Chortis | Structural Analysis of Composite Wind Turbine Blades | E-Book | sack.de
E-Book

E-Book, Englisch, Band 1, 235 Seiten, eBook

Reihe: Research Topics in Wind Energy

Chortis Structural Analysis of Composite Wind Turbine Blades

Nonlinear Mechanics and Finite Element Models with Material Damping
1. Auflage 2013
ISBN: 978-3-319-00864-6
Verlag: Springer International Publishing
Format: PDF
 Kopierschutz: 1 - PDF Watermark

Nonlinear Mechanics and Finite Element Models with Material Damping

E-Book, Englisch, Band 1, 235 Seiten, eBook

Reihe: Research Topics in Wind Energy

ISBN: 978-3-319-00864-6
Verlag: Springer International Publishing
Format: PDF
 Kopierschutz: 1 - PDF Watermark

This book concerns the development of novel finite elements for the structural analysis of composite beams and blades. The introduction of material damping is also an important aspect of composite structures and it is presented here in terms of their static and dynamic behavior. The book thoroughly presents a new shear beam finite element, which entails new blade section mechanics, capable of predicting structural blade coupling due to composite coupling and/or internal section geometry. Theoretical background is further expanded towards the inclusion of nonlinear structural blade models and damping mechanics for composite structures. The models effectively include geometrically nonlinear terms due to large displacements and rotations, improve the modeling accuracy of very large flexible blades, and enable the modeling of rotational stiffening and buckling, as well as, nonlinear structural coupling. Validation simulations on specimen level study the geometric nonlinearities effect on the modal frequencies and damping values of composite strips of various angle-ply laminations under either tensile or buckling loading. A series of correlation cases between numerical predictions and experimental measurements give credence to the developed nonlinear beam finite element models and underline the essential role of new nonlinear damping and stiffness terms.
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Zielgruppe

Research

Autoren/Hrsg.

Chortis, Dimitris I

Weitere Infos & Material

From the Contents: Historical Review on the Linear and Nonlinear Damped Structural Behavior of Composite Structures.- Linear Material Coupling Effect on Structural Damping of Composite Beams and Blades.- Nonlinear Damping Mechanics and Finite Element Model for the Static and Damped Free-Vibration Analysis of Composite Strips.- Nonlinear Dynamic Response of Composite Plate-Beams.- Prediction of Nonlinear Damped Response of Large-Scale Blade Composite Structures.

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