Solutions Of Temperature Field Of Electric Objects With Defects By Method Of Green Function

This paper's research subject originates from the State Natural Sciences Foundation project—carbon fiber intelligence level many coupling mechanism and the field territory diagnosis (the project number: 10672128).The safety , reliability and durability of large concrete porject, including large dam,bridge,containment vessel of nuclear power station and etc., are momentous problems relating to national economic development and national safety.However,the problems of accumulation damages and catastrophic behavior of the in being larger concrete structures and national infrastructure become very prominent. Therefore, study on monitoring and analyzing the damage of momentous concrete structures is one of the important research subjects in civil engineering.This article take concrete structure's damage monitor and the analysis as the background, Through establishment carbon fiber concretes flaw body's electric heating theoretical model carries on the solution to the model interior temperature field, the research and the analysis with the green function method and drawn the corresponding conclusion, And revolved this question to carry on the related exploring theoretical analysis and the research.The main achievement and the innovation place of are as follows:(1) The heat conduction temperature anatomic model with internal heat source were established.(2) Obtained the Joule heat generation's analytic expression of electric heating object with ellipse flaw through analysis steady permanent electric field theory.(3) Adopting approximate processing, this paper presents an approximate method of obtaining the temperature field by Green's function, and gives the solution of electric heating object with ellipse flaw.(4) Through analytical study different material natural parameter(mainly is the electronic resistivity and the thermal conductivity ) and different flaw size which have had the influence to the temperature change , and drawn the corresponding conclusion, which has the guiding sense to the infrared detection .This article studies involves to mechanics, the electricity, the concretes material study, heat transfer theory and so on multi-disciplinary, its achievement to enhances the conventional concretes infrared non-destructive inspection the efficiency and the precision, promotes the infrared thermal imagery to have certain practical significance in the concrete structure non-destructive inspection application, moreover applies to the carbon fiber concretes in the essential construction structure, and realizes the damage real-time monitor to have the instruction function.)...