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Power and Energy Engineering Conference (PEEC 2010 E-BOOK)

Wuhan,China,9.11-9.13，2010

ISBN: 978-1-935068-17-4 Scientific Research Publishing, USA

E-Book 846pp Pub. Date: October 2010

Category: Engineering

Price: $80

Title: Fatigue Damage Mechanism Analysis on Multi-MW Wind Turbine Blade
Source: Power and Energy Engineering Conference (PEEC 2010 E-BOOK) (pp 108-110)
Author(s): Xiaohui Dong, Yancheng Institute of Technology, Yancheng, China
Shucong Zhen, Yancheng Institute of Technology, Yancheng, China
Wei Feng, Yancheng Institute of Technology, Yancheng, China
Abstract: According to the actual ply scheme of multi-MW wind turbine blade, using Talerja’s vector damage model，fatigue damage vector model of matrix and interface were derived, and the fatigue damage mechanism was analyzed. The constitutive relations for the plane stress problems of composite uni-ply plates with damage to wind turbine blade were obtained. The results show that the crack of perpendicular to the fiber direction does not affect the material properties, while the crack of parallel to the fiber direction will become the transversely isotropic performance of materials to the orthotropic anisotropic performance of material.
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