Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/DC41BD43-8A72-4F40-9593-F34455303DED | ||
| Year | 2024 | ||
| Type of Item | Master Thesis | ||
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| Bibliographic Citation | Σωτήριος Πετσινίκης, "Προσομοίωση σύνθετων πολύφυλλων κατασκευών με την μέθοδο των πεπερασμένων στοιχείων", Μεταπτυχιακή Διατριβή, Σχολή Μηχανικών Παραγωγής και Διοίκησης, Πολυτεχνείο Κρήτης, Χανιά, Ελλάς, 2024 https://doi.org/10.26233/heallink.tuc.103973 | ||
| Appears in Collections |
This study aims to simulate and analyze the mechanical behavior of multilayeredcomposite structures using the Finite Element Method (FEM). Special emphasis isplaced on investigating the mechanical response of the composite materials that form the blade shell, under the application of static loads at different regions of itsstructure. Understanding the mechanical behavior of the blade is of particularimportance for the operational reliability of the wind turbine. The blade constitutes a key structural component of the system, as it transforms wind energy into mechanical and subsequently into electrical energy.To achieve the objectives of this study, an OML-type blade shell model wasdeveloped, in which the composite materials and static load application conditionswere defined. The three-dimensional geometric representation of the blade shell was created using Computer-Aided Design (CAD) software, providing an accurategeometric model. Subsequently, the analysis of the mechanical response under static loading—applied both to the surface and the trailing edge of the blade—was carried out using the COMSOL Multiphysics 6.0 finite element software.The evaluation of the results was based on the distribution of Von Mises stresses,which allows for the identification of stress concentration regions and potentialmaterial fatigue. The analysis results demonstrate a general similarity in themechanical response of the blade under different loading conditions. However, thestress distribution on the blade surface varies significantly depending on the fiberorientation. Therefore, the selection of composite materials and the orientation of their fibers is a critical factor in optimizing the mechanical performance of the blade—and, by extension, the operation of the wind turbine.
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