Browsing NTNU Open by Author "Skallerud, Bjørn Helge"
Now showing items 1-20 of 26
-
3D patient-specific numerical modeling of the soft palate considering adhesion from the tongue
Liu, Hongliang; Prot, Victorien Emile; Skallerud, Bjørn Helge (Journal article; Peer reviewed, 2018)Collapse of the soft palate in the upper airway contributes to obstructive sleeping apnea (OSA). In this study, we investigate the influence of the adhesion from the tongue on the soft palate global response. This is ... -
A gradient-based multiaxial criterion for fatigue crack initiation prediction in components with surface roughness
Skallerud, Bjørn Helge; Ås, Sigmund Kyrre; Ottosen, Niels S. (Journal article, 2018)The current study presents methods to predict the governing crack initiation site and fatigue crack initiation life of components with surface roughness. The surface topography is measured with white light interferometry ... -
Abaqus explicit procedure to describe OPB behaviour in Mooring lines
Utklev, Jens Christian (Master thesis, 2015)The procedure use data from model tests as input and calculate the local OPB stress field. -
Adiponectin reduces bone stiffness; verified in a 3D artificial human bone model in vitro
Haugen, Sigrid; He, Jianying; Sundaresan, Alamelu; Stunes, Astrid Kamilla; Aasarød, Kristin Matre; Tiainen, Hanna; Syversen, Unni; Skallerud, Bjørn Helge; Reseland, Janne Elin (Journal article; Peer reviewed, 2018)Primary human osteoblasts and osteoclasts incubated in a rotating coculture system without any scaffolding material, form bone-like tissue that may be used to evaluate effects of various compounds on mechanical strength. ... -
An experimental and numerical study on the volume change of particle-filled elastomers in various loading modes
Ilseng, Arne; Skallerud, Bjørn Helge; Clausen, Arild Holm (Journal article; Peer reviewed, 2017)Laboratory tests show that there is a pronounced difference in the volumetric response between uniaxial tension and confined axial compression loading for commercial particle-filled hydrogenated nitrile butadiene rubber ... -
Buckling initiation in layered hydrogels during transient swelling
Ilseng, Arne; Prot, Victorien Emile; Skallerud, Bjørn Helge; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2019)Subjected to compressive stresses, soft polymers with stiffness gradients can display various buckling patterns. These compressive stresses can have different origins, like mechanical forces, temperature changes, or, for ... -
Crystal plasticity modeling of microstructure influence on fatigue crack initiation in extruded Al6082-T6 with surface irregularities
Hallberg, Håkan; Ås, Sigmund Kyrre; Skallerud, Bjørn Helge (Journal article, 2018)The influence of surface roughness and microstructure heterogeneities in the vicinity of macroscopic stress concentrations are investigated by crystal plasticity simulations. It is shown that in the extruded Al6082-T6 alloy ... -
Eksperimentelle og mekaniske undersøkelser av stivhet og styrke i lårben fra mus
Hessevik, Magnus (Master thesis, 2013)Denne oppgaven er en del av et prosjekt som bruker lårben fra mus til å undersøke hvordan benkvaliteten påvirkes med forskjellige genegiske modifiseringer og medisineringer. Forberedelser, behandling av benprøver og oppsett ... -
Enabling Sequential Rupture for Lowering Atomistic Ice Adhesion
Xiao, Senbo; Skallerud, Bjørn Helge; Wang, Feng; Zhang, Zhiliang; He, Jianying (Journal article; Peer reviewed, 2019)State-of-the-art passive icephobicity relies mainly on static parameters such as surface energy, coating elastic modulus, crack sizes and so on. Low ice adhesion resulting from dynamic de-icing process, for instance ice ... -
Finite Element Approach to Estimating Shell Properties of Nanoparticle-stabilized Microbubbles
Morton, Daniel Thor (Master thesis, 2016)The application of nanoparticle-stabilized microbubbles (NP-MBs) for localized drug delivery is a new and promising method for enhancing the effectiveness of administered drugs. The NP-MBs move through the vascular system ... -
Fluid structure interaction aspects in obstructive sleep apnea patients
Hole, Øyvind (Master thesis, 2017)In this master thesis, a comparative study of the feasibility of fluid-structure interaction (FSI) tools has been done in light of simulating the problem of obstructive-sleep apnea (OSA). Part of the study has been done ... -
Grain-size Induced Strengthening and Weakening of Dislocation-free Polycrystalline Gas Hydrates
Wu, Jianyang; Skallerud, Bjørn Helge; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2017)Sediment-hosted gas hydrates have profound impacts on global energy sources and climate change. Their mechanical properties play a crucial role in gas recovery and understanding their evolution in nature, however, the ... -
Mechanical behaviour of particlefilled elastomers at various temperatures: An experimental and numerical study
Ilseng, Arne (Doctoral theses at NTNU;2016:295, Doctoral thesis, 2016)Numerical tools that facilitate predictions of the mechanical behaviour of elastomeric products exposed to various temperatures have great cost saving potentials in multiple industries. To unleash these potentials, precise ... -
Mechanical instability of monocrystalline and polycrystalline methane hydrates
Wu, Jianyang; Ning, Fulong; Trinh, Thuat; Kjelstrup, Signe; Vlugt, Thijs J.H.; He, Jianying; Skallerud, Bjørn Helge; Zhang, Zhiliang (Journal article; Peer reviewed, 2015)Despite observations of massive methane release and geohazards associated with gas hydrate instability in nature, as well as ductile flow accompanying hydrate dissociation in artificial polycrystalline methane hydrates ... -
MekIT’17 - Ninth national conference on Computational Mechanics
Skallerud, Bjørn Helge; Andersson, Helge Ingolf (Book, 2017) -
Modeling and simulation of the soft palate for improved understanding of the obstructive sleep apnea syndrome
Liu, Hongliang (Doctoral theses at NTNU;2018:101, Doctoral thesis, 2018)Obstructive sleep apnea (OSA) influences a large part of the population and is increasingly recognized as a major global health problem. For OSA patients, the collapse of the soft palate has been clarified to be a common ... -
Nano-Indentation of Anisotropic Material: Numerical Approaches to Extract Elasticities from Nano-Indentation
Sveaass, Tore (Master thesis, 2013)Division of Biomechanics participates in a project together with Department of Cancer Research and Molecular Medicine, NTNU, on effects of proton pump inhibitor medication on bone quality. This common anti-stomach acid ... -
Numerical Analysis of Primary Stability on Cementless Hip Prostheses
Olufsen, Sindre Nordmark (Master thesis, 2012)Since the first Total Hip Arthroplasty (THA) performed in the 60's, it has been regarded among the most successful surgical procedures. When an un-cemented hip prosthesis is employed, the prosthesis is impacted into a ... -
Numerical Modelling and Analysis of the Left Ventricle
Slinde, Gaute Aasen (Master thesis, 2015)The development of a well functioning finite element model of the left ventricle is an important step to better understand the pumping function of the human heart. This may be of interest when developing effective treatments ... -
Palatal implant surgery effectiveness in treatment of obstructive sleep apnea: a numerical method with 3D patient-specific geometries
Liu, Hongliang; Moxness, Mads Henrik Strand; Prot, Victorien Emile; Skallerud, Bjørn Helge (Journal article; Peer reviewed, 2018)Obstructive sleep apnea (OSA) affects a large percentage of the population and is increasingly recognized as a major global health problem. One surgical procedure for OSA is to implant polyethylene (PET) material into the ...