Blar i Publikasjoner fra CRIStin - NTNU på tittel
Viser treff 13293-13312 av 37384
-
Fatigue performance of shelled additively manufactured parts subjected to hot isostatic pressing
(Journal article; Peer reviewed, 2022)Additive manufacturing (AM) of metal components is increasingly used in high performance applications, especially in the aerospace industry. Laser powder bed fusion (L-PBF) of metals is the most widely used and mature ... -
Fatigue properties of AA6060-T6 butt welds made by hybrid metal extrusion & bonding
(Peer reviewed; Journal article, 2020)The present investigation is concerned with high‐cycle axial fatigue testing of a 2‐mm AA6060‐T6 hybrid metal extrusion & bonding (HYB) butt weld produced in the solid state using AA6082 filler metal addition. The results ... -
Fatigue reassessment for lifetime extension of offshore wind monopile substructures
(Journal article; Peer reviewed, 2016)Fatigue reassessment is required to decide about lifetime extension of aging offshore wind farms. This paper presents a methodology to identify important parameters to monitor during the operational phase of offshore wind ... -
Fatigue reliability assessment of offshore wind turbines with stochastic availability
(Journal article; Peer reviewed, 2019)In this paper, the impact on lifetime estimation of an offshore wind turbine by introducing a stochastic model for the availability is investigated. Offshore bottom-fixed wind turbines typically have an average downtime ... -
Fatigue reliability of mooring chains, including mean load and corrosion effects
(Peer reviewed; Journal article, 2022)A reliability formulation for mooring chain fatigue is developed, including the effects of mean load and degradation due to corrosion. They are included by starting from a S-N model with parameterized dependence to the ... -
Fatigue Reliability-Based Inspection and Maintenance Planning of Gearbox Components in Wind Turbine Drivetrains
(Journal article; Peer reviewed, 2014)This paper introduces a reliability-based maintenance plan for wind turbine gearbox components. The gears and bearings are graded based on their fatigue damage and a maintenance map is developed to focus on those components ... -
Fatigue Resistance of Double Sealant Composed of Polyisobutylene Sealant Adjacent to Silicone Sealant
(Journal article; Peer reviewed, 2014)With the aid of current sealant technologies, a double sealant comprising adjacent silicone and polyisobutylene sealants may be used to enhance the durability of buildings. The inner silicone sealant is quite durable owing ... -
Fatigue sensitivity to foundation modelling in different operational states for the DTU 10MW monopile-based offshore wind turbine
(Journal article; Peer reviewed, 2019)The importance of foundation modelling for the support-structure fatigue damage estimation of a 10 MW monopile based offshore wind turbine is investigated in different operational states and wind-wave misalignment conditions. ... -
Fatigue sensitivity to foundation modelling in different operational states for the DTU 10MW monopile-based offshore wind turbine
(Journal article; Peer reviewed, 2019)The importance of foundation modelling for the support-structure fatigue damage estimation of a 10 MW monopile based offshore wind turbine is investigated in different operational states and wind-wave misalignment conditions. ... -
Fatigue strength assessment of riveted railway bridge details based on regression analyses combined with probabilistic models
(Peer reviewed; Journal article, 2023)With the increasing attention on structural reliability and integrity, the probabilistic fatigue behaviour of riveted joints is drawn more attention, more specifically in the influence that this may have on the fatigue ... -
Fatigue Strength Assessment of Steel Rollers: On the Reliability of the Strain Energy Density Approach on Real Components
(Journal article; Peer reviewed, 2018)Welded joints are one of the most widely applied methods to join different steel components. However, they introduce stress concentrators that are commonly known to reduce the fatigue strength of structures. Several methods ... -
Fatigue strength of blunt V-notched specimens produced by selective laser melting of Ti-6Al-4V
(Journal article, 2018)Selective Laser Melting (SLM) process is an Additive Manufacturing (AM) technique that allows producing metallic parts of any kind of geometry with densities greater than 99.5%. Complex shapes lead however to notches with ... -
Fatigue-related gait adaptations in children with cerebral palsy
(Peer reviewed; Journal article, 2023)Aim To obtain insights into the effects of fatigue on the kinematics, kinetics, and energy cost of walking (ECoW) in children with cerebral palsy (CP). Method In this prospective observational study, 12 children ... -
Fatigueless structures inspired by Nature: a case study
(Peer reviewed; Journal article, 2019)Biomimetic has begun to offer significant potential in providing unique solutions in materials science. However, the full potential of mimicking natural systems can be fully exploited only if we start to look the problem ... -
Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night
(Peer reviewed; Journal article, 2020)Recent discoveries of high levels of biological activity in the Arctic marine ecosystems during the polar night raise questions regarding the ecophysiology of the pelagic postlarval daubed shanny Leptoclinus maculatus. Of ... -
Fatty Acids Composition and HIV Infection: Altered Levels of n-6 Polyunsaturated Fatty Acids Are Associated with Disease Progression
(Peer reviewed; Journal article, 2023)Fatty acids (FAs) are important regulators of immune responses and innate defense mechanisms. We hypothesized that disturbed FA metabolism could contribute to the progression of HIV infection. Plasma levels of 45 FAs were ... -
Fatty Acids Composition of the Muscles of Leptoclinus maculatus (Stichaeidae) postlarvae from Kongsfjord and Rijpfjord, Spitsbergen
(Peer reviewed; Journal article, 2022)The fatty acids composition of total lipids and individual lipid classes (phospholipids and triacylglycerols) were studied in the muscles of daubed shanny Leptoclinus maculatus postlarvae at different stages of development ... -
Fault detection and classification in oil wells and production/service lines using random forest
(Peer reviewed; Journal article, 2020)This papers deals with the automatic detection and classification of faulty events during the practical operation of oil and gas wells and lines. The events considered here are part of the publicly available 3W database ... -
Fault detection and diagnosis of a blade pitch system in a floating wind turbine based on Kalman filters and artificial neural networks
(Peer reviewed; Journal article, 2021)This paper describes the development of a fault detection and diagnosis method to automatically identify different fault conditions of a hydraulic blade pitch system in a spar-type floating wind turbine. For fault detection, ... -
Fault Detection and Prediction in Smart Grids
(Chapter, 2018)Modern society is to a larger and larger extent dependant on electric energy, and hence the reliance on and utilization of the electric grid is increasing steadily. At the same time the production and consumption patterns ...