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Stéphane Dumoulin

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Stéphane Dumoulin

Forsker

Stéphane Dumoulin
Telefon: 982 43 479
Mobil: 982 43 479
Avdeling: Materialer og nanoteknologi
Kontorsted: Trondheim

Publikasjoner og ansvarsområder

Publikasjoner

Publikasjon

Latent hardening and plastic anisotropy evolution in AA6060 aluminium alloy

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1296125

The crystal plasticity theory predicts that hardening on a particular slip system and its corresponding work-hardening rate will depend on the slip activity on both this slip system and all others. The exact form of this dependence is defined by the latent hardening description in form of the latent...

Forfattere Khadyko Mikhail Dumoulin Stéphane Cailletaud Georges Hopperstad Odd Sture
År 2016
Type Tidsskriftsartikkel
Publikasjon

A microstructure-based yield stress and work-hardening model for textured 6xxx aluminium alloys

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1357007

The plastic properties of an aluminium alloy are defined by its microstructure. The most important factors are the presence of alloying elements in the form of solid solution and precipitates of various sizes, and the crystallographic texture. A nanoscale model that predicts the work-hardening curve...

Forfattere Khadyko Mikhail Myhr Ole Runar Dumoulin Stéphane Hopperstad Odd Sture
År 2016
Type Tidsskriftsartikkel
Publikasjon

Deformation and strain localization in polycrystals with plastically heterogeneous grains

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1409649

A model of a polycrystalline material is studied, where each grain consists of several zones with different plastic properties. The size and configuration of the zones as well as their properties are mimicking the situation inside the crystals of artificially aged Al alloys with precipitate free zon...

Forfattere Khadyko Mikhail Marioara Calin Daniel Ringdalen Inga Gudem Dumoulin Stéphane Hopperstad Odd Sture
År 2016
Type Tidsskriftsartikkel
Publikasjon

Texture gradients and strain localisation in extruded aluminium profile

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1400473

Through-thickness crystallographic texture gradients may develop in extruded profiles and rolled sheets of aluminium alloys. These texture gradients are often modelled using the crystal plasticity theory in order to predict strain localisation more accurately. In this work, an experimental and numer...

Forfattere Khadyko Mikhail Dumoulin Stéphane Hopperstad Odd Sture
År 2016
Type Tidsskriftsartikkel
Publikasjon

Fracture propagation control in CO2 pipelines: Validation of a coupled fluid-structure model

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1356621

Existing engineering methods to ensure fracture propagation control in natural-gas transmission pipelines have been shown to be non-applicable when dense-phase CO2 is transported. To overcome this, a coupled fluid-structure interaction model has been developed. It consists of a homegeneous equlibriu...

Publikasjon

Crystal plasticity finite element simulations of pure bending of aluminium alloy AA7108

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1235924

The crystal plasticity finite element method (CP-FEM) is used to investigate the influence of microstructure on the bending behaviour of the heat treatable aluminium alloy AA7108. The study comprises two materials obtained from the AA7108 aluminium alloy by different thermo-mechanical treatments. Th...

Forfattere Saai Afaf Westermann Ida Dumoulin Stéphane Hopperstad Odd Sture
År 2015
Type Tidsskriftsartikkel
Publikasjon

Multi-level modelling of mechanical anisotropy of commercial pure aluminium plate: Crystal plasticity models, advanced yield functions and parameter identification

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1138151

The mechanical anisotropy of an AA1050 aluminium plate is studied by the use of five crystal plasticity models and two advanced yield functions. In-plane uniaxial tension properties of the plate were predicted by the full-constraint Taylor model, the advanced Lamel model (Van Houtte et al., 2005) an...

Forfattere Zhang Kai Holmedal Bjørn Hopperstad Odd Sture Dumoulin Stéphane Gawad Jerzy Van Bael Albert Van Houtte P
År 2015
Type Tidsskriftsartikkel
Publikasjon

Simulation of large-strain behaviour of aluminium alloy under tensile loading using anisotropic plasticity models

http://www.sintef.no/publikasjoner/publikasjon/?pubid=CRIStin+1254945

Cylindrical smooth and notched AA6060 samples were tested in tension. The material was either cast and homogenised or extruded with strong cube texture. The textured specimens demonstrated unusual shapes of the fracture surface that deviated from elliptical and were more rectangular in shape. A phen...

Forfattere Khadyko Mikhail Dumoulin Stéphane Børvik Tore Hopperstad Odd Sture
År 2015
Type Tidsskriftsartikkel
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