摘要
本文根据应变能等效原理,利用有限元分析方法,处理了单层平面织物复合材料弹性性质的细观力学估算问题.建立了平面织物增强树脂的单方向波纹模型,对于织物的结构,组分性质与复合材料的宏观性能的关系作了系统处理.给出了一组较完整的平面织物复合材料单层弹性常数的估算结果,数值予告与实验结果比较,表明文中所提出的方法是有效的,并且可以进一步用它来考虑更为完善的平面织物复合材料二维波纹模型的分析.
This paper deals with the problem of the micromechanics analysis of the elastic constants of a single-ply plain weave composite using the strain energy equivalency principle with the aid of the finite element method. By assuming undulation in one direction only the plain weave composite is modeled. A. systematic treatment of the relationship between the semi-micromechanical aspects of the woven fabric structure and the micromechanical properties of the fabric composite is presented. The numerical estimation of the various elas(?)ic constants of a single-ply plain weave composite is given. A comparison of the resulting numerical prediction with experimental results shows that the method is valid and suggests that it should be extended to the case of a two-directional undulation model.
出处
《应用力学学报》
CAS
CSCD
北大核心
1989年第4期20-27,114,共8页
Chinese Journal of Applied Mechanics
关键词
复合材料
平面织物
性能
有限元法
Plain weave composite
elastic constant
undulation
strain energy
finite element method
