摘要
运用均匀化理论与有限元相结合的方法,预测了风机叶片复合材料层合板的性能。将复合材料层合板内部结构分为宏观、细观和纳观3个层次,建立了复合材料层合板的多尺度模型。通过3次均匀化方法,并编写APDL程序输入商业软件ANSYS,预测材料各参数(碳纳米管体积分数、长径比、弹性模量,纳米薄层体积分数、弹性模量)对复合材料层合板性能的影响。结果表明,当分别增大碳纳米管体积分数、长径比、弹性模量以及纳米薄层体积分数、弹性模量时,风机叶片复合材料层合板的性能均能得到提高。同时表明加入一定量的碳纳米管可以适当提高复合材料层合板的性能。实验结果对风机叶片复合材料的制备有一定的指导作用。
The properties of wind turbine blade composite laminated plate were predicted by combining homogenization theory with finite element method.Internal structure of composite laminated plate can be divided into three （macroscopic,mesoscopic and nanoscopic） levels.A multi-scale model was established.A APDL program was written and input it into the commercial software ANSYS,the influence of various parameters （volume fraction of carbon nanotubes,the length to diameter ratio,elastic modulus,volume fraction of nanometer thin layer and the modulus of elasticity） on the performance of the composite materials was predicted through three homogenization.The results show that one of the volume fraction in carbon nanotubes,the length to diameter ratio,elastic modulus and volume fraction of nanometer thin layer and the modulus of elasticity increases,the property of the wind turbine blade composite laminated plate can be improved.A certain amount of carbon nanotubes was added in composite to improve the property.The results computed are useful for preparation of wind turbine blade composites.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第6期149-153,共5页
Materials Reports
基金
国家自然科学基金(51375417)
关键词
风机叶片
复合材料层合板
性能预测
碳纳米管
纳米薄层
均匀化理论
有限元
wind turbine blade
composite laminated plate
property prediction
CNTs composite
nanometer thin layer
homogenization theory
finite element method
