摘要
石粒几何形状模拟是模拟混凝土复杂结构的先决条件,接近现实的混凝土细观结构为在混凝土科学中利用当代先进计算方法开辟了前景。为深入研究混凝土细观结构,利用AUTOCAD内置的VBA语言自动生成混凝土天然骨料模型,且提出一种新的、更为简单的、适用于所有形状的骨料干涉判断方法交汇法。模拟结果表明:利用AU-TOCAD建立混凝土骨料模型,程序通俗易懂、方法简单,模型直观且精确性高;并通过AUTOCAD与其他软件之间进行CAD数据交换的交互文件SAT,可导入多种有限元软件进行分析,对混凝土的宏观、细观力学性质做进一步的数值研究。
The simulation of stone geometry is the precondition of modeling the complex structure of the concrete.The meso-structure of concrete now is so close to reality that it pioneers the prospect for the concrete science using the contemporary calculation method.In order to study the meso-structure of concrete deeply,a new methodintersection method,which is much simpler and can be used to check interference for aggregate of any shape,is presented by using the VBA language which is set in AUTOCAD.The results show that the model of concrete aggregate by AUTOCAD is brief and simple,which is also intuitive and accurate.It can be analyzed through introducing into finite element software for the further numerical study of macro and micro mechanical properties of concrete by using the mutual files SAT which is used to exchange the CAD data between AUTOCAD and other software tools.
出处
《中国农村水利水电》
北大核心
2011年第3期73-75,共3页
China Rural Water and Hydropower
基金
"十一五"科技支撑计划"灌区输水技术研究与产品开发"(2006BAD22B03)
