PROPERTY PREDICTION AND MULTI-SCALE MODEL OF WIND TURBINE BLADE COMPOSITES REINFORCED BY CARBON NANOTUBES

Abstract

Abstract: Homogenization theory combined with finite element method is applied to predict the properties of wind turbine blade composites composed of carbon nanotube/carbon fiber/epoxy resin by vacuum resin transfer molding. According to the experimental analysis, internal structure of carbon nanotube/carbon fiber/epoxy resin composite is described by three levels (macroscopic, mesoscopic and nanoscopic levels). The multi-scale models of wind turbine blade composite reinforced by CNTs are established. MATLAB program is written based on two-level homogenization methods to predict the effect of the material parameters (volume fraction, aspect ratio, elastic modulus) on the properties of CNTs/CF/EP composites. The effective property increases as the elastic modulus, aspect ratio and volume fraction of CNTs increases, respectively. The conclusions have some significance for guiding preparation of wind turbine blade composites.

Key words: wind turbine blade, CNTs composite, effective properties, homogenization, finite element

CLC Number:

TB332

XIE Gui-lan, GUO Jin, CAO Wei-nan, TIAN Jie. PROPERTY PREDICTION AND MULTI-SCALE MODEL OF WIND TURBINE BLADE COMPOSITES REINFORCED BY CARBON NANOTUBES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(9): 21-25.

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