Blar i UiS Brage på forfatter "Rege, Kristen"
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Design of loading devices for mixed-mode fatigue crack propagation testing
Rydland, Jonas Olsvik (Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)Traditional fatigue crack propagation tests are performed in mode I, i.e. with a cyclic load applied perpendicularly to the initial crack. However, fatigue cracks in real components are often subjected to mixed-mode loading. ... -
Load sequence effects and mixed-mode fatigue crack growth in offshore structures
Rege, Kristen (PhD thesis UiS;, Doctoral thesis, 2019-12)An increasing number of the offshore structures in the North Sea are being operated in a life extension phase, which means that their original design life has been exceeded. As the structures age, they are deteriorating, ... -
Mixed-mode I and II fatigue crack growth retardation due to overload: An experimental study
Rege, Kristen; Grønsund, Jørgen; Pavlou, Dimitrios (Peer reviewed; Journal article, 2019-12)Environmental loads acting on structures usually cause fatigue crack propagation under variable amplitude mixed-mode conditions. In order to better estimate the remaining fatigue life, the fatigue crack growth behaviour ... -
Practical comparison of crack meshing in ANSYS mechanical APDL 19.2
Bjørheim, Fredrik (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)Structures under cyclic loading are typically subjected to formation of cracks, and thereafter crack propagation. To be able to analyse the crack propagation numerically with the goal of estimating a structure or a structural ... -
Water Hammer Induced Vibration of Steel Pipelines Repaired with FRP Composites
Rege, Kristen (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-14)Since the 1990s, there has been an increasing trend to repair corroded or eroded pipelines, conveying oil, gas or water, by using fibre-reinforced polymer (FRP) composites. This relatively new repair technique involves ...