A Novel Electrical Resistance Tomography System of Carbon Fiber Smart Layer for Structural Health Monitoring
Based on the function character and conductivity of carbon fiber smart layer(CFSL), A novel electrical resistance tomography (ERT) system of CFSL had been developed for whole field structural health monitoring (SUM). The apposite Tikhonov regularization principle and modified Newton-Raphson (MNR) algorithm were adopted to solve the ERT inverse problem. Its effectiveness was evaluated using virtual experimental. The resistivity distribution image of CFSL sensor had been obtained from the ERT system, which data came form the virtual experimental. The result showed that the electrical resistivity of CFSL sensor increases under tension. Its high-resistivity area was distributed in the high stress/strain area of the structure. Its resistivity distribution indicated structural stress/strain condition. It is feasibility to whole field SHM using the function character of smart layer and ERT technology.
electrical resistance tomography carbon fiber smart layer Image Reconstruction structural health monitoring
Xiaoyu Zhang Zhuoqiu Li Sirong Zhu
Department of Engineering Structure and Mechanics,School of Science,Wuhan University of Technology,Wuhan,China
国际会议
上海
英文
2661-2664
2009-11-20（万方平台首次上网日期，不代表论文的发表时间）