太原理工大学学报2017，Vol.48Issue(1)：128-132,5.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.01.021
基于 Delaunay 三角剖分的三维随机骨料混凝土模型研究
Study on Three-Dimensional Concrete Model with Random Aggregate Based on Delaunay Triangulation Algorithm
摘要
Abstract
This paper generates a three dimensional random aggregate model with the dual re‐lationship between Delaunay triangulation graph and Voronoi diagram .The Delaunay triangula‐tion algorithm in 2‐D is spread to 3‐D with programming language and ANSYS .In order to verify the effectiveness of the proposed model and analysis method ,the existing penetration experiments of concrete slabs are numerically simulated and analyzed by employing the hydrocode LS‐DYNA . Finally ,numerical simulation of the projectile penetration into the concrete slabs is presented to study the effect of the diameter of aggregate and the volume percentage on the yawing angle and residual velocity of the projectile .It is indicated that the ratio of aggregate average diameter to the projectile diameter has more obvious effects on yawing angle than volume percentage .When the ratio reaches a certain value ,the yawing angle is constant .In addition ,the residual velocity of projectile decreases with the increase of the diameter and volume percentage of aggregate .关键词
混凝土/随机骨料/侵彻/剩余速度/偏转角Key words
concrete/random aggregate/penetration/residual velocity/yawing angle分类
数理科学引用本文复制引用
张杰,王志华,树学峰..基于 Delaunay 三角剖分的三维随机骨料混凝土模型研究[J].太原理工大学学报,2017,48(1):128-132,5.基金项目
国家自然科学基金资助项目强动载荷下碳纤维增强复合夹芯结构的动力行为及其吸能机理研究（11390362），强冲击载荷下钢筋混凝土的本构关系、破坏机理与数值方法 （）
