摘要
本文介绍一种预测四步法三维编织复合材料弹性性能的方法提出了一种细观力学分析模型，并根据应变能等效原理，采用有限单元法作了分析复合材料的弹性模量和泊松比被表达为纤维和基体的弹性性能、纤维体积比、编织角等的函数对理论计算值和实验数据作了比较图４，表１。
A methodology for predicting the elastic properties of the 4-step three-dimensional
braid composite was described. A micromechanics model of the composite was proposed and
analyzed by using the strain energy equivalency principle with the aid of the finite element
method. Expressions for elastic module and Poisson's ratios have been derived as functions of
variables such as elastic properties of fiber and matrix ,fiber volume fractions , angle of braided
yarn to braid axis .Comparisons between theoretical predictions and experimental data were
also presented. 4figs,. 1tab,. 8refs.
出处
《湘潭矿业学院学报》
1999年第1期58-61,共4页
Journal of Xiangtan Mining Institute
基金
国家自然科学基金
关键词
复合材料
三维编织
细观力学
弹性模量
有限元
composite, three-dimensional
braid,micromechanics,elastic modulus, finite element
