粉煤灰综合利用 FLY ASH COMPREHENSIVE UTILIZATION 2012NO.1 题研究 混凝土粗骨料三维轮廓数值模拟 Numerical Simulation of Three-Dimensional Contour of Coarse Aggregate in Conerete 徐俊，王中平2 (1.同济大学材料科学与工程学院，上海，201804； 2.同济大学先进土木工程材料教育部重点实验室，上海201804) 摘要：提出了一种新的混凝土粗骨料三维轮廓数值模拟方法.把骨料看成是由上下两部分组成的，然后在两个平 面上分别生成散乱点集并将它剖分成两个三角网，建立了”随机母线赋值法”对散乱点Z坐标进行赋值，实现平面 三角网向三维空间的拉伸过程，形成混凝土粗骨料上下表面三维轮廓，最后将它们拼接起来生成混凝土粗骨料三维轮 廓，并运用Matlab软件实现其可视化过程.初步模拟结果表明，这种算法随机性好，模拟的骨料与真实骨料相似度较 高. 关键词：粗骨料；数值模拟；拉伸；拼接；随机母线赋值 中图分类号：TU528.041 文献标识码：A 文章编号：1005-8249(2012)01-0019-05 XU Jun' WANG Zhong-ping!.2 (1.Faculty of Materials Science and Engineering Tongji University Shanghai 201804 China; 2.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education Tongji University shanghai 201804 China) Abstract:This paper puts forward a new numerical simulation method of three-dimensional contour of course aggregate in concrete.Aggregate is taken as a whole corsisting of upper and lower parts then scattered point set which is generated in two planes respectively is splited into two flat triangulars.In order to tensile this flat triangular in Three-dimensional space random generatrix assignment method"is established to anaign Z coordinate to...
混凝土粗骨料三维轮廓数值模拟.pdf
