Blar i Vitenskapelige publikasjoner (TN-IMBM) på utgivelsesdato
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An accurate fatigue damage model for welded joints subjected to variable amplitude loading
(Journal article; Peer reviewed, 2017)Researchers in the past have proposed several fatigue damage models to overcome the shortcomings of the commonly used Miner's rule. However, requirements of material parameters or S-N curve modifications restricts their ... -
Vortex-induced vibration (VIV) effects of a drilling riser due to vessel motion
(Journal article; Peer reviewed, 2017)A marine riser undergoes oscillatory motion in water due to the vessel motions, known as global dynamic response. This to-and-fro motion of the riser will generate an equivalent flow that can cause Vortex-Induced Vibrations ... -
Uncertainties in current measurements in the northern North Sea
(Journal article; Peer reviewed, 2017)A met–ocean measurement program of waves and current profiles at five locations in the northern North Sea was performed over a period of approximately 5 years. Despite quality control, the measured current speed data ... -
Fatigue strength degradation of metals in corrosive environments
(Journal article; Peer reviewed, 2017)Structures exposed to aggressive environmental conditions are often subjected to time-dependent loss of coating and loss of material due to corrosion; this causes reduction in the cross-sectional properties of the members, ... -
Experimental and numerical study of Bondura® 6.6 PIN joints
(Journal article; Peer reviewed, 2017)Pin joints are widely used in heavy-duty machinery such as aircrafts, cranes and offshore drilling equipment to transfer multi-dimensional shear forces. Their strength and service life depend on the clamping force in the ... -
Limitations related to marine operations in the Barents Sea
(Journal article; Peer reviewed, 2017)Some marine activities in the Barents Sea are normally ongoing year-round; others are dependent on limited weather windows. The limitations for the marine operations are the special weather conditions characterized by ... -
Thermal performance of concrete with recycled aggregates from CDW plants
(Peer reviewed; Journal article, 2017)This investigation intends to analyse the thermal performance of concrete with recycled aggregates (RA) from construction and demolition waste (CDW) collected from several locations in Portugal. A total of 17 concrete mixes ... -
On Competition-driven Teaching of Multidisciplinary Engineering Education: Implementation cases at University of Stavanger
(Peer reviewed; Journal article, 2017)This article will reflect the experience gained on problem-based learning (PBL) projects implemented in the last six years at University of Stavanger (UiS). The PBL projects were implemented by establishing two ”student-driven” ... -
Testing the robustness of optimal access vessel fleet selection for operation and maintenance of offshore wind farms
(Peer reviewed; Journal article, 2017)Optimising the operation and maintenance (O&M) and logistics strategy of offshore wind farms implies the decision problem of selecting the vessel fleet for O&M. Different strategic decision support tools can be applied to ... -
Damping estimation of large wind-sensitive structures
(Peer reviewed; Journal article, 2017)The adequacy of two identification techniques to accurately estimate the modal damping ratios (MDRs) from ambient vibration records is assessed for long-span suspension bridges with eigen frequencies close to or below 0.1 ... -
Measurements of Surface-Layer Turbulence in a Wide Norwegian Fjord Using Synchronized Long-Range Doppler Wind Lidars
(Peer reviewed; Journal article, 2017)Three synchronized pulsed Doppler wind lidars were deployed from May 2016 to June 2016 on the shores of a wide Norwegian fjord called Bjørnafjord to study the wind characteristics at the proposed location of a planned ... -
Friction modeling of Al-Mg alloy sheets based on multiple regression analysis and neural networks
(Journal article; Peer reviewed, 2017-03)This article reports a proposed approach to a frictional resistance description in sheet metal forming processes that enables the determination of the friction coefficient value under a wide range of friction conditions, ... -
Design for manufacturing to design for Additive Manufacturing: Analysis of implications for design optimality and product sustainability
(Journal article; Peer reviewed, 2017-10)In response to the development of new materials, improved design methods, and increased societal demands to manufactured products, Design for Manufacturing (DfM) concept has paved the way to incorporate these demands into ... -
Offshore wind turbine wake characteristics using scanning doppler lidar
(Journal article; Peer reviewed, 2017-10)Within an offshore wind park, wind flow characteristics are quite complex and govern both the energy production and the structural wind turbine response. An experimental study focussed on assessing the spatial variability ... -
Spectral characteristics of surface-layer turbulence in the North Sea
(Journal article, 2017-10)According to IEC 61400-1 and IEC 61400-3 standards, the wind load on the rotor-nacelle assembly of offshore wind turbines should be estimated from the Kaimal or Mann spectral models, unless site-specific full-scale ... -
Estimation of slamming coefficients on local members of offshore wind turbine foundation (jacket type) under plunging breaker
(Journal article; Peer reviewed, 2017-11)In this paper, the slamming coefficients on local members of a jacket structure under plunging breaker are studied based on numerical simulations. A 3D numerical model is used to investigate breaking wave forces on the ... -
A Case Study on Topology Optimized Design for Additive Manufacturing
(Journal article; Peer reviewed, 2017-12)Topology optimization is an optimization method that employs mathematical tools to optimize material distribution in a part to be designed. Earlier developments of topology optimization considered conventional manufacturing ... -
Full-scale observation of the flow downstream of a suspension bridge deck
(Peer reviewed; Journal article, 2017-12)The paper presents a full-scale observation of the flow conditions downstream of a suspension bridge by a system of synchronized short-range dual-Doppler wind lidars. The lidar units were deployed directly on the bridge ... -
Corrosion propagation phase and bond strength degradation of reinforced concrete structures: state of the art
(Journal article; Peer reviewed, 2018)Corrosion causes damage to reinforcing steel in concrete structures and governs the service life of the structures. Currently, researchers are paying attention to modelling the behaviour of the bond between the concrete ... -
Spar-type vertical-axis wind turbines in moderate water depth: A feasibility study
(Peer reviewed; Journal article, 2018)The applications of floating vertical-axis wind turbines (VAWTs) in deep water have been proposed and studied by several researchers recently. However, the feasibility of deploying a floating VAWT at a moderate water depth ...