Search Results - "Skallerud, Bjørn H"

Experimental and numerical study of mooring chain residual stresses and implications for fatigue life by Zarandi, Ershad P., Skallerud, Bjørn H.

“…•Experimental and numerical study of offshore mooring chains residual stresses.•FE simulation of pitted chains to investigate residual stress…”
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Anisotropic finite strain viscoelasticity: Constitutive modeling and finite element implementation by Liu, Hongliang, Holzapfel, Gerhard A., Skallerud, Bjørn H., Prot, Victorien

“…A new anisotropic finite strain viscoelastic model is presented, which is based on the Holzapfel type anisotropic hyperelastic strain-energy function. The…”
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Cyclic behavior and strain energy-based fatigue damage analysis of mooring chains high strength steel by Zarandi, Ershad P., Skallerud, Bjørn H.

“…This study investigates the low-cycle fatigue behavior of mooring chains high-strength steel grade R4 under different strain amplitudes and strain ratios at…”
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Mechanical instability of monocrystalline and polycrystalline methane hydrates by Wu, Jianyang, Ning, Fulong, Trinh, Thuat T., Kjelstrup, Signe, Vlugt, Thijs J. H., He, Jianying, Skallerud, Bjørn H., Zhang, Zhiliang

“…Despite observations of massive methane release and geohazards associated with gas hydrate instability in nature, as well as ductile flow accompanying hydrate…”
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Digital image correlation for continuous mapping of fatigue crack initiation sites on corroded surface from offshore mooring chain by Qvale, Paul, Zarandi, Ershad P., Ås, Sigmund K., Skallerud, Bjørn H.

“…•Direct image correlation can detect fatigue crack initiation on corroded surfaces.•Multiple initiation sites can be detected on a single surface.•The fatigue…”
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Buckling initiation in layered hydrogels during transient swelling by Ilseng, Arne, Prot, Victorien, Skallerud, Bjørn H., Stokke, Bjørn T.

“…Subjected to compressive stresses, soft polymers with stiffness gradients can display various buckling patterns. These compressive stresses can have different…”
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Mode I stress intensity factors for semi-elliptical fatigue cracks in curved round bars by Aursand, Mads, Skallerud, Bjørn H.

“…•Calculation of mode I SIFs for semi-elliptical cracks in curved round bars.•Curved bar geometries useful for representing e.g. fatigue cracks in chain links…”
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MicroCT-based finite element models as a tool for virtual testing of cortical bone by Ramezanzadehkoldeh, Masoud, Skallerud, Bjørn H

“…Highlights • Validated specimen-specific cortical bone µFE models with non-uniform structure and material is scarce in the literature. • MicroCT based finite…”
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Effect of cyclic softening and mean stress relaxation on fatigue crack initiation in a hemispherical notch by Qvale, Paul, Zarandi, Ershad P., Arredondo, Alberto, Ås, Sigmund K., Skallerud, Bjørn H.

“…Corroded surfaces of offshore mooring chains typically show a very irregular shape with different pit geometries. Fatigue tests were performed in three‐point…”
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Volume growth during uniaxial tension of particle-filled elastomers at various temperatures – Experiments and modelling by Ilseng, Arne, H. Skallerud, Bjørn, H. Clausen, Arild

“…A common presumption for elastomeric material behaviour is incompressibility, however, the inclusion of filler particles might give rise to matrix-particle…”
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Donnan Contribution and Specific Ion Effects in Swelling of Cationic Hydrogels are Additive: Combined High-Resolution Experiments and Finite Element Modeling by Žuržul, Nataša, Ilseng, Arne, Prot, Victorien E, Sveinsson, Hrafn M, Skallerud, Bjørn H, Stokke, Bjørn T

“…Finite element modeling applied to analyze experimentally determined hydrogel swelling data provides quantitative description of the hydrogel in the aqueous…”
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Data on residual stresses of mooring chains measured by neutron diffraction and hole drilling techniques by Zarandi, Ershad P., Lee, Tung L., Skallerud, Bjørn H.

“…Residual stresses in large offshore mooring chains have been measured for the first time and presented in this article. Two chain links with the same size and…”
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Effects of the Histamine 1 Receptor Antagonist Cetirizine on the Osteoporotic Phenotype in H+/K+ATPase Beta Subunit KO Mice by Aasarød, Kristin M., Stunes, Astrid K., Mosti, Mats P., Ramezanzadehkoldeh, Masoud, Viggaklev, Bjørn I., Reseland, Janne E., Skallerud, Bjørn H., Fossmark, Reidar, Syversen, Unni

“…ABSTRACT Epidemiological studies suggest increased fracture risk in patients using proton pump inhibitors (PPIs). We have previously shown that the H+/K+ATPase…”
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Remaining fatigue life assessment of corroded mooring chains using crack growth modelling by Aursand, Mads, Haagensen, Per J., Skallerud, Bjørn H.

“…Failures caused by the combined actions of fatigue, corrosion and wear are important safety concerns for mooring chains used on floating structures in the oil…”
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Effect of long periods of corrosion on the fatigue lifetime of offshore mooring chain steel by Qvale, Paul, Nordhagen, Håkon O., Ås, Sigmund K., Skallerud, Bjørn H.

“…R4-grade mooring chain steel specimens were subjected to alternating phases of saltwater corrosion and air fatigue to replicate seasonal load variations on…”
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Crack growth in high strength mooring line steel under variable amplitude loading by Aursand, Mads, Frøseth, Gunnstein T., Haagensen, Per J., Skallerud, Bjørn H.

“…Mooring lines are of key importance for the safe and reliable operation of numerous floating offshore structures. Due to the constantly changing wind and wave…”
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An experimental and numerical study on the volume change of particle-filled elastomers in various loading modes by Ilseng, Arne, Skallerud, Bjørn H., Clausen, Arild H.

“…Laboratory tests show that there is a pronounced difference in the volumetric response between uniaxial tension and confined axial compression loading for…”
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Tension behaviour of HNBR and FKM elastomers for a wide range of temperatures by Ilseng, Arne, Skallerud, Bjørn H., Clausen, Arild H.

“…This article presents uniaxial tension tests of three different elastomer compounds commonly applied as seal materials in the oil and gas industry. The tests…”
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Skeletal effects of a gastrin receptor antagonist in H+/K+ATPase beta subunit KO mice by Aasarød, Kristin M, Ramezanzadehkoldeh, Masoud, Shabestari, Maziar, Mosti, Mats P, Stunes, Astrid K, Reseland, Janne E, Beisvag, Vidar, Eriksen, Erik Fink, Sandvik, Arne K, Erben, Reinhold G, Schüler, Christiane, Boyce, Malcolm, Skallerud, Bjørn H, Syversen, Unni, Fossmark, Reidar

“…Epidemiological studies suggest an increased fracture risk in patients taking proton pump inhibitors (PPIs) for long term. The underlying mechanism, however,…”
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Mo1878 The Osteoporotic Phenotype in H+/K+ATPase Beta Subunit KO-Mice Is Not Influenced by a Histamine 1 Receptor Antagonist by Aasarød, Kristin M, Ramezanzadehkoldeh, Masoud, Mosti, Mats P, Stunes, Astrid Kamilla, Reseland, Janne E, Skallerud, Bjorn H, Fossmark, Reidar, Syversen, Unni

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