
Sebastian Florez, Karen Alvarado, Brayan Murgas +6
The movement of grain boundaries in pure metals and alloys with a low concentration of dislocations has been historically proved to follow curvature flow behavior. This mechanism i…
An examination of local strain fields evolution in ductile cast iron through micromechanical simulations based on 3D imaging
Victor Manuel Trejo Navas, Ante Buljac, François Hild +3
Microscopic digital volume correlation (DVC) and finite element precoalescence strain evaluations are compared for two nodular cast iron specimens. Displacement fields from \textit…
A new front-tracking Lagrangian model for the modeling of dynamic and post-dynamic recrystallization
Sebastian Florez, Karen Alvarado, Marc Bernacki
A new method for the simulation of evolving multi-domains problems has been introduced in previous works (RealIMotion), Florez et al. (2020) and further developed in parallel in th…
A novel highly efficient Lagrangian model for massively multidomain simulations: parallel context
Sebastian Florez, Julien Fausty, Karen Alvarado +2
A new method for the simulation of evolving multi-domains problems has been introduced in a previous work (RealIMotion), Florez et al. (2020). In this article further developments…
On the role of solute drag in reconciling laboratory and natural constraints on olivine grain growth kinetics
Jean Furstoss, Carole Petit, Andrea Tommasi +3
We investigate the effect of solute drag on grain growth (GG) kinetics in olivine-rich rocks through full field and mean field modelling. Considering a drag force exerted by impuri…
A new level set-finite element formulation for anisotropic grain boundary migration
J. Fausty, B. Murgas, S. Florez +2
Grain growth in polycrystals is one of the principal mechanisms that take place during heat treatment of metallic components. This work treats an aspect of the anisotropic grain gr…
Full-field modeling of heat transfer in asteroid regolith: Radiative thermal conductivity of polydisperse particulates
Andrew J. Ryan, Daniel Pino Muñoz, Marc Bernacki +1
Characterizing the surface material of an asteroid is important for understanding its geology and for informing mission decisions, such as the selection of a sample site. Diurnal s…