基于非线性Lamb波改进全聚焦成像的板中损伤分类与定位

徐旭, 张凡, 李义丰

Nonlinear Lamb wave⁃based damage classification and localization in plates using improved total focusing method

Xu Xu, Fan Zhang, Yifeng Li

图12 双裂纹单圆孔模型分类识别及定位结果：(a)二次谐波成像;(b)基波成像;(c)合并成像;(d)定位结果对比

Fig.12 Classification and localization results of two crack and one hole model：(a) second harmonic imaging，(b) fundamental wave imaging，(c) combined imaging，(d) comparison of localization results