Blar i Fakultet for ingeniørvitenskap (IV) på tidsskrift "Engineering Failure Analysis"
Viser treff 1-15 av 15
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A prognostic method for fault detection in wind turbine drivetrains
(Journal article; Peer reviewed, 2014)In this paper, a prognostic method is presented for fault detection in gears and bearings in wind turbine drivetrains. This method is based on angular velocity measurements from the gearbox input shaft and the output to ... -
A review on fluid structure interaction in hydraulic turbines: A focus on hydrodynamic damping
(Journal article; Peer reviewed, 2017)Hydraulic turbines include stationary and rotating components. The interaction of the components, mainly between the runner blades and distributor vanes, is critical when the frequency of the rotor-stator interaction (RSI) ... -
Cohesive zone simulation of grain size and misorientation effects on hydrogen embrittlement in nickel
(Journal article; Peer reviewed, 2017)The size and misorientation effects on hydrogen embrittlement of a four grain nickel aggregate are studied with the help of hydrogen informed cohesive zone model. The grain misorientation angle is parameterized by fixing ... -
Creep and high temperature fatigue performance of as buildselective laser melted Ti-based 6Al-4V titanium alloy
(Peer reviewed; Journal article, 2020)The present work focuses on the room and high temperature low-cycle fatigue and creep testing of Ti-6Al-4V manufactured by selective laser melting (SLM) or laser-based powder bed fusion process (LBPF). The fatigue specimens ... -
Digital Twin Based Condition Monitoring of a Knuckle Boom Crane: an Experimental Study
(Peer reviewed; Journal article, 2020)This paper presents a novel approach for implementation of a digital twin for condition monitoring of a small-scale knuckle boom crane. The digital twin of the crane is simulated real-time in a nonlinear finite element ... -
Energy-based ductile failure predictions in cracked friction-stir welded joints
(Peer reviewed; Journal article, 2019)This research aims to study the fracture behaviour in dissimilar aluminum alloys adjoined by friction stir welding (FSW). In this way, experimental data dealing with this topic was taken from the recent literature. In those ... -
Experimental measurement of temperature-dependent equivalent stress-strain curves of a 420 MPa structural steel with axisymmetric notched tensile specimens
(Journal article; Peer reviewed, 2019)Recently, the authors in this paper proposed a correction function to determine material’s equivalent stress-strain curve with axisymmetric-notched tensile specimens. In this study, tensile tests were performed at room ... -
Hydrogen stress cracking and crack initiation in precipitation hardened Ni-alloys
(Journal article; Peer reviewed, 2018)The two different precipitation hardened nickel alloys, Alloy 718 and Alloy 725, were tested in its as received condition. Their susceptibility to hydrogen stress cracking was examined by the use of stepwise increasing ... -
Learning from failures in cruise ship industry: The blackout of Viking Sky in Hustadvika, Norway
(Peer reviewed; Journal article, 2021)This article brings to attention learning from the failure - blackout, loss of propulsion and near grounding - of Viking Sky cruise ship which occurred in Hustadvika, Norway, in March 2019. Failures and accidents in the ... -
Learning from failures: Accidents of marine structures on Norwegian continental shelf over 40 years time period
(Peer reviewed; Journal article, 2020)This paper investigates accidents, major accidents and disasters which occurred on the Norwegian Continental Shelf (NCS) over a period of more than 40 years time (1972-2013). An accident investigation based on the system ... -
On the internal blast loading of submerged floating tunnels in concrete with circular and rectangular cross-sections
(Journal article; Peer reviewed, 2019)The Norwegian Public Roads Administration has initiated a large research project on a potential ferry-free coastal highway route E39 on the west coast of Norway. For the wide and deep fjords, a submerged floating tunnel ... -
Rapid Strain Energy Density evaluation for V-notches under mode I loading conditions
(Peer reviewed; Journal article, 2020)This work investigates the possibility to evaluate the Strain Energy Density value with a free mesh model suggesting the use of a correcting formula a posteriori. Several numerical analyses were carried out to prove the ... -
Strain controlled medium cycle fatigue of a notched Pb-Sn-Cd lead alloy
(Journal article; Peer reviewed, 2019)During the extrusion process of subsea power cable sheathing layer it is possible that metallic and/or non-metallic debris present in the processing environment enter the metal lattice originating discontinuities that might ... -
Thin steel plates exposed to combined ballistic impact and partially confined airblast loading
(Peer reviewed; Journal article, 2023)Pre-formed defects created by high-velocity impact have the potential to reduce the structural integrity of lightweight, flexible structures. This study evaluates the effect of complex, partially confined detonations on ... -
Tooth flank fracture – An applied fatigue study of case hardened bevel gears
(Peer reviewed; Journal article, 2022)A material model for carburized CrNiMo steel and an advanced shear stress intensity, multiaxial fatigue criterion against surface and subsurface fatigue in bevel gears have been developed and presented in earlier publications. ...