Publication
Level set framework for the finite-element modelling of recrystallization and grain growth in polycrystalline materials
Related publications (43)
Theory for the failure stress of a quasi-equilibrium, brittle polycrystal with a small void fraction
An equilibrated polycrystalline material is considered, containing a small fraction of void space (melt or vapor), for which the crystals are above their roughening transition against this medium. The grain boundaries are approximated to have equal free en ...
Elsevier2011The Exact Hausdorff Measure of the Zero Set of Fractional Brownian Motion
Thomas Mountford, Driss Baraka
Let {X(t), t is an element of R-N} be a fractional Brownian motion in R-d of index H. If L(0,I) is the local time of X at 0 on the interval I subset of R-N, then there exists a positive finite constant c(=c(N,d,H)) such that ...
Springer US2011Towards the modelling of recrystallization phenomena in multi-pass conditions: application to 304L steel
Recrystallization, which can occur dynamically or statically, is an important phenomenon causing microstructure changes in deformed metals and therefore affecting the properties of the material. Even though extensive investigations have been carried out on ...
École Nationale Supérieure des Mines de Paris2011Liberalization and Competition in Postal Markets: Decentralized Infrastructure versus Cherry Picking
New entrants in postal markets usually set up delivery networks by concentrating on urban areas and large business customers. This implies that they operate their network highly centralized - at least in early phases of entrance. ...
2010Measurement and anisotropy of grain boundary energy in Cu-1 wt.% PB
Andreas Mortensen, Vincent Laporte, Doris Empl
A method is presented for the simultaneous measurement of relative grain boundary energy and all five macroscopic grain boundary degrees of freedom in leaded copper. When compared to the Wynblatt–Takashima model, results suggest a lowered boundary energy w ...
2010Adaptive mesh refinement and automatic remeshing in crystal plasticity finite element simulations
In finite element simulations dedicated to the modelling of microstructure evolution, the mesh has to be fine enough to: (i) accurately describe the geometry of the constituents; (ii) capture local strain gradients stemming from the heterogeneity in materi ...
2009Alumni Profiles
Former PhD students, post-docs and junior researchers of the Section de chimie et biochimie now holding positions at different universities and private companies remember the time they spent in Geneva and give an account of how this has set off and influen ...
2009Finite element model of primary recrystallization in polycrystalline aggregates using a level set framework
The paper describes a robust finite element model of interface motion in media with multiple domains and junctions, as is the case in polycrystalline materials. The adopted level set framework describes each domain (grain) with a single level set function, ...
2009Level set framework for the numerical modelling of primary recrystallization in polycrystalline materials
This letter describes a level set framework for the numerical modelling of primary static recrystallization in a polycrystalline material. The topological evolution of the grain structure is simulated in two and three dimensions, based on a kinetic law rel ...
2008Linking plastic deformation to recrystallization in metals using digital microstructures
Procedures for synthesizing digital polycrystalline microstructures are illustrated, from either 2D statistical data or 3D deterministic data. Finite element meshes representing the digital microstructures are generated using anisotropic and adaptive mesh ...
2008