Blar i NTNU Open på tittel
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Fatigue Analysis of Flexible Risers: A comparative study of different models for metal fatigue in flexible risers
(Master thesis, 2013)This thesis used different methods to model and predict the fatiguefrom wave loads on the tensile armor layers in a flexible riser in thebending stiffener area. The additional aim of the thesis was to givethe reader an ... -
Fatigue Analysis of Main Shaft with Split Collar - Utmattingsanalyser av deler til boring
(Master thesis, 2015)The task concerns a connection between a Top Drive shaft and a two part split collar resting on it. The main purpose of the connection is to transfer drilling-related loads from surrounding parts to the main shaft. Due to ... -
Fatigue Analysis of Mooring Lines on the Floating Wind Turbine Hywind Demo
(Master thesis, 2013)In the last decades the focus on developing renewable energy has increased tremendously. The main reason for this is the rapid increase of population, which requires enormous amounts of energy. Eventually we will run out ... -
Fatigue and activity after stroke. Secondary results from the Life After stroke study
(Journal article; Peer reviewed, 2020)Objectives The aim of this study was to describe how the prevalence of fatigue changed from the subacute phase to the chronic phase after stroke, and to investigate how activity was associated with fatigue among participants ... -
Fatigue and cognition: Pupillary responses to problem-solving in early multiple sclerosis patients
(Journal article; Peer reviewed, 2017)Introduction In early multiple sclerosis (MS) patients, cognitive changes and fatigue are frequent and troublesome symptoms, probably related to both structural and functional brain changes. Whether there is a common ... -
Fatigue assessment methods for welded structures and their application to an aluminium T-joint
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:129, Doctoral thesis, 2006)Following a short introduction, the state-of-the-art fatigue life assessment methods based on the nominal stress, the structural hot spot stress and the effective notch stress, as well as the crack propagation analysis are ... -
Fatigue assessment of a generic steel bridge - A comparison of NS-EN 1993-1-9 and DNVGL-RP-C203
(Master thesis, 2021)Denne masteroppgaven har sammenlignet utmattingsberegning i sveiste detaljer i en generisk bro ved bruk av standardene NS-EN 1993-1-9 og DNVGL-RP-C203. Broen består av et ortotropisk dekke og fagverk på begge sidene. Det ... -
Fatigue assessment of a generic steel bridge - A comparison of NS-EN 1993-1-9 and DNVGL-RP-C203
(Master thesis, 2021)Denne masteroppgaven har sammenlignet utmattingsberegning i sveiste detaljer i en generisk bro ved bruk av standardene NS-EN 1993-1-9 og DNVGL-RP-C203. Broen består av et ortotropisk dekke og fagverk på begge sidene. Det ... -
Fatigue Assessment of Aluminium Welded Box-stiffener Joints in Ships
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:88, Doctoral thesis, 2008)One of the trends in ship building is the building of larger and faster ships. However, increasing demand for speed has forced the ship designers to search for alternative materials to reduce the weight of the ship without ... -
Fatigue assessment of as‐built and heat‐treated Inconel 718 specimens produced by additive manufacturing including notch effects
(Journal article; Peer reviewed, 2020)The fatigue behaviour of notched and unnotched specimens produced by additively manufactured Inconel 718 were analysed in the as‐built and heat‐treated conditions. The surfaces display high roughness and defects acting as ... -
Fatigue Assessment of AZ31 Magnesium Alloy Weldments - Application of a Local Energy-Based Method
(Master thesis, 2018)Traditional stress-based fatigue criterions are highly dependent of geometry and loading mode and are often based on idealized geometries and loading conditions. These fatigue criteria are seldom applicable in general ... -
Fatigue Assessment of Components Subjected to Non-Proportional Stress Histories
(Master thesis, 2013)The fatigue assessment of components subjected to complex loading histories is a challenging topic. Several criteria intended for use under multiaxial stress-states and non-proportional loading have been proposed by many ... -
Fatigue Assessment of Components Subjected to Non-Proportional Stress Histories
(Master thesis, 2013)The fatigue assessment of components subjected to complex loading histories is a challenging topic. Several criteria intended for use under multiaxial stress-states and non-proportional loading have been proposed by many ... -
Fatigue Assessment of Inconel 625 Produced by Directed Energy Deposition from Miniaturized Specimens
(Peer reviewed; Journal article, 2022)In recent years, the industrial application of Inconel 625 has grown significantly. This material is a nickel-base alloy, which is well known for its chemical resistance and mechanical properties, especially in high-temperature ... -
Fatigue Assessment of Mooring Chain Considering the Effects Of Mean Load and Corrosion
(Peer reviewed; Journal article, 2021)Results from full scale fatigue tests of offshore mooring chains performed in recent years have revealed considerable influence of both mean load and corrosion condition on the fatigue capacity. It has been shown that a ... -
Fatigue Assessment of Notches and Cracks in Ductile Cast Iron
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:224, Doctoral thesis, 2011)The steadily increasing use of ductile cast iron and the necessity for building larger cast components present new challenges to the designers. In despite of large cast components are designed adhered to standards, unexpected ... -
Fatigue Assessment of Offshore Wind Turbine Support Structures with the Frequency Domain Method
(Master thesis, 2015)Offshore wind energy has shown great potential and can be a great contributor when it comes to solving some of the climate challenges that the world faces today. However, both design and operational cost has been a limiting ... -
Fatigue Assessment of Offshore Wind Turbines Using Measurements of Individual Turbines and Machine Learning Techniques
(Master thesis, 2019)Tretthet er ofte en styrende designfaktor for havvindmøller. Siden utformingen av offshore vindturbiner inkluderer konservatisme, kan den faktiske akkumulerte tretthetsskaden være lavere enn hva turbinen er beregnet på. I ... -
Fatigue assessment of semi-circular notched specimens produced by Laser Engineered Net Shaping method
(Journal article; Peer reviewed, 2018)As a primary failure mechanism, fatigue failure of additively manufactured metallic parts has attracted considerable attention in both aerospace and biomedical applications. According to some specific design requirements, ... -
Fatigue assessment of steel load-carrying cruciform welded joints by means of local approaches
(Journal article, 2018)In this paper, local approaches are employed to analyse stress distributions, local fatigue indicators of weld toe, and weld root in load‐carrying cruciform welded joints (LCWJs). An extension of previous available equations ...