Browsing NTNU Open by Author "Thomesen, Susanne"
Now showing items 1-10 of 10
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Anisotropic Plasticity and Fracture of Three 6000-Series Aluminum Alloys
Thomesen, Susanne; Hopperstad, Odd Sture; Børvik, Tore (Peer reviewed; Journal article, 2021)The influence of microstructure on plasticity and fracture of three 6000-series aluminum alloys is studied with emphasis on the anisotropy caused by the extrusion process. Tension tests on smooth and notched specimens are ... -
Ballistic impact of structural steels at low temperatures
Holmen, Jens Kristian; Thomesen, Susanne; Perez-Martin, Maria Jesus; Hopperstad, Odd Sture; Børvik, Tore (Peer reviewed; Journal article, 2022)Steels are usually stronger at low temperatures than at high temperatures. But low temperatures are, particularly in combination with high strain rates and high stress triaxiality ratios, known to cause embrittlement. The ... -
Dynamic Behaviour of a High-Strength Structural Steel at Low Temperatures
Perez-Martin, Maria Jesus; Holmen, Jens Kristian; Thomesen, Susanne; Hopperstad, Odd Sture; Børvik, Tore (Journal article; Peer reviewed, 2019)The main objective of this experimental study is to determine the effect of low temperatures on the mechanical behaviour of Strenx 960 Plus high-strength structural steel at different strain rates and stress triaxialities. ... -
Effects of constituent particle content on ductile fracture in isotropic and anisotropic 6000-series aluminium alloys
Tomstad, Asle Joachim; Thomesen, Susanne; Børvik, Tore; Hopperstad, Odd Sture (Peer reviewed; Journal article, 2021)Tension tests on smooth and notched specimens were conducted for four 6000-series aluminium alloys to assess the effects of constituent particles on ductile fracture at different stress states. Two of the alloys are ... -
Identification of Material Properties of an Aluminium Alloy
Nordhaug, Marie (Master thesis, 2017)Uniaxial tension tests of small versus large round specimens and small versus large flat specimens from a 3XXX series aluminium alloy were carried out to identify the mechanical properties of the material. Different ... -
Impact Behaviour of Steel at Low Temperatures
Thomesen, Susanne (Master thesis, 2016)The main objective of this thesis was to determine the impact behaviour of the high strength steel Strenx-960-Plus at room and low temperatures, and to investigate if the deformation and failure mode changed from ductile ... -
Influence of stress state on plastic flow and ductile fracture of three 6000-series aluminium alloys
Thomesen, Susanne; Hopperstad, Odd Sture; Myhr, Ole Runar; Børvik, Tore (Journal article; Peer reviewed, 2020)In this study, the plastic flow and ductile fracture of three 6000-series aluminium alloys commonly used for crash components in the automotive industry are characterised experimentally and the observations are related to ... -
On the coupling of damage and single crystal plasticity for ductile polycrystalline materials
Frodal, Bjørn Håkon; Thomesen, Susanne; Børvik, Tore; Hopperstad, Odd Sture (Peer reviewed; Journal article, 2021)A crystal plasticity model accounting for damage evolution and ductile failure in a single crystal due to the presence of voids or micro-cracks is presented. An accurate, robust and computationally efficient single crystal ... -
On the Material Characterization of an Aluminium Alloy Using Different Specimens and Identification Methods
Thomesen, Susanne; Hopperstad, Odd Sture; Børvik, Tore (Journal article; Peer reviewed, 2018)The validity of material properties obtained from uniaxial tension tests using different specimen types and measurement techniques is investigated in this paper. Four different specimen geometries were tested, including ... -
Plastic flow and fracture of isotropic and anisotropic 6000-series aluminium alloys: Experiments and numerical simulations
Thomesen, Susanne (Doctoral theses at NTNU;2019:312, Doctoral thesis, 2019)