References of "Habraken, Anne"
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See detailSwaged bolts: modelling of the installation process and numerical analysis of the mechanical behaviour
Drean, M.; Habraken, Anne ULg; Bouchaïr, A. et al

in Computers & Structures (2002), 80

Swaged bolts are an alternative to high strength bolts in steel structures. To clarify the steps of the installation process, numerical modelling has been carried out. The relevant phenomena are described ... [more ▼]

Swaged bolts are an alternative to high strength bolts in steel structures. To clarify the steps of the installation process, numerical modelling has been carried out. The relevant phenomena are described and evaluated. This numerical calculation accounts for large displacements, large strains, mechanical plasticity and friction contact between the components of swaged bolts. The non-linear finite element code ‘‘Lagamine’’ designed for the simulation of metal forming processes has been used to provide the stress distributions in the components. [less ▲]

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See detailTexture evolution during deep-drawing processes
Duchene, Laurent ULg; Godinas, A.; Cescotto, Serge ULg et al

in Journal of Materials Processing Technology (2002), 125-126

This paper presents a constitutive law based on Taylor’s model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method ... [more ▼]

This paper presents a constitutive law based on Taylor’s model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method has been developed. This local yield locus model uses a discrete representation of the material’s texture. The interpolation method is presented and a deep-drawing application is simulated in order to show up the influence of the texture evolution during forming processes. [less ▲]

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See detailMicro-mechanical analysis of steel sheet behaviour during deep-drawing
Duchene, Laurent ULg; Godinas, A.; Habraken, Anne ULg et al

in Proceedings of the First Asian-Pacific Congress on Computational Mechanics: APCOM 2001 (2001)

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See detailAnisotropic elastoplastic model based on texture
Habraken, Anne ULg; Duchene, Laurent ULg; Godinas, André et al

in Handbook of materials behavior models (2001)

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See detailInfluence of steel anisotropy during deep-drawing process
Duchene, Laurent ULg; Habraken, Anne ULg; Godinas, A.

in Habraken, Anne (Ed.) Proceedings of the 4th international Conference ESAFORM (2001)

This paper presents a constitutive law based on Taylor's model implemented in our finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method has been ... [more ▼]

This paper presents a constitutive law based on Taylor's model implemented in our finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method has been developed. This local yield locus model uses a discrete representation of the texture. The interpolation method is presented and a deep-drawing application is simulated in order to show up the influence of the texture evolution during forming processes. [less ▲]

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See detailFinite element modelling of thermo-mechanical behaviour of a steel strand in continuous casting
Pascon, Frédéric ULg; Habraken, Anne ULg; Bourdouxhe, Michel et al

in Proceedings of the 7th European Conference on Advanced Materials and processes (Euromat 2001) (2001)

An elastic-viscous-plastic constitutive law (Norton-Hoff type) is coupled to a contact law in a finite element code in order to model the behaviour of a steel strand in the mould of a continuous casting ... [more ▼]

An elastic-viscous-plastic constitutive law (Norton-Hoff type) is coupled to a contact law in a finite element code in order to model the behaviour of a steel strand in the mould of a continuous casting machine. Both thermal and mechanical type fields are computed. The objective is to compare for different industrial process conditions the thickness of the solidified shell as well as the stress and strain levels in this layer. More particularly, the model should lead to optimise the taper of the mould for different cross sections of steel strand. [less ▲]

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See detailA fully coupled anisotropic elasto-plastic-damage model
Cescotto, Serge ULg; Wauters, Michaël; Habraken, Anne ULg et al

in Handbook of Materials Behavior Models (2001)

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See detailAnisotropic Elastoplastic Model Based on Texture
Habraken, Anne ULg

in Lemaitre Handbook of Materials Behavior Models (2001)

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See detailImplementation of a texture based interpolated yield locus in a FEM code
Duchene, Laurent ULg; Habraken, Anne ULg; Godinas, A.

in Balkema (Ed.) Proceedings of NUMIFORM 2001 (Simulation of Materials Processing: Theory, Methods and Applications) (2001)

This paper presents a constitutive law based on Taylor's model implemented in our non linear finite element code LAGAMINE. The yield locus is only described and a particular interpolation method has been ... [more ▼]

This paper presents a constitutive law based on Taylor's model implemented in our non linear finite element code LAGAMINE. The yield locus is only described and a particular interpolation method has been developed. This local yield locus model uses a discrete representation of the material's texture. The interpolation method is presented and a deep-drawing application is simulated in order to show up the influence of the texture evolution during forming processes. [less ▲]

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See detailModelling of the micro-mechanical behaviour of steel sheets during deep-drawing
Duchene, Laurent ULg; Godinas, A.; Habraken, Anne ULg et al

in Duflou, J. R.; Geiger, M.; Kals, H. J. J. (Eds.) et al Proceedings of the 9th International Conference on Sheet Metal (2001)

This abstract presents a constitutive law based on Taylor's model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation ... [more ▼]

This abstract presents a constitutive law based on Taylor's model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method has been developed. This local yield locus model uses a discrete representation of the material's texture. The interpolation method is presented and a deep-drawing application is simulated in order to show up the influence of the texture evolution during forming processes. [less ▲]

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See detailFinite element modeling of thermo-mechanical behaviour of a steel strand in continuous casting
Pascon, Frédéric ULg; Habraken, Anne ULg; Bourdouxhe, M. et al

in Habraken, Anne (Ed.) Proceedings of the 4th International Conference ESAFORM (2001)

Surface and internal quality of continuous cast products depends very much upon the behaviour of the strand in the mould. Among the parameters likely to influence this behaviour, the mould taper takes a ... [more ▼]

Surface and internal quality of continuous cast products depends very much upon the behaviour of the strand in the mould. Among the parameters likely to influence this behaviour, the mould taper takes a prominent part. In order to understand better the influence of this parameter, we have build up a thermo-mechanical finite element model. the model includes an elasto-visco-plastic law to describe the behaviour of steel from liquid to solid state, a thermo-mechanical element that takes into account thermal expansion and mechanical behaviour of the strand, a unilateral contact element, a mobile rigid boundary element to model the mould and its taper and an adapted loading element to model the ferrostatic pressure according to the liquid or solid state. [less ▲]

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See detailModélisation des phénomènes thermomécaniques dans une lingotière de coulée continue
Pascon, Frédéric ULg; Habraken, Anne ULg; Bourdouxhe, M. et al

in Mécanique & Industries (2000), 1

Modelling of the thermomechanical phenomena in a mould of continuous casting. The surface and internal quality of continuous cast products depends very much on the behaviour of the strand in the mould ... [more ▼]

Modelling of the thermomechanical phenomena in a mould of continuous casting. The surface and internal quality of continuous cast products depends very much on the behaviour of the strand in the mould during solidification. Among the parameters likely to influence this behaviour, the mould taper takes a prominent part. We developed a thermomechanical 2D model of the strand in the mould using the finite element code LAGAMINE. A slice of the strand is defined perpendicularly to the casting axis with the following boundary conditions: symmetry with principal axes of the section (double symmetry), frictional unilateral contact with the mould surface and imposed mould temperature. The approach uses the generalised plane strain state that allows a variable thickness of the slice in time, and provides one equation for the vertical force equilibrium. The ferrostatic pressure is also taken into account. Due to the mould taper, the geometry of the mould is not constant, but varies as the slice is moving down. The thermal exchange conditions are also modified, depending on contact condition between the strand and the mould. After a two years work, the model is now in checking to predict behaviour of the strand in different cases (shape of the strand cross section, mould taper, etc.). [less ▲]

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See detailNumerical Modelling of the Forging Process of Rolls for Rolling Mills
Castagne, S.; Charles; Habraken, Anne ULg et al

in Proceedings of the 2nd International Conference on forging and related technology (2000, April)

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See detailA fully coupled elasto-plastic damage model applied to anisotropic materials
Wauters, M.; Habraken, Anne ULg; Duchene, Laurent ULg

in Tassoulas, J. L. (Ed.) Proceedings of the 14th Engineering Mechanics Conference (2000)

In this paper, an elastoplastic energy-based anisotropic damage model for ductile fracture is described. A calibration method is also presented. The potential applicability of this model is illustrated by ... [more ▼]

In this paper, an elastoplastic energy-based anisotropic damage model for ductile fracture is described. A calibration method is also presented. The potential applicability of this model is illustrated by numerical examples of tensile test and Forming Limit Diagram establishment on a steel. [less ▲]

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See detailAn Original integration scheme. Application to a simple shear test of anisotropic material
de Montleau, P.; Habraken, Anne ULg

in International Journal for Numerical Methods in Engineering (2000)

Finite element simulations involving large deformations and large displacements imply the setting up of a precise kinematic for the integration scheme. Moreover, anisotropic mechanical behaviors have to ... [more ▼]

Finite element simulations involving large deformations and large displacements imply the setting up of a precise kinematic for the integration scheme. Moreover, anisotropic mechanical behaviors have to be expressed in an appropriate local reference frame. In the present paper, a computational procedure is derived from a particular velocity gradient de¯nition. The implementation in the ¯nite element code Lagamine developed in the M&S department is described. An application to a simple shear test is proposed. A sinusoidal behavior of the shear component stress is emphasized. It is due to the anisotropic yield locus and appears in the case of a saturated isotropic hardening law. [less ▲]

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See detailValidation of a FEM model coupled with texture applied to deep drawing process
Duchene, Laurent ULg; Habraken, Anne ULg; Godinas, A.

in Proceedings of the 3rd ESAFORM Conference on Material Forming (2000)

This paper presents a constitutive law based on the Taylor model implemented in our non linear finite element code LAGAMINE. The yield locus is only locally described and the interpolation method is ... [more ▼]

This paper presents a constitutive law based on the Taylor model implemented in our non linear finite element code LAGAMINE. The yield locus is only locally described and the interpolation method is presented. This local yield locus model uses a discrete representation of the material's texture. The influence of this discrete representation and a deep-drawing simulation are presented. [less ▲]

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See detailA fully coupled elasto-plastic damage model applied to anisotropic materials
Wauters, M.; Habraken, Anne ULg; Duchene, Laurent ULg

(2000)

In this paper, an elastoplastic energy-based anisotropic damage model for ductile fracture is described. A calibration method is presented. The potential applicability of this model is illustrated by a ... [more ▼]

In this paper, an elastoplastic energy-based anisotropic damage model for ductile fracture is described. A calibration method is presented. The potential applicability of this model is illustrated by a numerical example of deep drawing process realised on two steels. [less ▲]

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See detailThermo-mechanical model of a strand in the mould of a continuous casting plant
Pascon, Frédéric ULg; Habraken, Anne ULg; Bourdouxhe, Michel et al

in Proceedings of the European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2000) (2000)

Surface and internal quality of continuous casts depends very much on the behaviour of the strand in the mould. Among the parameters likely to influence this behaviour, the mould taper takes a prominen ... [more ▼]

Surface and internal quality of continuous casts depends very much on the behaviour of the strand in the mould. Among the parameters likely to influence this behaviour, the mould taper takes a prominen tpart. In order to understand better the influence of this parameter, we build up a thermal-mechanical finite element model. A slice of the strand is modelled and its evolution is observed. The main results are temperature field and solidification evolution, stree, strain and strain rate fields and losses of contact and returns to contact analysis. The model includes an elastic-viscous-plastic law, to describe the behaviour of steel from liquid to solid state, a thermal-mechanical element that takes into account thermal expansion and mechanical behaviour of the strand, a unilateral contact element, z mobile rigid boundary element to model the mould and its taper and an adapted loading element to model the ferrostatic pressure according to the liquid or solid state. This paper presents the first results obtained with an relatively simple section ( a125 mm square billet). Now the model is used with more complex section (beam blanks) and its validation is going on. [less ▲]

Detailed reference viewed: 65 (9 ULg)