铝蜂窝胞元结构参数对其宏观等效表征性能的影响  

Effects of Aluminum Honeycomb Cell Structural Parameters on Its Macro-equivalent Characteristic Properties

作　　者：刘叶花[1] 谢桂兰[1] 曹尉南[1] 汤亚男[1] 

机构地区：[1]湘潭大学机械工程学院,湖南湘潭411105

出　　处：《材料工程》2011年第11期29-34,共6页Journal of Materials Engineering

基　　金：国家自科基金资助项目(50875223);湖南省自科基金资助项目(11JJ9017);湘潭大学自科研究项目(09XZX17)

摘　　要：将均匀化理论与有限元方法相结合,建立了预测铝蜂窝宏观等效特征参数的细观力学模型,研究铝蜂窝胞元结构参数对其宏观等效表征性能的影响,并采用MATLAB语言编程,计算了不同高长比、不同厚长比及不同胞璧夹角的不规则正交各向异性蜂窝铝芯的等效弹性参数,得到了胞元结构参数对铝蜂窝宏观力学性能的影响规律,所得结果对蜂窝铝芯的结构设计及其在风力机叶片的工程应用中具有一定的指导意义。The micromechanical model for predicting the equivalent macroscopic characteristic parameters of aluminum honeycomb core is established based on homogenization theory combined with finite element method.The effects of the aluminum honeycomb cell structural parameters on its macroscopic equivalent characteristic properties are investigated.And by using MATLAB software,the equivalent elastic parameters of irregular orthotropic hexagonal aluminum honeycomb cores with various high-to-length ratio,thickness-to-length ratio and cell wall angle are calculated.The effects of cell structural parameters on its macroscopic equivalent mechanical properties are obtained.The results have guiding signification for the structure design of aluminum honeycomb core and its engineering application in wind turbine blades.

关 键 词：均匀化 蜂窝铝芯 结构参数 等效性能 

分 类 号：TB30[一般工业技术—材料科学与工程]