Browsing Institutt for maskinteknikk og produksjon by Title
Now showing items 1251-1270 of 3979
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The effect of surface roughness and topography on the organic coating/steel interface stability
(Doctoral theses at NTNU;2020:304, Doctoral thesis, 2020)The study in this thesis, focused on the effect of surface roughness and topography on the organic coating/steel interface stability in humid air and corrosive conditions. A strong correlation between roughness, Rz, and ... -
The effect of surface treatment and orientation on fatigue crack growth rate and residual stress distribution of wire arc additively manufactured low carbon steel components
(Peer reviewed; Journal article, 2023)The directed energy deposition (DED) processes, such as laser metal deposition or Wire Arc Additive Manufacturing (WAAM), are gradually becoming the preferred method for fabrication of large-scale components using metal ... -
Effect of temperature-force factors and concentrator shape on impact fracture mechanisms of 17mn1si steel
(Journal article; Peer reviewed, 2017)The influence of the notch shape on the impact fracture of 17Mn1Si steel is investigated at different temperatures with the focus placed on the low-temperature behavior. An approach towards fracture characterization has ... -
Effect of the free surface on the fatigue crack front curvature at high stress asymmetry
(Journal article, 2019)The purpose of this paper is to investigate the effect of the vertex singularity on the fatigue crack front behaviour. Single edge notch bend specimens of steel EA4T and aluminium alloy 7075 of various thicknesses are ... -
Effect of the stress-strain state on the path of quasi-cleavage hydrogen-assisted cracking in low-carbon steel
(Peer reviewed; Journal article, 2021)Сonflicting data on the effect of the stress-strain state on the shape and path of quasi-cleavage cracks in hydrogen-embrittled steels and iron have been reported in the literature recently. However, this issue is important ... -
Effect of Transfer Film on Tribological Properties of Anti-Friction PEI- and PI-Based Composites at Elevated Temperatures
(Peer reviewed; Journal article, 2022)The structure, mechanical and tribological properties of the PEI- and PI-based composites reinforced with Chopped Carbon Fibers (CCF) and loaded with commercially available micron-sized solid lubricant fillers of various ... -
Effect of tungsten on the precipitation kinetics and localized corrosion resistance of super duplex stainless steels
(Journal article; Peer reviewed, 2018)Although extensively used in oil and gas production due to their excellent combination of mechanical properties and corrosion resistance, 25Cr super duplex stainless steels (SDSSs) are susceptible to the precipitation of ... -
Effect of Using Digital Twins for Assembly Line Rebalancing: A Multi-Scenario Analysis of the Assembly Line Productivity
(Master thesis, 2023)Produksjonssektoren følger nøye med på forskning på digital tvillingteknologi på grunn av deres potensiale til å øke produktivitet, kutte kostnader og forbedre produktkvalitet. Forskningen rundt denne teknologien har økt ... -
Effect of Vanadium and Rare Earth on the Structure, Phase Transformation Kinetics and Mechanical Properties of Carbide-Free Bainitic Steel Containing Silicon
(Peer reviewed; Journal article, 2022)Carbide-free bainitic (CFB) steels with a matrix of bainitic ferrite and thin layers of retained austenite, to reduce the manufacturing costs, usually do not contain alloying elements. However, a few reports were presented ... -
Effect of various type of nanoparticles on mechanical and tribological properties of wear-resistant peek + ptfe-based composites
(Peer reviewed; Journal article, 2021)The mechanical and tribological properties of polyetheretherketone (PEEK)- and PEEK + PTFE (polytetrafluoroethylene)-based composites loaded with and four types of nanoparticles (carbonaceous, metallic, bimetal oxide, and ... -
Effects and Analysis of Crane Boom Impact Damage for Offshore Cranes
(Master thesis, 2018)Cranes are important constructions on offshore installations. Offshore cranes with latticed boom are exposed for unwanted collision with other objects, damaging the load-carrying structure. This thesis targets to detect ... -
Effects of a Passive Tuned Mass Damper on Blade Root Impacts During the Offshore Mating Process
(Peer reviewed; Journal article, 2020)Single-blade installation is a conventional method for installing blades on monopile-type offshore wind turbines. A jack-up crane vessel is commonly used, and individual blades are lifted to the tower top height and mated ... -
Effects of chloride, sulfate and pH on the corrosion of tensile wires in grouted tendon ducts in Herøysundet bridge
(Master thesis, 2022)Over lang tid har korrosjon av armering skapt problemer for betong strukturer og det er lagt ned mye forskning for å forstå hva som forårsaker det. Effektene av faktorer som pH-nivå, aggressive ioner, karbonatisering, stål ... -
Effects of different indentation methods on fatigue life extension of cracked specimens
(Journal article; Peer reviewed, 2018)In this paper, 3 different indentation methods have been investigated for crack arresting and fatigue life enhancement of cracked components. The influence of residual stresses induced by indentation on fatigue crack growth ... -
Effects of different production technologies on mechanical and metallurgical properties of precious metal denture alloys
(Journal article; Peer reviewed, 2017)Abstract: Background: Precious metal alloys can be supplied in traditional plate form orinnovative drop form with high degree of purity. Objective: The aim of the present work is to evaluate the influence of precious metal ... -
Effects of interlayer density and surfactant on coupled thermal stress and moisture absorption in modified montmorillonite/polypropylene nanocomposite
(Peer reviewed; Journal article, 2020)Modified montmorillonite/polypropylene nanocomposites (NCs) are increasingly used in industrial applications such as subsea pipelines because hexadecyltrimethyl ammonium montmorillonite (HDTMA+‐Mt) enhances thermomechanical ... -
The effects of learning environments on student active learning
(Chapter, 2023)Student active learning has been shown to have a significant positive effect on learning outcomes as experienced by students. The learning environments where these activities take place are often simplified to describe the ... -
Effects of load fluctuation on hydropower tunnels
(Doctoral thesis at NTNU;2015:280, Doctoral thesis, 2015)This dissertation presents a study of the main challenges and consequences of imposing rapid hydropeaking production patterns on unlined hydropower tunnels. It contains a thesis part and four research papers. The main ... -
The effects of microporosity in struts of gyroid lattice structures produced by laser powder bed fusion
(Peer reviewed; Journal article, 2020)Additive manufacturing by laser powder bed fusion allows the production of complex parts including lattice structures in popular metal alloys such as Ti6Al4V. Lattice structures are a class of meta-materials which hold ... -
The effects of the van der Waals potential energy on the Young’s modulus of a polymer: comparison between molecular dynamics simulation and experiment
(Journal article, 2021)Molecular dynamics simulation were employed to investigate the effect of changing the potential energies describing primary and secondary bonds on the Young’s modulus of a polymer. The energies were changed by arbitrarily ...