Browsing NTNU Open by Author "Kristoffersen, Martin"
Now showing items 41-49 of 49
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Projectile Impact on Plain and Reinforced Concrete Slabs
Jacobsen, Øystein Eirik Kvist; Kristoffersen, Martin; Dey, Sumita; Børvik, Tore (Peer reviewed; Journal article, 2023)Reinforced concrete is a material frequently used in protective structures and infrastructure exposed to extreme loading. In this study, the ballistic perforation resistance of 100 mm thick plain and reinforced concrete ... -
Projectile Impact on Plain and Reinforced Concrete Slabs
Gjesdal, Vetle Solheim; Jacobsen, Øystein Eirik Kvist (Master thesis, 2021) -
Quasi-static and dynamic indentation of offshore pipelines with and without multi-layer polymeric coating
Vestrum, Ole; Kristoffersen, Martin; Polanco-Loria, Mario; Ilstad, Håvar; Langseth, Magnus; Børvik, Tore (Journal article; Peer reviewed, 2018)Offshore pipelines are occasionally subjected to accidental impact loads from trawl gear or anchors, which may damage the pipe. In this study, a series of indentation experiments carried out on offshore steel pipes covered ... -
Solution for the Dynamic Elastically Compressible Power-Law Strain Hardening Cylindrical Cavity-Expansion Problem
Warren, Tom; Johnsen, Joakim; Kristoffersen, Martin; Børvik, Tore (Journal article; Peer reviewed, 2022) -
Submerged floating tunnels exposed to internal blast loading
Skaare, Nikolai Korvald (Master thesis, 2018)In June 2017, the Norwegian parliament approved the plan of developing the E39 as an improved and continuous Coastal Highway Route between Kristiansand and Trondheim. The goal is to eliminate all ferry connections along ... -
Submerged floating tunnels in concrete exposed to blast loading
Kristiansen, Eirik Aas (Master thesis, 2019)Denne oppgaven presenterer arbeidet utført med å undersøke hvor godt numeriske verktøy er i stand til å simulere oppførselen til betongrør utsatt for en indre eksplosjonslast. En neddykket rørbru har blitt foreslått som ... -
Transverse Deformation of Pressurised Pipes With Different Axial Loads
Kristoffersen, Martin; Børvik, Tore; Langseth, Magnus; Ilstad, Håvar; Levold, Erik (Chapter; Peer reviewed, 2017)Pipelines residing on the seabed are exposed to various hazards, one of them being denting, hooking and release of the pipeline by e.g. anchors or trawl gear. As a pipeline is displaced transversely in a hooking event, an ... -
Using unit cell simulations to investigate fracture due to compression-tension loading
Kristoffersen, Martin; Børvik, Tore; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2016)Experiments regarding impact against X65 steel pipes show that fracture typically arises in areas subjected to large compressive strains before tension. Fracture surfaces from these areas are brittle in character despite ... -
X65 steel pipes subjected to combined stretching and bending
Kristoffersen, Martin; Børvik, Tore; Langseth, Magnus; Hopperstad, Odd Sture (Chapter, 2015)Subsea pipelines are occasionally struck and hooked by objects such as anchors or trawl gear. The initial denting followed by a potential hooking and displacement of the pipeline, with a simultaneous increase in tensile ...