Lamb waves topological imaging combining with Green’s function retrieval theory to detect near filed defects in isotropic plates
Zhang Hui
1
, Zhang Hai-Yan
1, †
, Xu Meng-Yun
1
, Fan Guo-Peng
1
, Zhu Wen-Fa
1
, Chai Xiao-Dong
2
Time trace of
i
= 16,
j
= 12 for aluminum plate A: (a) directly captured; (b) reconstructed.