原位生长碳纳米管增强复合材料风机叶片性能预测  

Prediction of Properties for Wind Turbine Blade Composites Reinforced by In-Situ CNTs Growth

作　　者：谢桂兰[1] 吴涛[1] 赵锦枭 曹尉南[1] 

机构地区：[1]湘潭大学机械工程学院,湖南湘潭411105

出　　处：《材料科学与工程学报》2014年第1期89-92,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51375417)

摘　　要：本文采用均匀化理论,结合有限元方法,预测了碳纤维表面原位生长碳纳米管增强复合材料风机叶片的等效性能。根据实验分析,将碳纳米管/碳纤维增强复合材料风机叶片内部结构分别用宏观、细观和纳观三个层次来描述。利用APDL编写的均匀化计算程序,分析了碳纳米管的长度、直径以及弹性模量对复合材料等效性能的影响。计算结果表明,随着碳纳米管长度的增加,复合材料的等效性能增加;当长度一定时,增加碳纳米管的直径和弹性模量,也能提高复合材料的性能。本文结果对复合材料风机叶片的制备有一定的指导作用。Based on the homogenization theory combined with the finite element method,the effective properties of wind turbine blade composites reinforced by carbon fibers with in situ aligned CNTs growth were estimated.According to the experimental analysis,the internal structure of the CNTs/carbon fiber reinforced wind turbine blade composites was described at three levels(macroscopic,microscopic and nanoscopic structure).The effects of the length,the diameter and the elastic modulus of the CNTs on the effective properties of the composite were analyzed by using calculation program written by APDL.It has been found that the effective properties of the composite increase with the increase of the length of CNTs.While the length is fixed,the increases in diameter and elastic modulus of CNTs can also improve the properties of the composite.The results have some guidance for preparation of wind turbine blade composites.

关 键 词：复合材料风机叶片 等效性能 碳纳米管 碳纤维 均匀化方法 

分 类 号：TB33[一般工业技术—材料科学与工程]