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In situ field measurements of the temporal evolution of low-frequency sea-ice dielectric properties in relation to temperature, salinity, and microstructure
(Peer reviewed; Journal article, 2016)The seasonal evolution of sea-ice microstructure controls key ice properties, including those governing ocean– atmosphere heat and gas exchange, remote-sensing signatures, and the role of the ice cover as a habitat. ... -
The Entrainment and Migration of Crude Oil in Sea Ice, the Use of Vegetable Oil as a Substitute, and Other Lessons from Laboratory Experiments
(Peer reviewed; Journal article, 2017)Understanding the interaction between oil and sea ice is essential in the development of oil spill detection and response technology in the Arctic. Laboratory experiments were performed to examine oil migration in sea ice ... -
Finite element analysis of shear deformation in reinforced concrete shear-critical beams
(Journal article; Peer reviewed, 2017)The objective of this paper was to study the contribution of shear deformation in reinforced concrete (RC) shear-critical beams. A 2D concrete material model based on smeared fixed crack was presented and incorporated into ... -
Non-linear static behaviour of ancient free-standing stone columns
(Peer reviewed; Journal article, 2017)This work investigated the non-linear behaviour of ancient natural stone columns in the Mediterranean region made from multiple blocks or ‘drums’. A two-dimensional custom-made computational model based on the discrete-element ... -
Experimental and Micro-CT study on the Oil Distribution in laboratory grown Sea Ice
(Peer reviewed; Journal article, 2017)Increasing activities in Arctic waters bare a risk of oil spills under ice-covered conditions and afford sound understanding of the interplay between sea ice and oil. Towards better knowledge, this study focuses on X-ray- ... -
Performance of RC Walls with Openings Strengthened by Fiber Reinforced Polymers: An Experimental and Theoretical Investigation
(Chapter, 2017)Redesigning buildings to improve their space efficiency and allow changes in use is often essential during their service lives to comply with shifts in living standards and functional demands. This may require the introduction ... -
State of research on shear strengthening of RC beams with FRCM composites
(Journal article; Peer reviewed, 2017)This paper summarizes the state of research on the topic of shear strengthening of RC beams using externally bonded FRCM composites. In the first part of this paper, a detailed bibliographical review of the literature on ... -
Examination of Sea Ice Cover in Norwegian Fjords
(Lecture, 2017)Presented are two steps being taken to examine sea ice coverage in Norwegian fjords as part of a larger study to improve our understanding of ice formation and breakup processes in these regions and implications for oil ... -
Use of image correlation system to study the bond behavior of FRCM-concrete joints
(Journal article; Peer reviewed, 2017)This paper presents a non-contact measurement approach, based on digital photogrammetry,applied to the experimental study of the bond behavior of fiber reinforced cementitious matrix composite to concrete joints tested in ... -
Recent ice conditions in North-Norwegian Porsangerfjorden
(Peer reviewed; Journal article, 2017)Ice is a common occurrence in mainland Norwegian fjords in the vicinity of river mouths in winter. Fjord ice provides a wide array of services to society, including (1) acting as a coastal buffer (e.g. from pollution) and ... -
Failure tests on concrete bridges: Have we learnt the lessons?
(Journal article; Peer reviewed, 2017)Full-scale failure tests of bridges are important for improving understanding of bridges’ behaviour and refining assessment methods. However, such experiments are challenging, often expensive, and thus rare. This paper ... -
MOSIDEO/CIRFA Experiments on Behavior and Detection of Oil in Ice
(Lecture, 2017)- Preparedness and response to oil in sea ice-covered waters - When does oil melt out of the ice - When can oil be detected with remote sensing techniques? -
Assessment of RC walls with cut-out openings strengthened by FRP composites using a rigid-plastic approach
(Journal article; Peer reviewed, 2017)Building refurbishment works frequently require the cutting of new openings in concrete walls. Cutting new openings weakens the overall response of such elements, so they usually require strengthening. However, current ... -
Concrete walls with cutout openings strengthened by FRP confinement
(Peer reviewed; Journal article, 2017)Redesigning buildings to improve their space efficiency and allow changes in use is often essential during their service lives to comply with shifts in living standards and functional demands. This may require the introduction ... -
Effect of Confinement with FRCM Composites on Damaged Concrete Cylinders
(Journal article; Peer reviewed, 2017)Confinement of axially loaded concrete members in existing structures is required when a change in use is expected or when there is a need to upgrade the structure to meet current design standards. In addition, after unusual ... -
Effect of Oil Pollution and Ice Formation on Microbial Community of Seawater from Ofotfjorden, Norway
(Chapter, 2018)Oil spill in ice-covered waters can become entrapped in sea ice and may be subjected to biodegradation by sea ice microorganisms. The extent of the hydrocarbon biodegradation, and microorganisms involved in such process ... -
Axially Loaded RC Walls with Cutout Openings Strengthened with FRCM Composites
(Journal article; Peer reviewed, 2018)Abstract: Upgrading existing buildings to new functional requirements may require new openings that can weaken the structure, prompting the need for strengthening. In such cases traditional strengthening solutions, such ... -
Parametric Study on Masonry Arches Using 2D Discrete-Element Modeling
(Journal article; Peer reviewed, 2018) -
An overview of trends and regional distribution of thermal ice loads on dams in Norway
(Chapter, 2018)Norway has over 3000 dams, over half of which are concrete dams [1]. Static ice loads are considered as part of dam design and during period safety review. They present a significant fraction of the total design load of ... -
Morphology, internal structure and formation of ice ridges in the sea around Svalbard
(Journal article; Peer reviewed, 2018)The results from 3 years of comprehensive field investigations on first-year ice ridges in the Arctic are presented in this paper. The scopes of these investigations were to fill existing knowledge gaps on ice ridges, gain ...