Browsing NTNU Open by Title
Now showing items 25151-25170 of 103935
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DUÅs skole- og barnehageprogram: En studie av 10 læreres erfaring med deltakelsen
(Master thesis, 2011)Denne masteroppgaven omhandler læreres erfaringer med deltakelse i DUÅs skole- og barnehageprogram, et veiledningsprogram rettet mot lærere som arbeider med små barn som viser atferdsvansker. Et utvalg av 10 lærere som ... -
Dubai between the global and the local
(Master thesis, 2011) -
Ducky: An Online Engagement Platform for Climate Communication
(Chapter, 2016)Climate change is an important area of concern today. Yet it is often difficult for individuals to estimate their own climate footprint and to understand their personal climate impact. However, an activity tracking approach ... -
Ducted Propellers: Behaviour in Waves and Scale Effects
(Doctoral thesis at NTNU;2015:299, Doctoral thesis, 2015)Ducted propellers find their application in a wide range of marine vessels, such as cargo ships, tugboats, submarines, trawlers etc. Preference over the open propeller depends on a variety of factors, the most common ... -
Ductile failure of aluminium plates: experiments, modelling and simulations
(Doctoral theses at NTNU;2023:65, Doctoral thesis, 2023)Numerical models and simulations are valuable tools to aid engineers in the design of products and structures and can help reduce the number of costly and time-consuming experiments needed. The modelling of ductile material ... -
Ductile failure prediction of thin notched aluminum plates subjected to combined tension-shear loading
(Journal article, 2018)The main goal of the present research is to check the suitability of the combined Equivalent Material Concept-Averaged Strain Energy Density (ASED) failure criterion, called EMC-ASED, in predicting the load-carrying capacity ... -
Ductile failure predictions using micromechanically-based computational models
(Peer reviewed; Journal article, 2022)Three different micromechanically-based computational models for fracture in porous ductile solids are compared and assessed. Model A is a unit cell model of a porous ductile solid comprising a uniform periodic distribution ... -
Ductile Fracture in Dual-Phase Steel: Theoretical, Experimental and Numerical Study
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:257, Doctoral thesis, 2012)The thesis is focused on quasi-static ductile fracture in the low range of stress triaxiality of the dual-phase steel Docol 600DL. The study includes mechanical testing, theoretical aspects of ductile fracture and numerical ... -
Ductile fracture of aluminium alloys in the low to moderate stress triaxiality range
(Doctoral theses at NTNU;2022:150, Doctoral thesis, 2022)This thesis investigates the effect of constituent particles on ductile fracture in 6000-series aluminium alloys in the low to moderate stress triaxiality range. In Part 1, tension tests on smooth and notched specimens ... -
Ductile Fracture of Steel Sheets under Dynamic Membrane Loading
(Journal article; Peer reviewed, 2017)Failure prediction assessment is conducted based on validated finite element simulations of impact tests performed on 1.8 mm dual-phase and 1.0 mm martensitic steel sheets. The sheets were clamped between two steel rings ... -
Ductile mechanisms of metals containing pre-existing nanovoids
(Journal article; Peer reviewed, 2016)The void growth in monocrystalline Cu and Fe are investigated by molecular dynamics simulations to reveal the ductile mechanisms based on dislocation emission and propagation. The results show that the void growth in Cu ... -
Ductile tearing of cryogenic valve components
(Peer reviewed; Journal article, 2020)The paper reports the result of an experimental investigation on the torsional failure mechanics of the rotating components of a cryogenic valve. The rotating assembly is composed of an AISI 316L shaft connected by two ... -
Ductile-Brittle Transition in Offshore Steel
(Master thesis, 2017)The main objective of this thesis was to investigate experimentally and numerically the main effects and interaction effects of temperature, strain rate and stress triaxiality on an offshore X65 steel. During preliminary ... -
Ductility and brittleness of lightweight aggregate concrete structures
(Doctoral theses at NTNU;2021:16, Doctoral thesis, 2021)Lightweight aggregate concrete (LWAC) has been used in construction since ancient Greek and Roman times, for more than two thousand years. With its low density, it was mainly used to reduce the weight of the structures. ... -
Ductility investigation of extruded profiles in an AA6063 alloy
(Master thesis, 2020)I bilindustrien jobbes det konstant mot å finne lettere, sterkere og mer kostnadseffektive materialer til produksjon og prosessering av bildeler. Dette fører til et større krav om kunnskap til materialenes mekaniske ... -
Ductility of aluminium alloy AA6016: An experimental and numerical study with application to sheet metal forming
(Master thesis, 2010)In the sheet metal forming industry numerical modeling and simulation can be used to study the effect of different parameters in an efficient and economical way. For these purposes proper material models are required. In ... -
Dugnad som arena for sosialt entreprenørskap : en kvalitativ studie av rollen av dugnad i NTNU Flyklubb
(Master thesis, 2018)Frivillig arbeid i form av dugnad har alltid vært faktor i det norske samfunnet. Den sterke dugnadsånden er innebygd i folkets kultur, og har gjennom årene bidratt til utvikling av de sosiale verdiene vi kjenner i dag. ... -
Dugnad under finanskrisen
(Chronicle, 2012-02-10) -
DugnadPlanlegger
(Bachelor thesis, 2019)Dugnader er ofte en viktig aktivitet i mange sin hverdag. Systemet har et ønske om å gjøre det lettere for både store og små arrangører å planlegge og organisere en dugnad. Applikasjonen er utviklet for dugnader, men kan ... -
Duke Ellington Studies
(Chapter, 2017)