Bjørn Holmedal
Background and activities
Bjørn Holmedal is a professor in physical metallurgy at the Department of Materials Science and Engineering, since 2009.
Background
Bjørn Holmedal (born 1968) has an MSc in Mechanical Engineering from NTH (1992) and a PhD in Mathematics from the University of Oslo (1998). He has industrial experience as a researcher in Raufoss Technology (1997-2000), starting as a postdoc at NTNU in 2000.
Publication statistics at Google schoolar page
Research areas
- Metal continuum plasticity theory and modelling
- Metal crystal plasticity theory and modelling (including texture)
- Thermomechanical processing of alloys
- Strengthening and work hardening mechanisms in alloys
- dislocation theory and modelling
Teaching
Spring :
* TMT4266 Metal forming- microstructure and crystal plasticity
Autumn:
* 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
- Main supervisor for PhD candidate with NTNU grant: Sohail Shah Atom Probe Tomography. clustering and nucleii in age hardened aluminium alloys
Roles:
- Member of "undervisningsutvalg" DMSE
- Member of "studieprogramsråd", material technology studies
- Member of "ansettelsesråd" NV-faculty
Scientific, academic and artistic work
A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database
2019
- (2019) Relationship between Al-Ni intermetallic Phases and Bond Strength in Roll Bonded Steel-Aluminum Composites with Nickel Interlayers. Metals. vol. 9 (8).
- (2019) Nano-scale characterisation of sheared β” precipitates in a deformed Al-Mg-Si alloy. Scientific Reports. vol. 9.
- (2019) Experimental characterization and modeling of aluminum alloy AA3103 for complex single and double strain-path changes. International journal of plasticity. vol. 112.
- (2019) Assessment of advanced Taylor models, the Taylor factor and yield-surface exponent for FCC metals. International journal of plasticity. vol. 114.
2018
- (2018) Influence of thermomechanical processing sequence on properties of AA6082-IF steel cold roll bonded composite sheet. Procedia Manufacturing. vol. 15.
- (2018) Influence of Stacking Sequence and Intermediate Layer Thickness in AA6082-IF Steel Tri-Layered Cold Roll Bonded Composite Sheets. Key Engineering Materials. vol. 767 KEM.
- (2018) Modelling and experimental validation of microstructure evolution during the cooling stage of homogenization heat treatment of Al-Mg-Si alloys. Materialia. vol. 4.
- (2018) Precipitation and strengthening modeling for disk-shaped particles in aluminum alloys: Size distribution considered. Materialia. vol. 4.
- (2018) A combined isotropic, kinematic and distortional hardening model for aluminum and steels under complex strain-path changes. International journal of plasticity. vol. 101.
- (2018) Through thickness variations of deformation texture in round profile extrusions of 6063-type aluminium alloy: Experiments, FEM and crystal plasticity modelling. Materials Science & Engineering: A. vol. 722.
2017
- (2017) Modeling over-ageing in Al-Mg-Si alloys by a multi-phase CALPHAD-coupled Kampmann-Wagner Numerical model. Acta Materialia. vol. 122.
- (2017) Modelling of strain-path transients in commercially pure aluminium. Materials Science Forum. vol. 877.
- (2017) Modeling strain-path changes in aluminum and steel. International Journal of Solids and Structures. vol. 117.
- (2017) A new tribological system test for integrated hot forming and die quenching of aluminium alloy sheets. AIP Conference Proceedings. vol. 1896 (1).
- (2017) Characterization and Modelling of the Microstructure and Texture Evolution In AlMgSi-Extrusions. Materials Science Forum. vol. 879.
2016
- (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
- (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.