Browsing Institutt for konstruksjonsteknikk by Title
Now showing items 1267-1286 of 2483
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Impact on Duplex Stainless Steel Pipes with and without Precipitated Sigma phase
(Master thesis, 2010)A manufacturing defect in pipe fittings supplied to the oil and gas industry has resulted in installed components with unknown impact capacity. If the altered capacity is not sufficient, production stops and expensive ... -
Impact on Duplex Steel Pipes with Precipitated Sigma-phase: Modeling a Full-scale Impact Test on Pipe Fittings
(Master thesis, 2012)Duplex stainless steel (DSS) is a common material in offshore pipe fittings. A manufacturing defect has altered the behavior of the components through an erroneous heat treatment, which has led to precipitation of 𝜎-phase. ... -
Impact on polymer-coated pipelines
(Master thesis, 2020)Denne masteroppgaven inneholder en eksperimentell og numerisk undersøkelse av den mekaniske styrken til undersjøiske rørledninger med isolasjonslag av polymer. Målet med oppgaven var å finne ut hvordan undersjøiske ... -
Impact on polymer-coated pipelines
(Master thesis, 2020)Denne masteroppgaven inneholder en eksperimentell og numerisk undersøkelse av den mekaniske styrken til undersjøiske rørledninger med isolasjonslag av polymer. Målet med oppgaven var å finne ut hvordan undersjøiske ... -
Impact on porous polymer coated pipelines
(Doctoral theses at NTNU;2020:105, Doctoral thesis, 2020) -
Implementation of a non-linear foundation model for soil-structure interaction analysis of offshore wind turbines in FAST
(Journal article; Peer reviewed, 2017)Bottom-fixed offshore wind turbines (OWTs) involve a wide range of engineering fields. Of these, modelling of foundation flexibility has been given little priority. This paper investigates the modelling of bottom-fixed ... -
Implementation of isogeometric thin shell analysis within an object oriented computing environment
(Master thesis, 2018)The drawback in today's computational analysis in structural engineering is that design and analysis are not integrated in a unified platform. A majority of the time spent in structural analysis is used to transform a ... -
Implementation of seismic soil-structure interaction in OpenFAST and application to a 10MW offshore wind turbine on jacket structure
(Master thesis, 2021)Den planlagte utbyggingen av havvindparker i områder utsatt for seismisk aktivitet, som Taiwan, Kina, Japan og Nord-Amerika, har fått industrien til å stille spørsmål ved ytelsen til fundamentene som tidligere har blitt ... -
Implementation of seismic soil-structure interaction in OpenFAST and application to a 10MW offshore wind turbine on jacket structure
(Master thesis, 2021)Den planlagte utbyggingen av havvindparker i områder utsatt for seismisk aktivitet, som Taiwan, Kina, Japan og Nord-Amerika, har fått industrien til å stille spørsmål ved ytelsen til fundamentene som tidligere har blitt ... -
Implementation of structrual joint design and robot assembly in The Digital Workflow of Parametric Structural Design
(Master thesis, 2019)Konseptuell design er en unik mulighet til å ta del i designprosessen som en helhet, og skape konstruksjoner som både er meningsfulle for ingeniøren, arkitekten og de som skal få jobben gjort. Ikke minst er det en fordel ... -
Implementation of Tetrahedral Elements in a Finite Element Method Plug-in for Grasshopper
(Master thesis, 2022)I nyere tid har arkitekter og bygningsingeniører designet komplekse gitterskall ved hjelp av form-finningsmetoder i det algoritmiske modelleringsverktøyet Grasshopper. Knutepunktene i gitterskall påvirker i stor grad den ... -
Implementation of the Cracked Membrane Model for Crack Width Predictions in Reinforced Concrete Shell Structures
(Master thesis, 2018)Crack control is an important part of design of reinforced concrete shell structures in the serviceability limit state. Crack width calculations are performed in accordance with design codes, which are based on beams and ... -
Implementering av jordskjelvsberegninger i fap2D
(Master thesis, 2013)Rapporten presenterer arbeidet som er lagt ned i programmet med arbeidstittel fap2D, et program for statisk og dynamisk analyse av plane rammekonstruksjoner.Produktet på denne oppgaven er siste versjon av programmet. ... -
Implementering av parametrisk optimalisering i praksis: dimensjonering og valg av bæresystemer i bygninger
(Master thesis, 2019)Sammendrag: Automatisering av arbeidsprosesser i byggebransjen har i de siste 10-15 årene vært i stor utvikling, der effektiviteten av gjenbruk av informasjon er enda et nytt begrep i industrien. Det viser seg at ... -
Improved design of the support structure for the NOWITECH 10 MW Reference Turbine
(Master thesis, 2014)The aim of this thesis is to improve the support structure for the Nowitech 10 MW reference turbine (NRT) by optimizing the thickness and diameter of legs and braces section by section. This is a so called full-height ... -
Improved finite element model updating of a full-scale steel bridge using sensitivity analysis
(Journal article; Peer reviewed, 2021)There are many uncertainties related to existing bridges that are approaching or have exceeded their original design life. Lifetime extension analysis of bridges should be based on validated numerical models that can be ... -
In silico analysis provides insights for patient-specific annuloplasty in Barlow's disease
(Peer reviewed; Journal article, 2023)Objective To predict the required mitral annular area reduction in patients with Barlow's disease to obtain a predefined leaflet area index by a novel in silico modeling method. Methods Three-dimensional echocardiography ... -
In vitro and in situ tests to evaluate the bacterial colonization of cementitious materials in the marine environment
(Peer reviewed; Journal article, 2020)Civil engineers have a responsibility to take measures to protect marine biodiversity by selecting more bioreceptive construction materials in the design of marine infrastructure, for better biodiversity conservation. In ... -
Increasing ductility in heavily reinforced LWAC structures
(Journal article; Peer reviewed, 2014)This study focuses on the ductility of lightweight aggregate concrete (LWAC) in compression. For practical purposes, the well-known brittleness of LWAC compared to normal density concrete has limited the use of the material. ...