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
       

Pulse-echo responses of each element (i = j) for aluminum plate A: (a) directly captured; (b) reconstructed.