混凝土二维随机骨料模型的改进

摘要

With the requirement of simulation accuracy increasing, the method of generating uniform interface layer by managing ellipse aggregate and arbitrary polygon aggregate based on improved aggregate distribution function derived by Walraven formula is presented. It solves the problems existing in the control of particle size distribution in random aggregate structure and the links of bonding interface layer generating, and effectively improved the simulation level of random aggregate mold, provided a aggregate mold of more logical and higher quality for the research of mesoscopic numerical simulation of concrete.%在越来越高的模拟精度要求下，针对随机骨料结构中粒径分布控制和黏结界面层生成环节中存在的问题，基于Walraven公式推导出改进的骨料分布函数，就椭圆形骨料和任意凸多边形骨料提出生成均匀界面层的方法，有效提高随机骨料模型的仿真程度，为混凝土细观数值模拟研究提供更优质、更合理的骨料模型。