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See detailCoupled mechanical-electrostatic FE-BE analysis with FMM acceleration
V Sabariego, Ruth ULg; Gyselinck, Johan; Dular, Patrick ULg et al

in COMPEL (2004), 23(4), 876-884

This paper deals with the coupled mechanical-electrostatic analysis of a shunt capacitive MEMS switch. The mechanical and electrostatic parts of the problem are modelled by the FE and BE methods ... [more ▼]

This paper deals with the coupled mechanical-electrostatic analysis of a shunt capacitive MEMS switch. The mechanical and electrostatic parts of the problem are modelled by the FE and BE methods, respectively. The fast multipole method is applied to reduce the storage requirements and the computational cost of the BE electrostatic model An adaptive truncation expansion of the 3D Laplace Green function is employed The strong interaction between the mechanical and electrostatic systems is considered iteratively. [less ▲]

Detailed reference viewed: 53 (13 ULg)
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See detailA coupled mechanobioregulatory model for the simulation of peri-implant bone formation in an in vivo bone chamber
Geris, Liesbet ULg; Vandamme, K.; Duyck, J. et al

in Proceedings of the second thematic workshop of the European Society of Biomechanics on Finite Element modelling in Biomechanis and Mechanobiology (2007, August)

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See detailCoupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia breakup and major glaciations
Godderis, Yves; Donnadieu, Yannick; Dessert, Celine et al

in Comptes Rendus Geoscience (2007), 339(3-4), 212-222

A coupled climate-geochemical model of new generation (GEOCLIM) is used to investigate the possible causes of the initiation of snowball glaciations during Neoproterozoic times. This model allows the ... [more ▼]

A coupled climate-geochemical model of new generation (GEOCLIM) is used to investigate the possible causes of the initiation of snowball glaciations during Neoproterozoic times. This model allows the calculation of the partial pressure of atmospheric CO2 simultaneously with the climate at the continental surface with a rough 2D spatial resolution (10 degrees lat. x 50 degrees long.). We calculate that the breakup of the Rodinia supercontinent, starting 800 Myr ago, results in a global climatic cooling of about 8 degrees C triggered by enhanced consumption of atmospheric CO2 resulting from increased runoff over continental surfaces. This increase in runoff is driven by the opening of oceanic basins resulting in an increase of soil moisture sources close to continental masses. This climatic effect of the supercontinent breakup is particularly strong within the 800-700 Ma interval since all continents are located in the equatorial area, where temperature and runoff conditions optimize the consumption of CO2 through weathering processes. However, this effect alone is insufficient to trigger snowball. We propose that the efficient weathering of fresh basaltic surfaces that erupted during the Rodinia breakup, and were transported to the humid equatorial area through continental plate motion, contributed the necessary CO2 sink that triggered the ca. 730-Ma Sturtian glacial event. Simulations of the GEOCLIM model for the ca 580-Ma Gaskiers ice age, where all continents are centered on the South Pole, shows that no snowball glaciation can be initiated. The calculated CO2 partial pressure remains above 1000 ppmv, while a threshold of less than 80 ppmv is required to initiate a snowball glaciation. At that time, a polar configuration does not allow the onset of total glaciation. Nevertheless, a regional glaciation is simulated by the GEOCLIM when the climatic and geochemical (i.e. weathering related) effects of the Pan-African orogeny (similar to 600 Ma) are taken into account. Finally, the question of the role of the paleogeographic setting in the Marinoan snowball event (similar to 635 Ma) is still an open question, since no reliable Marinoan paleogeographic reconstruction exists due to the paucity of paleomagnetic data. [less ▲]

Detailed reference viewed: 56 (3 ULg)
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See detailCoupled modelling of an excavation in a brittle formation
Collin, Frédéric ULg; Li, Xian Ling; Chambon, René et al

Conference (2006)

This paper is concerned with the coupling effects existing between the mechanical problem and the water diffusion process during an excavation, in relation with the nuclear waste disposal concepts. The ... [more ▼]

This paper is concerned with the coupling effects existing between the mechanical problem and the water diffusion process during an excavation, in relation with the nuclear waste disposal concepts. The hydromechanical coupling effects are first evidenced. Then, the permeability variation with damage is studied. Finally, different kind of flow boundary condition are considered. Their influence on the cavity convergence is highlighted and their effect on strain localisation process as well. [less ▲]

Detailed reference viewed: 14 (1 ULg)
See detailCoupled modelling of global ocean circulation and carbon cycle
Mouchet, Anne ULg

Conference (1999, May)

Detailed reference viewed: 3 (0 ULg)
See detailCoupled modelling of the global chemical-climatic changes due to human activities
Gérard, Jean-Claude ULg; François, Louis ULg; Delire, C. et al

in Proceedings of the global change symposium (1993)

Detailed reference viewed: 23 (9 ULg)
Peer Reviewed
See detailCoupled physical, chemical and biological models
Nihoul, Jacques ULg; Djenidi, Salim ULg

in Brink, Kenneth H.; Robinson, Allan R. (Eds.) The Global Coastal Ocean, Processes and Methods (1998)

Detailed reference viewed: 24 (2 ULg)
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See detailCoupled PIXE and RBS using a 6MeV 4He2+ external beam: a new experimental device for particle detection and dose monitoring.
Mathis, François ULg; Moignard, Brice; Pichon, Laurent et al

in Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2005), 240

Detailed reference viewed: 15 (6 ULg)
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See detailCoupled thermo-hygro-mechanical simulation of a convective drying process
Léonard, Angélique ULg; Crine, Michel ULg; Jomaa, Wahbi

Conference (2008, May)

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See detailCoupled thermo-magnetic simulation of a foil-winding transformer connected to a non-linear load
Driesen, Johan; Deliège, Geoffrey ULg; Belmans, Ronnie et al

in IEEE Transactions on Magnetics (2000), 36(4), 1381-1385

Detailed reference viewed: 9 (0 ULg)
See detailCoupled thermo-magnetic simulation of a foil-winding transformer connected to a non-linear load
Driesen, Johan; Deliège, Geoffrey ULg; Hameyer, Kay

in 12th Conference on the Computation of Electromagnetic Fields-COMPUMAG, Sapporo, Japan, October 25-28, 1999 (1999)

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See detailCoupled thermo-mechanical-metallurgical analysis during the cooling of steel pieces
Habraken, Anne ULg; Bourdouxhe, M.

in European Journal of Mechanics A : Solids (1992), 11(3), 381-402

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See detailA coupled thermo-viscoplastic formulation at finite strains for the numerical simulation of superplastic forming
Adam, Laurent; Ponthot, Jean-Philippe ULg

in Journal of Materials Processing Technology (2003), 139

This paper deals with a thermo-elasto-viscoplastic formulation for the simulation of metal forming involving large deformations. The authors present the governing equations of the model and some ... [more ▼]

This paper deals with a thermo-elasto-viscoplastic formulation for the simulation of metal forming involving large deformations. The authors present the governing equations of the model and some applications to superplastic forming. The numerical examples illustrate the potentiality of the finite-element code METAFOR based on this formulation. (C) 2003 Elsevier Science B.V. All rights reserved. [less ▲]

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See detailA coupled thermo-viscoplastic formulation at finite strains for the numerical simulation of superplastic forming
Adam, Laurent; Ponthot, Jean-Philippe ULg

in Materials Science Forum (2001), 357-359

This paper is concerned with the numerical simulation of hot metal forming, especially superplastic forming. A complete thermo-viscoplastic formulation at finite strains is derived and a unified stress ... [more ▼]

This paper is concerned with the numerical simulation of hot metal forming, especially superplastic forming. A complete thermo-viscoplastic formulation at finite strains is derived and a unified stress update algorithms for thermo-elastoplastic and thermo-elastoviscoplastic constitutive equations is obtained. The resulting unified implicit algorithm is both efficient and very inexpensive. Finally, numerical simulations of superplastic forming are exposed. [less ▲]

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See detailCoupled thermogravitational and thermocapillary instabilities in viscoelastic liquids
Dauby, Pierre ULg; Parmentier, Patrice; Lebon, Georgy ULg

in Proceedings of the ELGRA Meeting and General Assembly, April 5-7, 1993, Genova (Italy) (1993)

Detailed reference viewed: 6 (1 ULg)
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See detailCoupled Thermomechanical Analysis with Microstructural Computation of Steel Pieces
Habraken, Anne ULg

in Thompson, E. G.; Wood, R. D.; Zienkiewicz, O. C. (Eds.) et al Proceedings of NUMIFORM 89 Numerical Method in Industrial Forming Processes (1989)

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See detailA coupled two-scale computational approach for masonry out-of-plane failure
Massart, T. J.; Mercatoris, Benoît ULg

in 12th International Conference on Fracture 2009, ICF-12 5 (2009)

The formulation of macroscopic constitutive laws for the behaviour of masonry is a complex task, due to its strongly heterogeneous microstructure which influences its overall mechanical behaviour. This ... [more ▼]

The formulation of macroscopic constitutive laws for the behaviour of masonry is a complex task, due to its strongly heterogeneous microstructure which influences its overall mechanical behaviour. This has triggered in the past decade the formulation of homogenisation methods, both for linear and damaging behaviours, and for in and out-of-plane loading conditions. This contribution deals with two-scale computational framework, in which the material behaviour of a structural masonry shell is sampled by resorting to computational homogenisation applied on a microstructural description of masonry constituents. The structural damaging behaviour is modelled by incorporating localising hinges in a coarse scale thin shell description. The appearance, the orientation and the softening mechanical response of these hinges are directly deduced from the computational homogenisation scheme. This procedure allows incorporating naturally the anisotropic damaging effects of the masonry material degradation. The contribution will illustrate the two-scale results by comparing them to full fine scale models. [less ▲]

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See detailA coupled two-scale computational approach for masonry plates at failure
Massart, T. J.; Mercatoris, Benoît ULg

in Computational Plasticity - Fundamentals and Applications, COMPLAS IX (PART 1) (2007)

Detailed reference viewed: 11 (2 ULg)
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See detailA coupled two-scale computational approach for masonry shells at failure
Mercatoris, Benoît ULg; Bouillard, Philippe; Massart, Thierry J.

in Second Euromediterranean symposium on Advanced in Geomaterials and Structures (AGS08) (2008)

Detailed reference viewed: 6 (1 ULg)