Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Peer Reviewed
See detailA 3D numerical model of the Northern Bering Sea
Nihoul, Jacques ULg; Waleffe, Fabian; Djenidi, Salim ULg

in Environmental Software (1986), 2

Detailed reference viewed: 58 (0 ULg)
Full Text
Peer Reviewed
See detail3D numerical models of FSW processes with noncylindrical pin
Bussetta, Philippe; Dialami, Narges; Chiumenti, Michele et al

in Advances in Materials and Processing Technologies (2016), 1(3-4), 275-287

Friction stir welding (FSW) process is a relatively recent welding process (patented in 1991). FSW is a solid-state joining process during which materials to be joined are not melted. During the FSW ... [more ▼]

Friction stir welding (FSW) process is a relatively recent welding process (patented in 1991). FSW is a solid-state joining process during which materials to be joined are not melted. During the FSW process, the behaviour of the material is at the interface between solid mechanics and fluid mechanics. In this paper, a 3D numerical model of the FSW process with a non-cylindrical tool based on a solid formulation is compared to another one based on a fluid formulation. Both models use advanced numerical techniques such as the arbitrary Lagrangian–Eulerian formulation, remeshing or the orthogonal subgrid scale method. It is shown that these two formulations essentially deliver the same results. [less ▲]

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detail3D numerical models using a fluid or a solid formulation of FSW processes with non-cylindrical pin
Bussetta, Philippe; Dialami; Chiumenti, Michele et al

in Advanced Modeling and Simulation in Engineering Sciences (2015), 2(27),

Friction Stir Welding (FSW) process is a relatively recent welding process (patented in 1991). FSW is a solid-state joining process during which materials to be joined are not melted. During the FSW ... [more ▼]

Friction Stir Welding (FSW) process is a relatively recent welding process (patented in 1991). FSW is a solid-state joining process during which materials to be joined are not melted. During the FSW process, the behavior of the material is at the interface between solid mechanics and fluid mechanics. In this paper, a 3D numerical model of the FSW process with a non-cylindrical tool based on a solid formulation is compared to another one based on a fluid formulation. Both models use advanced numerical techniques such as the Arbitrary Lagrangian Eulerian (ALE) formulation, remeshing or the Orthogonal Sub-Grid Scale method (OSS). It is shown that these two formulations essentially deliver the same results. [less ▲]

Detailed reference viewed: 55 (13 ULg)
Full Text
See detail3D particles characterization techniques – a review
Pirard, Eric ULg

in International Fine Particle Research Institute (2005)

Detailed reference viewed: 17 (2 ULg)
Peer Reviewed
See detail3D perfusion bioreactor culture of human periosteum derived stem cells for bone tissue engineering
Sonnaert, Maarten; Papantoniou, Ioannis; Bloemen, Veerle et al

Conference (2013)

Detailed reference viewed: 22 (1 ULg)
Full Text
Peer Reviewed
See detail3D periodic BE–FE model for various transportation structures interacting with soil
Chebli, Hamid; Othman, Ramzi; Clouteau, Didier et al

in Computers & Geotechnics (2008), 35(1), 22-32

A three-dimensional model for soil-transportation structures is presented. This model exploits the geometrical periodicity of the system and takes into account the dynamic soil–structure interaction with ... [more ▼]

A three-dimensional model for soil-transportation structures is presented. This model exploits the geometrical periodicity of the system and takes into account the dynamic soil–structure interaction with a methodology coupling a boundary element method for the soil and a finite element formulation for the structure. A general overview of this approach is given based on several real transportation structures. Moreover, comparative studies between the different structures have been carried out. Then the model is improved by introducing a general rule for the determination of the optimal number of cells. Finally, the periodic modes propagation is investigated offering a first seizing of the significant dynamical phenomena in the soil–structure system. [less ▲]

Detailed reference viewed: 31 (5 ULg)
Peer Reviewed
See detail3D Probabilistic Representations for Vision and Action
Piater, Justus ULg; Detry, Renaud ULg

Conference (2008)

Detailed reference viewed: 26 (3 ULg)
Full Text
See detail3D real-time auralization with separate rendering of direct sound, reflections and directional late reverberation
Lesoinne, Stéphane ULg; Werner, Nicolas; Embrechts, Jean-Jacques ULg

in Proceedings of the 2006 international Conference on Auditory Display (2006)

Detailed reference viewed: 48 (17 ULg)
See detail3D reference information needs and their impacts on data production
Billen, Roland ULg

Scientific conference (2011, November 25)

Detailed reference viewed: 15 (0 ULg)
See detailLa 3D selon Alfred Hitchcock: Dial M for Murder
Tomasovic, Dick ULg

Conference given outside the academic context (2014)

Analyse de la conception de la 3D dans le film d'Alfred Hitchcock, Dial M for Murder.

Detailed reference viewed: 17 (1 ULg)
Full Text
See detail3D Shape Optimization with X-FEM and a Level Set Constructive Geometry Approach
Van Miegroet, Laurent ULg; Duysinx, Pierre ULg

in Proceeding of the 8th World Congress on Structural and Multidisciplinary Optimization (2009, June)

This paper extends previous work on structural optimization with the eXtended Finite Element Method (X-FEM) and the Level Set description of the geometry. The proposed method takes advantage of fixed mesh ... [more ▼]

This paper extends previous work on structural optimization with the eXtended Finite Element Method (X-FEM) and the Level Set description of the geometry. The proposed method takes advantage of fixed mesh approach by using an X-FEM structural analysis method and from the geometrical shape representation of the Level Set description. In order to allow the optimization of complex geometries represented with a Level Set description, we apply here a Constructive Solid Geometry (CSG) approach with the Level Set geometrical representation. Hence, this extension allows to optimize any boundary of the structure that is defined with a coumpound Level Set. Design variables are the parameters of basic geometric primitives which are described with a Level Set representation and/or the control points of the NURBS curves that act as the definition of an advanced Level Set primitive. The number of design variables of this formulation remains small whereas global (i.e. compliance or eigenfrequency) and local constraints (i.e. stresses) can be considered. Our results illustrate that fixed grid optimization with X-FEM coupled to a Level Set geometrical description is a promising technique to achieve structural shape optimization. [less ▲]

Detailed reference viewed: 275 (14 ULg)
Full Text
Peer Reviewed
See detail3D shape perception in posterior cortical atrophy: a visual neuroscience perspective
Gillebert, Céline; Schaeverbeke, J.; Bastin, Christine ULg et al

in Journal of Neuroscience (2015), 35(37), 12673-12692

Detailed reference viewed: 71 (6 ULg)
Full Text
Peer Reviewed
See detail3D simulation of Industrial Hall in case of fire. Benchmark between ABAQUS, ANSYS and SAFIR
Vassart, Olivier; Cajot, Louis-Guy; O'Connor, Marc et al

in Interflam2004 Proceedings. Fire Sciences and Engineering Conference (2004, July)

For simple storey buildings, the structural behaviour in case of fire is relevant only for the safety of the firemen. The protection of occupants and goods is a matter of fire spread, smoke propagation ... [more ▼]

For simple storey buildings, the structural behaviour in case of fire is relevant only for the safety of the firemen. The protection of occupants and goods is a matter of fire spread, smoke propagation, active fire fighting measures and evacuation facilities. Brittle failure, progressive collapse and partial failure of façades elements outwards may endanger the fire fighters and have to be avoided. In order to deal with such an objective, the simulation softwares has to cover the 3D structural behaviour including membrane and restrained effects as well as the failure mode so that post-local failure stage can be analysed. Such calculation models (ANSYS, ABAQUS and SAFIR [1]) have been compared true a benchmark. In this benchmark, two different users used ABAQUS. [less ▲]

Detailed reference viewed: 222 (4 ULg)
See detail3D spatial models and analysis
Billen, Roland ULg

Scientific conference (2009, October 06)

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
See detail3D spatial relationships model: a useful concept for 3D cadastre?
Billen, Roland ULg; Zlatanova, Siyka

in Computers, Environment & Urban Systems (2003), 27(4), 411-425

Detailed reference viewed: 60 (12 ULg)
Peer Reviewed
See detail3D spatial relationships model: a useful concept for 3D cadastre?
Billen, Roland ULg; Zlatanova, Siyka

in Van Oosterom, Peter; Stoter, Jantine; Fendel, Elfriede (Eds.) Registration of properties in strata - International workshop on « 3D cadastre » (2001)

Detailed reference viewed: 65 (6 ULg)
See detail3D Stereo MEDIA 2016, an international event at the service of companies
Verly, Jacques ULg

Scientific conference (2016, October 05)

Detailed reference viewed: 29 (5 ULg)
Full Text
See detail3D thermo-elastic distortion measurements on OSIRIS SiC hardware by holographic interferometry and correlation with finite element models
Thizy, Cédric ULg; Eliot, Fabienne; Ballhause, Dirk et al

Conference (2012, March)

Detailed reference viewed: 57 (2 ULg)
Peer Reviewed
See detail3D turbulence field on the north-western european continental-shelf
Martin, Géraldine ULg; Delhez, Eric ULg

in Tellus : Series A (1994), 46(2), 98-112

The 3-dimensional, non-linear, baroclinic, GHER mathematical model for the study of mesoscale motions (time scale of several hours to several days: tides, storm surges, ...) is described. Particular ... [more ▼]

The 3-dimensional, non-linear, baroclinic, GHER mathematical model for the study of mesoscale motions (time scale of several hours to several days: tides, storm surges, ...) is described. Particular attention is paid to the turbulent closure based on an evolution equation for the turbulent kinetic energy and a parametric expression of the mixing length (k-model). Appropriate boundary conditions and numerical techniques (mode-splitting, implicity, sigma-coordinate system, advection scheme) are described. The model is applied to the simulation of the M2 tide on the North-Western European Continental Shelf not only without wind but also in typical winter and summer conditions. Large spatial variations of the turbulent kinetic energy appear as a result of the variations of depth and tidal activity around the shelf. These variations are clearly related to the different turbulence regimes observed in summer, with frontal structures separating well-mixed waters from stratified ones. The structure and evolution of the vertical profiles of turbulence variables are described and explained in barotropic and baroclinic conditions, under different wind forcings. The evolution of these profiles at the M2 tide frequency largely depends on the eccentricity of the tidal ellipse. [less ▲]

Detailed reference viewed: 56 (8 ULg)