(湘潭大学 土木工程与力学学院，湘潭 411105)
摘 要: 基于钨丝增强锆基块体非晶复合材料结构特点及均匀化方法，建立计算该复合材料等效弹性常数的理论模型；结合有限单元法对钨丝增强锆基块体非晶复合材料等效弹性常数进行数值计算；分析增强相的体积分数或尺寸对钨丝增强锆基块体非晶复合材料有效性能的影响。研究结果表明：将均匀化理论与有限元方法相结合能有效地预测具有周期性细观结构的块体非晶复合材料的有效弹性性能，为合理设计该类材料奠定基础。
关键字: 块体非晶复合材料；均匀化理论；有限元分析；增强相；弹性常数
（College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China）
Abstract:Based on the structural signature of tungsten-fiber reinforced Zr-based bulk metallic glass matrix composites (BMGMCs) and homogenization theory, a theoretical model for calculating their equivalent elastic constants was established. The equivalent elastic constants of these composites were predicted by the proposed model combined with the finite element analysis. The effects of the volume fraction and size of the reinforced phases on the effective properties of tungsten-fiber reinforced BMGMCs were further studied. The results demonstrate that a combined approach of the homogenization theory and the finite element formulation can effectively predict the elastic properties of tungsten-fiber reinforced BMGMCs with periodic meso-structure and thus, providing bases for the rational design of this kind of composite.
Key words: bulk metallic-glass matrix composite; homogenization theory; finite element analysis; reinforced phase; elastic constant
