Background and activities
Spring course:
* TMT4266 Metal forming- microstructure and crystal plasticity
Autumn Courses:
* TMT4222 Mechanical Properties of Metals
Projects:
CRI-Manufacturing: Co supervisor for PhD candidate Siri Marthe Aarbo, cold metal welding of dissimilar metals
CRI-CASA: Co-supervisor for PhD candidate Jianbin Xu, Modeling Dynamic Strain Aging.
KPN-AMPERE: (heat stability and conductivity of 6xxx alloys) WP leader: Mechanical Properties. Main supervisor for PhD candidate Feng Lu
IPN-Cosmetex: Surface properties from extrusion
Main supervisor for two PhD candidates with NTNU grants:
Jisheng Qin: Advanced continuum plasticity models for strain-path changes
Knut Erik Snilsberg: Integrated Hot Forming and Die Quenching of Aluminium Wrought Alloys
Roles:
Group leader for the physical metallurgy group at DMSE and member of the extended leader group of DMSE
Member of "undervisningsutvalg" DMSE
Member of "studieprogramsråd", material technology studies
Professional interests:
Hardening mechanisms in metals, primarily Aluminium alloys. Dislocations, microstructure evolution, influence of solute, particles & precipitates.
Crystal plasticilty (CPFEM, Taylor type models), continuum mehanics.
Transients related to strain-path changes.
Accumulated roll bonding. Enhanced strength. Metal composites.
Mathematical modelling
Scientific, academic and artistic work
Displaying a selection of activities. See all publications in the database
Journal publications
- (2017) Modeling over-ageing in Al-Mg-Si alloys by a multi-phase CALPHAD-coupled Kampmann-Wagner Numerical model. Acta Materialia. vol. 122.
- (2016) A physically-based constitutive model applied to AA6082 aluminium alloy at large strains, high strain rates and elevated temperatures. Materials & design. vol. 103.
- (2015) Precipitation of Non-spherical Particles in Aluminum Alloys Part II: Numerical Simulation and Experimental Characterization During Aging Treatment of an Al-Mg-Si Alloy. Metallurgical and Materials Transactions. A.
- (2015) On the basic relation between mean free slip length and work hardening of metals. Philosophical Magazine. vol. 95 (25).
- (2015) Strength contributions from precipitates. Philosophical Magazine Letters. vol. 95 (12).
- (2015) Precipitation of Non-Spherical Particles in Aluminum Alloys Part I: Generalization of the Kampmann–Wagner Numerical Model. Metallurgical and Materials Transactions. A.
- (2015) Strain-path change induced transients in flow stress, work hardening and r-values in aluminum. International journal of plasticity. vol. 69.
- (2015) Multi-level modelling of mechanical anisotropy of commercial pure aluminium plate: Crystal plasticity models, advanced yield functions and parameter identification. International journal of plasticity. vol. 66.
- (2015) Multi-component solid solution and cluster hardening of Al-Mn-Si alloys. Materials Science & Engineering: A. vol. 625 (Febr).
- (2014) Characterizing hardening on annealing of cold-rolled aluminum AA3103 strips. Metallurgical and Materials Transactions. A. vol. 45 (3).
- (2014) Review of the Taylor ambiguity and the relationship between rate-independent and rate-dependent full-constraints Taylor models. International journal of plasticity. vol. 55.
- (2014) Modelling the plastic anisotropy of aluminium alloy 3103 sheets by polycrystal plasticity models. Modelling and Simulation in Materials Science and Engineering. vol. 22 (7).
- (2014) A robust and efficient substepping scheme for the explicit numerical integration of a rate-dependent crystal plasticity model. International Journal for Numerical Methods in Engineering. vol. 99 (4).
- (2013) Layer continuity in accumulative roll bonding of dissimilar material combinations. Materials & design. vol. 52.
- (2013) Tensile bond strength of cold roll bonded aluminium sheets. Journal of Materials Processing Technology. vol. 213 (6).
- (2013) Additional relaxations in the Alamel texture model. Materials Science & Engineering: A. vol. 580.
- (2013) On the criterion for compensation to avoid elastic-plastic transients during strain rate change tests. Acta Materialia. vol. 61 (2).
- (2013) Modelling work hardening of aluminium alloys containing dispersoids. Philosophical Magazine. vol. 93 (23).
- (2013) The effect of silicon on the strengthening and work hardening of aluminum at room temperature. Materials Science & Engineering: A. vol. 563.
- (2013) Influence of dispersoids on microstructure evolution and work hardening of aluminium alloys during tension and cold rolling. Philosophical Magazine. vol. 93 (22).
- (2012) Stability of rolls in finite-amplitude Rayleigh-Benard convection in a high-Prandtl-number fluid between a perfectly conducting boundary and a slab of finite thickness and finite conductivity. European journal of mechanics. B, Fluids. vol. 34.
- (2012) Effect of alloying elements on stage-III work-hardening behaviour of Al-Zn-Mg(-Cu) alloys. International Journal of Materials Research - Zeitschrift für Metallkunde. vol. 103 (5).
- (2012) Comparison of the influence of Si and Fe in 99.999% purity aluminum and in commercial-purity aluminum. Scripta Materialia. vol. 67 (2).
- (2011) Three-Point Bending of Heat-Treatable Aluminum Alloys: Influence of Microstructure and Texture on Bendability and Fracture Behavior. Metallurgical and Materials Transactions. A. vol. 42A (11).
- (2010) Work-hardening behaviour of a heat-treatable AA7108 aluminium alloy deformed to intermediate strains by compression. Journal of Materials Science. vol. 45 (19).
- (2009) Warm forming simulation of Al-Mg sheet. Journal of Materials Processing Technology. vol. 209 (15-16).
- (2009) Ageing and work-hardening behaviour of a commercial AA7108 aluminium alloy. Materials Science & Engineering: A. vol. 524 (1-2).
- (2008) Evaluation of identification methods for YLD2004-18p. International journal of plasticity. vol. 24 (12).
- (2008) A crystal plasticity model for strain-path changes in metals. International journal of plasticity. vol. 24.
- (2008) Sub-structure strengthening and work hardening of an ultra-fine grained aluminium-magnesium alloy. Materials Science & Engineering: A. vol. 483-484.
- (2007) On the formulation of the mechanical threshold stress model. Acta Materialia. vol. 55 (8).
- (2006) Large strain work hardening of aluminum alloys and the effect of Mg in solid solution. Metallurgical and Materials Transactions. A. vol. 37A.
- (2006) Strengthening mechanisms in solid solution aluminum alloys. Metallurgical and Materials Transactions. A. vol. 37A.
- (2005) "FEM and a microstructure based work hardening model used to calculate forming limit curves". International Journal of Forming Processes. vol. 8/SI.
- (2005) Stability of squares and rolls in Rayleigh-Benard convection in an infinite-Prandtl-number fluid between slabs. Journal of Fluid Mechanics. vol. 537.
- (2005) A unified microstructural metal plasticity model applied for testing, processing and forming of aluminium alloys. Zeitschrift für Metallkunde. vol. 96 (6).
- (2005) Planform selection in Rayleigh-Benard convection between finite slabs. Journal of Fluid Mechanics. vol. 537 (537).
- (2005) Planform selection in Rayleigh-Bénard convection between finite slabs. Journal of Fluid Mechanics. vol. 537.
- (2005) Modelling grain boundary strengthening in ultra-fine grained aluminum alloys. Materials Science & Engineering: A. vol. 410.
- (2004) The effect of boundary spacing on substructure strengthening. Materials Science and Technology. vol. 20.
- (2004) Microstructure development during hot deformation of aluminum to large strains. Metallurgical and Materials Transactions. A. vol. 34A.
- (1993) Computation of the inlet wall jet in a rectangular enclosure. Theoretical and Computational Fluid Dynamics. vol. 1.
- (1993) Magnetohydrodynamic melting flow from a horizontal rotating disk. Mathematical Models and Methods in Applied Sciences. vol. 3 (3).
Part of book/report
- (2006) Through Process Modeling of Extrusion: Evolution in Microstructure and Mechanical Properties through the whole Process Chain from As Cast and Homogenized Condition to Forming of Profiles. Virtual Fabrication of Aluminium Products.
- (2006) Work Hardening of Aluminium Alloys - A Review of Selected Work Hardening Models. Virtual Fabrication of Aluminium Products.
- (2006) Through Process Simulation of EN AW-3103 Sheet Production Modelling the Evolution of Microstructure, Texture, Microchemistry and Mechanical Properties. Virtual Fabrication of Aluminium Products.