Browsing NTNU Open by Author "Vedvik, Nils-Petter"
Now showing items 1-7 of 7
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Composite Ship Propellers
Rokvam, Sondre Østli (Doctoral theses at NTNU;2024:22, Doctoral thesis, 2024)Ship propellers can be designed using composite (fibre-reinforced plastic) materials to achieve bending-induced twist deformation leading to automatic pitch adjustment in the blades during operation. Composite tailoring ... -
A computational iterative design method for bend-twist deformation in composite ship propeller blades for thrusters
Rokvam, Sondre Østli; Vedvik, Nils-Petter; Mark, Lukas; Rømcke, Eivind; Ølnes, Jon; Savio, Luca; Echtermeyer, Andreas Thorsten (Peer reviewed; Journal article, 2023)This study investigates the feasibility of utilising common composite material layup techniques in ship propeller blade design to achieve an automatic pitch adjustment through bending-induced twist deformation. A comprehensive ... -
Cure Modeling of Large Casted Thermoset Polymer Parts
Heinze, Søren (Doctoral theses at NTNU;2018:407, Doctoral thesis, 2018) -
Designing Composite Adaptive Propeller Blades with Passive Bend–Twist Deformation for Periodic-Load Variations Using Multiple Design Concepts
Rokvam, Sondre Østli; Vedvik, Nils-Petter; Savio, Luca; Echtermeyer, Andreas Thorsten (Peer reviewed; Journal article, 2023)Four plausible design concepts are applied together to investigate composite bend–twist propeller-blade designs that show high twisting per bending deflection. The design concepts are first explained on a simplified blade ... -
Environmental Aging of Constituent Materials in Fiber-Reinforced Polymer Composites
Krauklis, Andrejs (Doctoral theses at NTNU;2019:215, Doctoral thesis, 2019)Fiber-reinforced polymer (FRP) composites have seen a rapid rise in use in the past 50 years due to their high strength, stiffness, relatively light weight and relatively high corrosion resistance, especially when compared ... -
Environmental Effects on Fiber Reinforced Polymer Composites Fluid and Temperature Effects on Mechanical Performance
Gagani, Abedin (Doctoral theses at NTNU;2019:120, Doctoral thesis, 2019)In several applications, like offshore, marine, wind energy and aerospace industry, fiber reinforced polymer composites are exposed to mechanical loads and environmental effects: fluid exposure and high temperature. The ... -
Progressive Fatigue Modelling of Open-Hole Glass-Fibre Epoxy Laminates
Maneval, Victor; Vedvik, Nils-Petter; Echtermeyer, Andreas Thorsten (Peer reviewed; Journal article, 2023)The failure of composite laminates under cyclic fatigue loads is complex, as multiple failure mechanisms are in play at different scales and interact with each other. Predicting the remaining fatigue life as well as the ...