Lamb waves topological imaging combining with Green’s function retrieval theory to detect near filed defects in isotropic plates
Zhang Hui1, Zhang Hai-Yan1, †, Xu Meng-Yun1, Fan Guo-Peng1, Zhu Wen-Fa1, Chai Xiao-Dong2
       

Topological image of the aluminum plate B: (a) using the directly captured full matrix; (b) using the reconstructed full matrix; (c) profile curve of panel (a) along the center of the defects; (d) profile curve of panel (b) along the center of the defects.