References of "Habraken, Anne"
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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 ▲]

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See detailA new elastic-visco-plastic damage model for annealed aluminium: theory, calibration and validation
Habraken, Anne ULg; Zhang, Lihong ULg; Wang, X. C. et al

in Benallal, A. (Ed.) Proceedings of the Continuous Damage and Fracture Symposium (2000)

This article describes an energy based, two variables, isotropic damage model merged with Bodner's elasto-visco-plastic model and implemented in a non-linear finite element code. The procedure to identify ... [more ▼]

This article describes an energy based, two variables, isotropic damage model merged with Bodner's elasto-visco-plastic model and implemented in a non-linear finite element code. The procedure to identify the parameters of the model and its experimental validation are presented and applied to an annealed aluminium. [less ▲]

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

in Iványi, M.; Muzeau, J.-P.; Topping, B. H. V. (Eds.) Computational Steel Structures Technology (2000)

Swaged bolts are an alternative to high strength (HS) bolts for connections in steel structures. To clarify the different steps involved during their specific installation process, a numerical modelling ... [more ▼]

Swaged bolts are an alternative to high strength (HS) bolts for connections in steel structures. To clarify the different steps involved during their specific installation process, a numerical modelling has been carried out. It allows the relevant phenomena to be described and to be evaluated. This numerical calculation accounts for mechanical plasticity and friction contact between the components of swaged bolts. The finite element code "Lagamine" designed for the forming analysis that requires the modelling of the friction between plastically deformable solids has been used with an original and quite efficient way to take into account the contact. The drawing of the stress distributions during and after the swaging process is the main result of this research. [less ▲]

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See detailNumerical modelling of the forging process of rolls for rolling mills
Charles, J.-F.; Castagne, Sylvie; Zhang, Lihong ULg et al

in Pietrzyk, M.; Kusiak, J.; Majta, J. (Eds.) et al Proceedings of the 8th International Conference on Metal Forming (2000)

This article presents comparisons of forging processes between two flat tools, between two round tools, and at different forging temperatures. Simulation results help to recover and better understa,d long ... [more ▼]

This article presents comparisons of forging processes between two flat tools, between two round tools, and at different forging temperatures. Simulation results help to recover and better understa,d long practice in the forging industry. [less ▲]

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See detailThermomechanical model of the behaviour of a strand in continuous steel casting using finite element method
Pascon, Frédéric ULg; Habraken, Anne ULg; Bourdouxhe, Michel et al

in Proceedings of the 5ème Congrès national belge, Mécanique théorique et appliquée (2000)

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See detailDevelopment of a microscopic damage model for steel at high temperature
Castagne, S.; Habraken, Anne ULg

in Proceedings of the 5ème congrès national belge, Mécanique théorique et appliquée (2000)

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See detailNumerical modelling of the forging process of rolls for rolling mills
Charles, J. F.; Castagne, S.; Zhang, Lihong ULg et al

in Proceedings of the 5ème Congrès national belge, Mecanique théorique et appliquée (2000)

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See detailNumerical simulation of compacting process of a multi-stepped part – Comparison with experiments
Mosbah, P.; Shima, S.; Habraken, Anne ULg et al

in Journal of the Japan Society of Powder and Powder Metallurgy (1999), 46

Detailed reference viewed: 20 (3 ULg)
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See detailElastoplastic anisotropic model based on texture analysis to simulate steel sheet behavior
Duchene, Laurent ULg; Habraken, Anne ULg; Cescotto, Serge ULg

in 7th International Symposium on Plasticity (1999)

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See detailModélisation de la mise en oeuvre des boulons sertis précontraints
Drean, M.; Habraken, Anne ULg; Bouchair, A. et al

in Construction Métallique (1999), 4

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See detailMetal plastic behaviour linked to texture analysis and FEM method
Duchene, Laurent ULg; Godinas, André; Habraken, Anne ULg

in 4th International Conference NUMISHEET 1999 (1999)

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See detailTexture effects on steel sheet behaviour under large strain simulations
Duchene, Laurent ULg; Godinas, André; Habraken, Anne ULg

in 12th International Conference on Texture of Materials (ICOTOM12) (1999)

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See detailIntegration of recrystallisation model coupled with an elasto-visco-plastic law - Experimental tests and calibration of this model
Charles, J. F.; Habraken, Anne ULg; Lecomte-Beckers, Jacqueline ULg

in Proceedings of the 2nd ESAFORM Conference on Material Forming (1999)

The recrystallisation model is based on the model developed by Kopp [1,2]. This model is implemented in our finite element code "lagamine" and is coupled with a thermomechanical elasto-visco-plastic law ... [more ▼]

The recrystallisation model is based on the model developed by Kopp [1,2]. This model is implemented in our finite element code "lagamine" and is coupled with a thermomechanical elasto-visco-plastic law. It assumes that each integration point in the mesh is represented by a number of sub-structures with a different volumic recrystallised fraction. In order to be able to calibrate such a model, we need to perform a lot of experimentals tests. Hot compression tests on small cylinder at different temperatures and strain rates are made till strain level from 0.1 up to 0.7. The compressed cylinders are quenched after the tests. A metallographic study of the quenched cylinders gives the recrystallised fraction function of the strain, the strain rate and temperature. So experimental, numerical and metallographic studies of hot compression tests aim the definition of an accurate predictive thermo-mechanic metallurgical model able to stimulate forging processes. [less ▲]

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See detailComparisons of anisotropic elastoplastic laws applied to steel sheet
Habraken, Anne ULg; Radu, Jean-Pol ULg; Duchene, Laurent ULg et al

in International Conference NUMIFORM 1998 (1998, June)

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See detailDynamic Recrystallization during Zinc Rolling
Habraken, Anne ULg; Charles, J.-F.; Wegria, J. et al

in International Journal of Forming Processes (1998), 1

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See detailContact between deformable solids, the fully coupled approach
Habraken, Anne ULg; Cescotto, Serge ULg

in Mathematical & Computer Modelling (1998), 28(4-8), 153-169

Detailed reference viewed: 33 (7 ULg)