Institutt for konstruksjonsteknikk: Recent submissions
Now showing items 21-40 of 1596
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Machine Learning Based Prediction of Nanoscale Ice Adhesion on Rough Surfaces
(Peer reviewed; Journal article, 2021)It is widely recognized that surface roughness plays an important role in ice adhesion strength, although the correlation between the two is far from understood. In this paper, two approaches, molecular dynamics (MD) ... -
Residual stresses and dimensional deviation in metal additive manufacturing: prediction and mitigation methods
(Doctoral theses at NTNU;2020:411, Doctoral thesis, 2020)Additive manufacturing (AM) has attracted wide attention over the past years due to its various advantages, such as design freedom, less production cost, and short production cycles. However, residual stresses and dimensional ... -
Phase development and mechanical response of low-level cement replacements with wood ash and washed wood ash
(Peer reviewed; Journal article, 2020)A significant increase is seen worldwide in the amounts of wood ashes (WAs) produced by the heating and power industry. This study investigates the potential utilisation of two different WAs as low-level cement replacements, ... -
A heuristic wear model for the contact strip and contact wire in pantograph – Catenary interaction for railway operations under 15 kV 16.67 Hz AC systems
(Peer reviewed; Journal article, 2020)The sliding contact between the pantograph and catenary allows the correct operation of electric trains. However, this contact induces wear on both the components involved in the process, namely the contact strip on the ... -
Heuristic models for wear prediction and dynamic-based condition monitoring techniques in pantograph-catenary interaction
(Doctoral theses at NTNU;2020:381, Doctoral thesis, 2020)Railway catenaries are key components of electric railways, representing for the trains both their power source and their performance limiter. Although the amount of electrified railways is noticeably lower than the ... -
Experimental and numerical study of dilation in mineral filled PVC
(Doctoral theses at NTNU;2020:388, Doctoral thesis, 2020)This thesis addresses the link between applied load and dilation caused by void growth in mineral-filled PVC employing both experimental and numerical techniques. The influence of stress triaxiality and strain rate on the ... -
Dynamic anti-icing surfaces (DAIS)
(Doctoral theses at NTNU;2020:330, Doctoral thesis, 2020) -
Micromechanical modelling of fracture in ductile alloys with applications to high-strength steel
(Doctoral theses at NTNU;2020:313, Doctoral thesis, 2020) -
Self-assembled superstructures of magnetic nanoparticles: advanced nanofabrication and enhanced mechanical properties
(Doctoral theses at NTNU;2020:271, Doctoral thesis, 2020)Artificial materials composed of self-assembled magnetic nanoparticles (i.e. magnetic superstructures) have attracted immense scientific interest in the past two decades due to their extraordinary collective behavior. An ... -
An experimental study on pre-stretched double-chamber 6000-series aluminium profiles subjected to quasi-static and dynamic axial crushing
(Peer reviewed; Journal article, 2020)Automotive crash boxes require a material selection with strength and ductility in a balanced combination. In this work, the behaviour of double-chamber AA6063 and AA6082 aluminium profiles subjected to quasi-static and ... -
Experimental Characterization and Modelling of the PLC Effect in an AlMg-Alloy
(Peer reviewed; Journal article, 2021)In the present work, uniaxial tension tests have been conducted to study the mechanical response of a commercial Al4.5wt%Mg alloy (AA5182). The measurements range from the strain rate of 10-4 to 100 s-1 at room temperature. ... -
Conceptual form-finding in structural engineering
(Doctoral theses at NTNU;2020:232, Doctoral thesis, 2020)The building industry is a growing industry, and it is expected to be expanding further in the near future. In the design, production and construction of new projects, the conceptual design is clearly the most creative ... -
Impact on porous polymer coated pipelines
(Doctoral theses at NTNU;2020:105, Doctoral thesis, 2020) -
Multi-scale modelling and simulation of ductile failure in aluminium structures
(Doctoral theses at NTNU;2020:374, Doctoral thesis, 2020) -
Anisotropic tensile behaviour of short glass-fibre reinforced polyamide-6
(Peer reviewed; Journal article, 2020)This paper presents an experimental investigation of injection-moulded short glass-fibre reinforced polyamide-6 reinforced with 0 wt.%, 15 wt.% and 30 wt.% fibres. The fibre orientation distributions are characterized by ... -
Inspection and Assessment of Corrosion in Pretensioned Concrete Bridge Girders Exposed to Coastal Climate
(Peer reviewed; Journal article, 2020)The most common methods for detecting chloride-induced corrosion in concrete bridges are half-cell potential (HCP) mapping, electrical resistivity (ER) measurements, and chloride concentration testing, combined with visual ... -
Detailed investigation of the shearing mechanism of β" precipitates in Al-Mg-Si alloys
(Peer reviewed; Journal article, 2020)The mechanism behind shearing of β'' precipitates in Al-Mg-Si alloys during deformation is investigated by applying advanced transmission electron microscopy (TEM) techniques and frozen phonon multislice TEM image simulations ... -
Physics-based and data-driven reduced order models: applications to coronary artery disease diagnostics
(Doctoral theses at NTNU;2020:362, Doctoral thesis, 2020)In this thesis we have developed reduced-order models for the prediction of pressure and flow in the arterial system and for the diagnosis of coronary artery disease. By reduced-order model we refer to a reduction of ... -
Model uncertainty assessment for wave- and current-induced global response of a curved floating pontoon bridge
(Peer reviewed; Journal article, 2020)The present paper provides a comparison between the numerical and experimental response for a generic floating pontoon bridge structure, thereby also serving to quantify the inherent uncertainties associated with both types ... -
Testing and modelling of multimaterial joints
(Doctoral theses at NTNU;2020:368, Doctoral thesis, 2020)The trend towards lightweight design in the automotive industry has led to increasingly optimal and complex structures, where fundamentally different materials are combined. An effective way of combining these would be to ...