THE STATISTICALLY SECOND-ORDER TWO-SCALE METHOD FOR PREDICTING THE MECHANICAL PERFORMANCE OF COMPOSITES WITH INCONSISTENT RANDOM DISTRIBUTION

摘要：

A class of composites is called as the composite materials with inconsistentlyrandom distribution if their random distribution characteristics are variable, for example,functional gradient material. A new statistically second-order two-scale method is developedfor predicting the mechanical parameters of composite materials with inconsistently randomdistribution, including stiffness and elastic limit strength. In this paper, themicro-configuration of the consistently/inconsistently random composites is represented. Thestatistically second-order two-scale analysis formulation is briefly shown. And then thecomputation for the stiffness and strength of inconsistently random composites is discussed,and the procedure of the statistically second-order two-scale computation is stated. Finally,the numerical results for stiffness and elastic limit strength of composites with inconsistentlyrandom distribution are shown.

关键词： Inconsistently random distribution Composite materials Finite element modeling (FEM) Statistically second-order tow-scale method

作者: Fei Han Junzhi Cui Yah Yu

作者单位: Department of Applied Mathematics,Northwestern Polytechnical University,Xian,710072 China Academy of Mathematics and System Sciences,Chinese Academy of Sciences,Beijing,100080 China Department of Applied Mathematics,Northwestern Polytechnical University,Xian,710072,China

会议类型: 国际会议

会议名称: 1st International Conference on Microstructure Related Durability of Cementitious Composites(首届与水泥基复合材料耐久性相关的微观结构国际会议)

会议地点: 南京

会议语种:英文

页码: 1053-1062

在线出版日期: 2008-10-13（万方平台首次上网日期，不代表论文的发表时间）