Wind Turbine Cross-Sectional Stiffness Analysis Using Internally Layered Solid Elements

Philippe Couturier, Steen Krenk

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An efficient finite element modeling approach is presented for analyzing the general cross-sectional stiffness properties and stress distribution of thin- and thick-walled sections with isotropic and general anisotropic materials. The procedure is based on discretizing the walls of the section using a single layer of displacement-based elements whereby the element's stiffness is obtained using Gaussian quadrature through each layer. The interlaminar stresses are recovered at points of interest via a three-dimensional equilibrium-based postprocessing scheme that uses the distribution of in-plane stress gradients derived in the local laminate coordinate system. The theory is illustrated by application to three composite sections of various shapes and material layups.
Original languageEnglish
JournalA I A A Journal
Issue number7
Pages (from-to)2149-2159
Publication statusPublished - 2016

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