Blar i Publikasjoner fra CRIStin - NTNU på tittel
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Fatigue assessment of welded joints by means of the strain energy density method: Numerical predictions and comparison with eurocode 3
(Journal article; Peer reviewed, 2019)The main aim of the present work is to investigate the effects of different parameters on the fatigue strength of four different welded details through an energetic approach based on the Strain Energy Density failure ... -
Fatigue Behavior of Metallic Components Obtained by Topology Optimization for Additive Manufacturing
(Peer reviewed; Journal article, 2021)The main goal of the present research is to propose an integrated methodology to address the fatigue performance of topology optimized components, produced by additive manufacturing. The main steps of the component design ... -
Fatigue behavior of porous Ti-6Al-4V made by laser-engineered net shaping
(Journal article; Peer reviewed, 2018)The fatigue behavior and fracture mechanisms of additively manufactured Ti-6Al-4V specimens are investigated in this study. Three sets of testing samples were fabricated for the assessment of fatigue life. The first batch ... -
Fatigue Capacity of Concrete Subjected to Partially Loaded Areas
(Chapter, 2022)The compressive strength of concrete at bearing areas is increased due to the confinement of surrounding concrete and reinforcement. In these partially loaded areas, local crushing and transverse tension forces must be ... -
Fatigue crack detection for lifetime extension of monopile-based offshore wind turbines
(Journal article; Peer reviewed, 2017)Lifetime extension becomes increasingly crucial for industry, since the first offshore wind farms face the end of their design lifetime. The remaining useful lifetime of offshore foundations is driven by fatigue design and ... -
Fatigue crack growth behavior of Ni-Cr-Mo-V steel welded joints considering strength mismatch effect
(Peer reviewed; Journal article, 2021)High strength steel welded joints are usually fabricated by heterogeneous weld metal for reducing the negative impacts of microstructural characteristics and defects on mechanical properties, such as hydrogen embrittlement ... -
Fatigue crack growth in mooring chain steel at different mean load levels
(Peer reviewed; Journal article, 2023)The fatigue crack growth rates of R4 mooring chain steel at different R-ratios are investigated. Crack growth experiments are performed at three different R-ratios, 0.1, 0.3 and 0.7, utilizing compact tension specimens in ... -
Fatigue Crack Growth Rate at Material and Geometry Transitions in Glass-Epoxy Composites
(Peer reviewed; Journal article, 2021)An element test specimen with ply drops, intended to be representative of a composite structure of varying thickness such as the main laminate in a wind turbine rotor blade structure, is used to investigate the fatigue ... -
Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model
(Journal article; Peer reviewed, 2017)Fatigue crack growth (FCG) rates have traditionally been formulated from fracture mechanics, whereas fatigue crack initiation has been empirically described using stress-life or strain-life methods. More recently, there ... -
Fatigue Damage Comparison of Mechanical Components in a Land-based and a Spar Floating Wind Turbine
(Journal article; Peer reviewed, 2015)This paper investigates the fatigue damage of the gears and bearings in a land-based and a spar-type floating wind turbine. The reference 5 MW NOWITECH gearbox is used on a land-based and a floating spar wind turbine. ... -
Fatigue Damage on Offshore Wind Turbines by a Cell Mapping Method
(Journal article; Peer reviewed, 2018)Due to large variability of the offshore environment, the load analysis of an offshore wind turbine is a complex task. It is normally performed in the time domain, by running stochastic simulations. This is usually very ... -
Fatigue design sensitivities of large monopile offshore wind turbines
(Peer reviewed; Journal article, 2022)The input for fatigue analyses of offshore wind turbines is typically chosen based on design values provided by design standards. While this provides a straightforward design methodology, the contribution of different input ... -
Fatigue Following Pediatric Acquired Brain Injury: Interplay With Associated Factors in a Clinical Trial Population Compared to Healthy Controls
(Peer reviewed; Journal article, 2021)Objective: The aims of the present study were to compare fatigue levels in children with pediatric acquired brain injury (pABI) with healthy controls (HCs), and examine the interplay of fatigue with associated factors. ... -
Fatigue in young adults with juvenile idiopathic arthritis 18 years after disease onset: data from the prospective Nordic JIA cohort
(Journal article; Peer reviewed, 2021)Background: To study fatigue in young adults with juvenile idiopathic arthritis (JIA) 18 years after disease onset, and to compare with controls. Methods: Consecutive children with onset of JIA between 1997 and 2000, from ... -
Fatigue investigation of complex weldments by the means of the local strain energy density approach
(Journal article; Peer reviewed, 2018)The paper investigates the use of an energetic approach based on the strain energy density failure criteria to predict the fatigue life of welded joints in aluminum alloy. The cited criterion has already been proved valid ... -
Fatigue life assessment for a welded detail: advantages of a local energetic approach and experimental validation
(Journal article; Peer reviewed, 2018)In modern civil buildings, as well as in mechanical and naval constructions, welding is a widely diffused technological process. The fatigue assessment, as design or verification procedure, of a welded joint to evaluate ... -
Fatigue life assessment of notched round bars under multiaxial loading based on the total strain energy density approach
(Journal article, 2018)The main purpose of this paper is the fatigue assessment in lateral U-shaped notched round bars under bending-torsion loading. Despite its importance in the context of mechanical design, very little work has been done in ... -
Fatigue of additively manufactured 316L stainless steel: The influence of porosity and surface roughness
(Journal article; Peer reviewed, 2019)The fatigue behaviour of additively manufactured (AM) 316L stainless steel is investigated with the main emphasis on internal porosity and surface roughness. A transition between two cases of failure are found: failure ... -
Fatigue of V-notched ZK60 magnesium samples: X-ray damage evolution characterization and failure prediction
(Journal article, 2020)Magnesium and its alloys are very attractive lightweight materials and have a potential of applications in different industries. However, their applications as materials for load bearing components are hindered by the ... -
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 ...