Blar i Institutt for konstruksjonsteknikk på emneord "VDP::Teknologi: 500"
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A probabilistic-based approach for predicting mould growth in timber building envelopes: Comparison of three mould models
(Journal article; Peer reviewed, 2017)This paper applies a probabilistic-based approach as a methodology to analyze and compare the mould growth computations’ results from three different mould models. This approach, instead of the conventional deterministic ... -
Atomic Insights into Hydrogen-Grain Boundary Interactions
(Doctoral theses at NTNU;2023:120, Doctoral thesis, 2023)Derived from the most abundant element in the universe, hydrogen is the smallest element and, at the same time, a clean, mobile, and efficient energy carrier. Nowadays, hydrogen is regarded as the fuel of future and could ... -
Behaviour and modelling of multi-layered joints
(Doctoral theses at NTNU;2023:322, Doctoral thesis, 2023)This thesis concerns the behaviour and modelling of multi-layered joints. The aim of the thesis is to provide a fundamental understanding of the behaviour of mechanical joints and their numerical modelling. The work mainly ... -
Behaviour and modelling of two semi-crystalline polymers over a wide range of rates and temperatures
(Doctoral theses at NTNU;2023:104, Doctoral thesis, 2023)Through this thesis, I seek to explore how to characterise and simulate the strain rate and temperature dependent material behaviour of semi-crystalline polymers. To this end, a cross-linked polyethylene and a polypropylene ... -
Behaviour, modelling and simulation of thin steel plates subjected to combined blast and impact loading
(Doctoral thesis, 2022)This thesis studies the effects of combined fragment impact and blast loading on thin steel plates. It is here assumed that the fragments strike before the arrival of the blast wave. The fragments are represented through ... -
Biomechanics of degenerative mitral valve leaflets: Mechanical behavior, collagen structure, and numerical simulations
(Doctoral theses at NTNU;2023:395, Doctoral thesis, 2023)Degenerative mitral valve disease impacts around 2% of the population and leads to mitral regurgitation because of valvular incompetence. Two distinct phenotypes of degenerative mitral valve disease are fibroelastic ... -
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 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 ... -
Fatigue crack initiation in corroded offshore mooring chains
(Doctoral theses at NTNU;2022:296, Doctoral thesis, 2022)Mooring chains on floating offshore structures suffer from combined degradation from corrosion and fatigue. Corrosion reduces cross-sectional areas of the chains and creates surface pits. During cyclic loading of the chains, ... -
Field investigations of crosswinds and vehicle-driver response on bridges
(Doctoral theses at NTNU;2023:41, Doctoral thesis, 2023)There are currently no scientific, evidence-based guidelines for designing windrelated traffic regulations on Norwegian road bridges. The topic of crosswindexposed vehicles on bridges has been studied theoretically, ... -
Force identification and response estimation in floating and suspension bridges using measured dynamic response
(Doctoral theses at NTNU;2019:88, Doctoral thesis, 2019)The trend of constructing bridges that are longer, more slender, and more flexible increases the importance of the assessment of dynamic behavior. Herein, it is imperative to have a good understanding of the environmental ... -
Fundamental Mechanisms of Ice Adhesion
(Doctoral theses at NTNU;2020:87, Doctoral thesis, 2020)Uønsket isdannelse skaper bade daglige problemer og farlige situasjoner hvert år. Heldigvis er det måter å hindre slik uønsket ising. Overflater med lav isvedheft, der isen sklir rett av overflaten, er en lovende metode ... -
Hydrogen embrittlement in steels: predictive models and integrity assessment
(Doctoral theses at NTNU;2023:123, Doctoral thesis, 2023)Hydrogen embrittlement (HE) is a well-recognized challenge as it can degrade the mechanical properties of most structural steels, leading to premature failure of hydrogen infrastructures. Continuum scale simulation is an ... -
The impact of curing temperatures on Portland composite cements – hydrate assemblage, porosity, and compressive strength
(Doctoral theses at NTNU;2022:374, Doctoral thesis, 2022)Cement production stands for approx. 8% of the man-made CO2 emissions. One of the most common ways to reduce CO2 emissions in cement production is by replacing part of the clinker with supplementary cementitious materials ... -
Load effects of alkali-silica reaction in reinforced concrete beam bridges - Material testing, Constitutive modelling and Numerical simulation
(Doctoral theses at NTNU;2023:20, Doctoral thesis, 2023)Alkali-silica reaction (ASR) is a deterioration process in concrete that was discovered in the mid-1930s, and which still affects concrete structures all over the world. ASR is considered a multi-scale phenomenon; it is a ... -
Load model of historic traffic for fatigue life estimation of Norwegian railway bridges
(Doctoral theses at NTNU;2019:73, Doctoral thesis, 2019)Material fatigue is the primary damage mechanism in steel railway bridges and ultimately causes material fracture and eventually component and system failure. It is essential that the infrastructure owner can predict and ... -
Mechanical behaviour and material modelling of an additively manufactured polymer
(Doctoral theses at NTNU;2023:333, Doctoral thesis, 2023)This thesis presents the characterisation and constitutive modelling of the mechanical behaviour of a commercial additively manufactured polymer produced with the stereolithography process. The first part of the characterisation ... -
Modeling and experiments in transient potential drop measurements for non-destructive evaluation
(Doctoral theses at NTNU;2022:146, Doctoral thesis, 2022)Electromagnetic non-destructive evaluation methods are commonly used in inspection and health monitoring of steel structures. The electromagnetic properties of ferromagnetic steel are well known for being correlated with ... -
Modeling of glass exposed to extreme loadings
(Doctoral theses at NTNU;2023:352, Doctoral thesis, 2023)The interest in the load bearing capacity of glass is gradually increasing as a consequence of increased demand for transparency in buildings and vehicles and more strict safety requirements. Due to the stochastic and ... -
Molecular Insights into Hydrate Adhesion on Surfaces
(Doctoral theses at NTNU;2024:98, Doctoral thesis, 2024)Gas hydrate deposition and subsequent plugging in pipelines pose a significant hazard to the exploration and transportation of deep-water natural gas resources. Deploying passive anti-hydrate surfaces has emerged as a ...