Progressive Damage Simulation of Laminates in Wind Turbine Blades under Quasistatic and Cyclic Loading.

Publikation: Bog/antologi/afhandling/rapportPh.d.-afhandling

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Abstrakt

The overall purpose of this Ph.D. project has been to develop a framework of methods for progressive delamination modeling and simulation of composite laminates in large scale structures under both quasi-static and fatigue loading.
The first part of the thesis is an introduction to the project and provides a short introduction to selected basic topics of the theoretical background of the work presented in the papers.
The second part of the thesis consists of three refereed journal papers.
Paper A is concerned with computational efficiency and the ability to converge to a solution for large cohesive elements applied in delamination analyses.
Paper B presents a review of the available experimental observations, the phenomenological models and the computational simulation methods for the three phases of fatigue-driven delamination (initiation, onset and propagation).
Paper C presents a new method for simulating fatigue-driven delamination under general mixed mode conditions. The experimental crack growth rate can be reproduced in finite element analyses with practically no error for any given structure and load.
OriginalsprogEngelsk
ForlagAalborg Universitetsforlag
Antal sider186
ISBN (Elektronisk)978-87-7112-266-4
DOI
StatusUdgivet - 2015
NavnPh.d.-serien for Det Teknisk-Naturvidenskabelige Fakultet, Aalborg Universitet
ISSN2246-1248

Bibliografisk note

Erik Lund, Hovedvejleder
Esben Lindgaard, Bivejleder,
Christian Frier Hvejsel, Bivejleder,
Albert Turon, Bivejleder,
Bent F. Sørensen, Bivejleder

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