Print Email Facebook Twitter An application of a phenomenological triple mechanism driven direct cyclic fatigue analysis in composites Title An application of a phenomenological triple mechanism driven direct cyclic fatigue analysis in composites: Composite fatigue failure in GFRP CT specimen Author Verhoeven, Alexander (TU Delft Civil Engineering and Geosciences) Contributor Pavlovic, M. (mentor) van der Meer, F.P. (graduation committee) Feng, W. (graduation committee) Degree granting institution Delft University of Technology Programme Civil Engineering | Structural Engineering Project Wrapped composite joints in off-shore jacket structures Date 2020-10-26 Abstract In off-shore structures, the jacket foundations are mainly welded connections in circular hollow sections. These connections exhibit problems in resisting fatigue load. Wrapped composite joints tackle this problem with improved fatigue resistance. However, the material properties are yet unknown. In order to determine the properties on a more fundamental manner chosen than just testing different layups for different scaled experiments. This fundamental manner follows the procedure of identifying the mechanisms and their effect on the composite material. The main effect that will be considered of each mechanism is the stiffness degradation over time in order to determine the fatigue life. For now, the effects of the three (most) significant mechanisms are modelled for a glass fibre reinforced composite layup of a compact tension specimen. These effects are modelled using the plasticity model for inter fibre failure, the virtual crack closure technique for delamination and the ductile damage model for fibre failure. Subject CompositefatigueGFRPCT specimentriple mechanismdirect cyclic To reference this document use: http://resolver.tudelft.nl/uuid:98e40dbf-0717-45bb-8e91-499897202f90 Part of collection Student theses Document type master thesis Rights © 2020 Alexander Verhoeven Files PDF 2020_10_29_Master_Thesis_ ... osites.pdf 32.51 MB Close viewer /islandora/object/uuid:98e40dbf-0717-45bb-8e91-499897202f90/datastream/OBJ/view