Shape determination of 3-D reinforcement corrosion in concrete based on observed temperature on concrete surface

摘要: We present the shape determination method of 3-D reinforcement corrosion based on observed temperature concrete surface. The non-destructive testing for in using a heat image surface have been proposed by Oshita. position or cavity can be found that method. However, size those defects not precisely measured image. therefore numerical system adjoint variable is introduced to formulate problem, and finite element employed simulate transfer problem. Some experiments examination number observation points are shown this paper.