碳纳米管增强风机叶片复合材料多尺度模型及性能预测

复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (9): 21-25.

碳纳米管增强风机叶片复合材料多尺度模型及性能预测

谢桂兰^*, 郭锦, 曹尉南, 田杰

湘潭大学机械工程学院,湖南湘潭 411105

收稿日期:2013-03-11 出版日期:2013-12-28 发布日期:2022-03-22
作者简介:谢桂兰(1966-),女,博士,教授,主要从事复合材料力学性能的预测,xieguilan@xtu.edu.cn。
基金资助:
湖南省市联合基金(11jj9017)

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

XIE Gui-lan^*, GUO Jin, CAO Wei-nan, TIAN Jie

School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, China

Received:2013-03-11 Online:2013-12-28 Published:2022-03-22

摘要/Abstract

摘要： 将均匀化理论与有限元法相结合,应用于真空树脂转换成型风机叶片碳纳米管/碳纤维/环氧树脂复合材料的性能预测。根据实验分析,将碳纳米管/碳纤维/环氧树脂复合材料内部结构分别用宏观、细观和纳观三个层次来描述,建立了碳纳米管增强风机叶片复合材料的多尺度模型,编写了MATLAB 程序,并运用二次均匀化预测了材料参数(体积份数、长径比、弹性模量等)对碳纳米管/碳纤维/环氧树脂复合材料性能的影响。当分别增大碳纳米管弹性模量、长径比和体积份数时,碳纳米管/碳纤维/环氧树脂复合材料的性能均能得到提高。本文结果对风机叶片复合材料的制备有一定的指导作用。

关键词: 风机叶片, 碳纳米管复合材料, 等效性能, 均匀化, 有限元

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

中图分类号:

TB332

谢桂兰, 郭锦, 曹尉南, 田杰. 碳纳米管增强风机叶片复合材料多尺度模型及性能预测[J]. 复合材料科学与工程, 2013, 0(9): 21-25.

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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