The truss model of unit cell is developed based on non-continuum mechanics,and finite element method is utilized to predict the effective elastic modulus of composites.

• 基于非连续介质力学方法建立桁架结构单胞模型,采用有限元法预估复合材料的有效弹性模量,以材料质量最轻和刚度要求为目标,选用遗传算法优化细观结构参数。