Browsing UiS Brage by Author "Bjørheim, Fredrik"
Now showing items 1-18 of 18
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Assessment of Mechanical Properties of 17-4 PH Stainless Steel Printed By Bound Metal Deposition (BMD)
Harbo, Sander (Bachelor thesis, 2024)Additive manufacturing (AM) is a modern technology that can produce parts from a 3D model by iteratively building the part layer by layer. Some of the benefits of using AM are reduced delivery times, storage needs, and ... -
Fatigue of Structural and Additively Manufactured Steels: Damage Assessment and Modelling Techniques
Bjørheim, Fredrik (PhD thesis UiS;, Doctoral thesis, 2022-09)The topics of damage assessment by in situ measurements before a macroscopic crack has been initiated, nonlinear damage modelling and additive manufacturing are herein discussed and researched from the perspective of the ... -
Finite Element Analysis and Fatigue Damage Assessment of a Railway Bridge Subjected to Variable Amplitude Loading
Hope, Maja Mydland (Bachelor thesis, 2023)Many of the railway bridges in Norway and the rest of the world are closing in on the end of their predicted service life, and the need for more precise fatigue life assessments and predictions is challenging for the railway ... -
Integrity Assessment of Mechanical Properties and Microstructure in Aging Railway Bridge in Norway
Moi, Per Kristian (Master thesis, 2023)There is a lack of documentation about the material in century-old railway bridges in Norway, with many of which are still in operation, approaching what is conventionally deemed as their design working life. Along with ... -
Kritiske faktorer ved valg av løsninger i et byggeprosjekt med totalentreprise
Hoff, Magnus (Master thesis, 2022)Valg av løsninger vil være en sentral del av alle byggeprosjekter og ut ifra hvilken entrepriseform som velges vil påvirkningsgraden være av varierende art for de involverte partene. I denne oppgaven er det valgt å fokusere ... -
Material characteristics of 3-D printed steel
La Torraca, Isabel (Master thesis, 2021)Additive manufacturing of metals is a technology where metal parts are built layer by layer from a 3D model. To do this a heat source is used to melt metal powder or metal rods. There is a large selection of processes that ... -
Metoder brukt for å forhindre svart økonomi og arbeidslivskriminalitet i offentlige anskaffelser innen bygg og anlegg i Finland, Sverige og Norge
Koivisto, Eric (Bachelor thesis, 2022)Finland Sweden and Norway lose out on a lot of potential tax money due to the shadow economy in the construction industry. Workers employed within companies such as these work with bad working conditions and lose the right ... -
Nonlinear fatigue life prediction model based on the theory of the S-N fatigue damage envelope
Bjørheim, Fredrik; Pavlou, Dimitrios; Siriwardane, Sudath C. (Peer reviewed; Journal article, 2022)A nonlinear model is proposed in light of the theory of isodamage curves, to assess the cumulative fatigue damage under multistage loading. The isodamage curves were developed through the theory of the S-N fatigue damage ... -
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 ... -
Reuse of decommissioned offshore steel components for new buildings: A case study
Valen, Lars Vegar; Siriwardane, Sudath C.; Bjørheim, Fredrik; Røland, S. (Peer reviewed; Journal article, 2023)Reuse process of structural steel members, which are extracted from decommissioned offshore platform, for new apartment building is presented in this paper. An index is introduced to assess the technical feasibility of the ... -
Reuse of structural steel components from decommissioned offshore structures
Valen, Lars Vegar Stenehjem (Master thesis, 2023)This thesis presents the theoretical foundation for reusing steel from decommissioned offshore structures in onshore construction projects as a green alternative to new production steel. This would open up a new source of ... -
A review of fatigue damage detection and measurement techniques
Bjørheim, Fredrik; Siriwardane, Sudath C.; Pavlou, Dimitrios (Peer reviewed; Journal article, 2021-09)A vast amount of research has been carried out towards the goal of quantifying changes related to the fatigue damaging process in materials throughout the fatigue life. However, no recommended practice has been developed ... -
Sammenlikning av knutepunktsgeometri på en offshore fiskefarm
Bjoland, Marie Heng (Bachelor thesis, 2023)This thesis was written in collaboration with Global Maritime (GM), and its aim is to compare two geometrically different structural joints on an offshore fish farm, named GM Aqua Design. The two models are compared on ... -
Selvbærende scenekonstruksjon med praktiske og estetiske utfordringer.
Harboe, Torgeir (Bachelor thesis, 2021)Rosenberggata 76 i Stavanger er en eiendom med en eventyrlig hage, og mye historie. I det sørøstlige hjørnet av hagen er det bygget et hobbithus som delvis ligger under terrenget. Over hobbithuset var det bygget en utvendig ... -
Structural performance of a Railway Truss Bridge Design, Fabrication, Fem and Model Testing
Rose, Medhanie Kifle; Weldu, Wolday; Ghebretinsae, Fithawi (Bachelor thesis, 2023)This thesis focuses on the design, fabrication, and analysis of an aluminum truss bridge. The bridge was designed using theoretical and numerical methods, and then physically fabricated for experimental testing. The results ... -
A Survey Dataset Evaluating Perceptions of Civil Engineering Students about Building Information Modelling (BIM)
Barbieri, Diego Maria; Lou, Baowen; Passavanti, Marco; Barbieri, Aurora; Bjørheim, Fredrik (Peer reviewed; Journal article, 2023)The implementation of Building Information Modelling (BIM) technologies has become increasingly central in the design, construction and maintenance of both civil structures and infrastructures. As more and more software ... -
Tension testing of additively manufactured specimens of 17-4 PH processed by Bound Metal Deposition
Bjørheim, Fredrik; La Torraca Lopez, Isabel Mercedes (Peer reviewed; Journal article, 2021)In contrast to the traditional ways of subtractive manufacturing, additive manufacturing (AM), also known as 3D printing, adapts computer-aided design to iteratively build the component or part layer by layer. The technology ... -
Valg av entreprisemodell og dets påvirkning på byggeprosessen
Lien, Snorre Steen (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2019)Choice of contract forms is a key decision in all building projects. This choice determines how the entire construction process will be. Different actors prefer different models, but the largest contractors in the country ...