三维颗粒增强复合材料细观温度场计算

将高阶理论推广到三维情况,采用界面平均温度代替温度函数中待定系数作为未知量,并取消了亚子胞的概念,减少了求解方程数量,有效地提高了计算效率.在单胞的热分析过程中,利用热流与平均温度之间的关系建立子胞热传导方程,进行温度场求解,并与有限元法计算结果进行了比较,验证了该方法的正确性和有效性. 

Temperature fields calculation of 3-D particle reinforced composite

The Higher-order theoty was developed to three-dimension, coefficients of temperature function were replaced by surface-averaged temperature to be primary variables of equations, and the concept of sub-cells was canceled. The number of equations was reduced so that computational efficiency was increased effectively. During the thermal analysis of represent volume element, heat exchange quations which established the relationship of hear flux and average temperature were used to compute temperature, The comparison of numerical results with finite element analysis demonstrated the correctively and validity.