Institutt for konstruksjonsteknikk
Recent Submissions
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Long-term extreme buffeting response investigations for longspan bridges considering uncertain turbulence parameters based on field measurements
(Doctoral theses at NTNU;2021:216, Doctoral thesis, 2021)When bridges become increasingly longer, the dynamic behavior from wind and waves can dominate the structural load effects. To build better knowledge about the dynamic behavior of long-span bridges subjected to turbulent ... -
Mechanisms and enhancement of CO2 condensation heat transfer
(Doctoral theses at NTNU;2020:236, Doctoral thesis, 2021)The aim of this thesis is to increase the understanding of the mechanisms governing Carbon Dioxide (CO2) condensation, and in that way finding a pathway towards a higher condensation efficiency. Liquefaction of CO2 occurs ... -
On the coupling of damage and single crystal plasticity for ductile polycrystalline materials
(Peer reviewed; Journal article, 2021)A crystal plasticity model accounting for damage evolution and ductile failure in a single crystal due to the presence of voids or micro-cracks is presented. An accurate, robust and computationally efficient single crystal ... -
The effect of curing temperature on autogenous deformation of fly ash concretes
(Peer reviewed; Journal article, 2020)For concrete subjected to restrained conditions, autogenous deformation (AD) and thermal dilation (TD) are the main driving forces behind stress development in the hardening phase. Generally, AD in concrete is modelled by ... -
Workshop on Moisture in Concrete, Trondheim, Norway 6–7 February 2012. Measurement of moisture and relative humidity in concrete. FA 3 Technical performance. FA 3.2 Service life
(COIN Projet report;, Research report, 2016)SINTEF and NTNU organized a WORKSHOP on moisture in concrete, 6th-7th February 2012 in Trondheim. The workshop was related to and supported by the COIN Focus Areas 3.1 “Crack free concrete structures” and 3.2 “Service ... -
Characterization and modeling of the mechanical behavior of polymer foam
(Doctoral theses at NTNU;2021:173, Doctoral thesis, 2021)Polymer foams are often used in safety applications, for example in pedestrian impact protection where a polymer foam bumper can increase pedestrian safety in the event of an accident. Application of this type of material ... -
Condensation heat transfer of CO2 on Cu based hierarchical and nanostructured surfaces
(Peer reviewed; Journal article, 2021)Phase-change processes such as condensation are efficient means of heat transfer. However, condensation is also an energy-intensive process and extensive research is conducted to increase the heat transfer efficiency. ... -
Effects of interconnections between timber floor elements: dynamic and static evaluations of structural scale tests
(Peer reviewed; Journal article, 2021)Long-span timber floor elements increase the flexibility of a building and exhibit a significant market potential. Timber floor elements are endeavouring to fulfil this potential, but building projects employing long-span ... -
Efficient prediction of wind and wave induced long-term extreme load effects of floating suspension bridges using artificial neural networks and support vector machines
(Journal article; Peer reviewed, 2020)Long-term extreme load effects are one of the primary concerns in the design of civil and offshore structures. Such load effects can be evaluated using the accurate but computationally demanding full long-term method or ... -
Anisotropic Plasticity and Fracture of Three 6000-Series Aluminum Alloys
(Peer reviewed; Journal article, 2021)The influence of microstructure on plasticity and fracture of three 6000-series aluminum alloys is studied with emphasis on the anisotropy caused by the extrusion process. Tension tests on smooth and notched specimens are ... -
Performance of a Linear Solution for Approximating Nonlinear Response of Reinforced Concrete Structures Subjected to Earthquake Shaking
(Chapter, 2020)Nonlinear Time History Analyses (NTHA) are generally regarded as the most accurate way of predicting the dynamic response of a structure to a given seismic ground motion. However, these types of analyses are computationally ... -
Competitive timber floors Optimisation of hollow section timber floor elements for adaptable buildings
(Doctoral theses at NTNU;2021:134, Doctoral thesis, 2021) -
Effect of side branch flow upon physiological indices in coronary artery disease
(Peer reviewed; Journal article, 2020)Recent efforts have demonstrated the ability of computational models to predict fractional flow reserve from coronary artery imaging without the need for invasive instrumentation. However, these models include only larger ... -
A spatial coupling model to study dynamic performance of pantograph-catenary with vehicle-track excitation
(Peer reviewed; Journal article, 2021)In the high-speed railway industry, the pantograph-catenary system is responsible to provide continuous electric energy for the high-speed train. The pantograph-catenary system suffers multiple impacts from the complex ... -
Contact Wire Irregularity Stochastics and Effect on High-speed Railway Pantograph-Catenary Interactions
(Peer reviewed; Journal article, 2020)In high-speed rail operations, contact wire irregularity (CWI) in a catenary is a common disturbance to the pantograph-catenary interaction performance, which directly affects the quality of current collection. To describe ... -
Effective Measures to Improve Current Collection Quality for Double Pantographs and Catenary Based on Wave Propagation Analysis
(Peer reviewed; Journal article, 2020)The pantograph installed on the train roof is responsible for collecting the electrical energy via the sliding contact with the catenary constructed along the railroad. To enhance the carrying capacity of the high-speed ... -
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities
(Peer reviewed; Journal article, 2020)In high-speed rail operations, the irregularity of the overhead system is a typical disturbance that affects the pantograph-catenary interaction performance. The existing methods, which treat the contact wire irregularities ... -
A novel methodology for design optimization of heat recovery steam generators with flow-induced vibration analysis
(Peer reviewed; Journal article, 2021)Design of compact, lightweight, and robust heat recovery steam generators (HRSGs) is important for the implementation of offshore bottoming cycles. In this work, a novel methodology integrating flow-induced vibration ... -
On the effect of pilot holes on the mechanical behaviour of flow-drill screw joints. Experimental tests and mesoscale numerical simulations
(Peer reviewed; Journal article, 2021)This research work investigated in detail the mechanical performance of a flow-drill screw connection of two aluminium plates with and without pilot holes. An extensive experimental campaign involving material and joint ...
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