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Evaluation of Material Properties about CFRP Composite Adapted for Wind Power Blade by using DIC Method  

Kang, J.W. (부경대학교 방재연구소)
Kwon, O.H. (부경대학교 안전공학부)
Kim, T.K. (부경대학교 대학원)
Cho, S.J. (부경대학교 안전공학부)
Publication Information
Journal of Power System Engineering / v.14, no.5, 2010 , pp. 17-23 More about this Journal
Abstract
In recent, the capacity of a commercial wind power has reached the range of 6 MW, with large plants being built world-wide on land and offshore. The rotor blades and the nacelle are exposed to external loads. Wind power system concepts are reviewed, and loadings by wind and gravity as important factors for the mechanical performance of the materials are considered. So, the mechanical properties of fiber composite materials are discussed. Plain woven fabrics Carbon Fiber Reinforced Plastics (CFRP) are advanced materials which combine the characteristics of the light weight, high stiffness, strength and chemical stability. However, Plain woven CFRP composite have a lot of problems, especially delamination, compared with common materials. Therefore, the aim of this work is to estimate the mechanical properties using the tensile specimen and to evaluate strain using the CNF specimen on plain woven CFRP composites. For the strain, we tried to apply to plain woven CFRP using Digital Image Correlation (DIC) method and strain gauge. DIC method can evaluate a strain change so it can predict a location of fracture.
Keywords
Wind Power; Blade; CFRP; Mechanical Properties; DIC; 4-Point Bending; Strain Contour;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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