钢筋混凝土结构的微波有限元模型研究  

Study of Finite Element Method for Steel Bar Concrete Model in Microwave Field

作　　者：刘海艳[1] 许会[2] 

机构地区：[1]沈阳理工大学信息科学与工程学院,辽宁沈阳110168 [2]沈阳工业大学

出　　处：《沈阳理工大学学报》2009年第2期71-74,89,共5页Journal of Shenyang Ligong University

摘　　要：为研究钢筋混凝土结构微波无损检测正问题的求解,对钢筋混凝土块进行数学建模,采用有限元方法对该模型进行网格剖分、强加边界条件等处理,求解场的法方程式,得到剖分网格各节点处的场强值,据此绘制反映钢筋位置的场强-位置关系曲线,比较利用现有软件和自行编制程序的计算结果,验证了该方法的正确性,为微波无损检测问题的有限元分析提供技术支持.To research the direct problem solution of reinforced concrete structure using microwave nondestructive testing method, mathematical modeling for the concrete bar is needed. Meshing and adding forced boundary conditions to the model with Finite Element Methods are performed. The field strength value of the subdivision mesh nodes can be obtained by solving normal equation of the electromagnetic field. And the curve of steel bar location relative to the field strength can be drawn according to what it draws. We compare the calculation results produced from existing software and our software to verify the correctness of this method. So the technical support for finite element analysis of microwave nondestructive testing is provided.

关 键 词：微波 有限元方法 边界条件 法方程 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]