Terahertz and Thermal Testing of Glass-Fiber Reinforced Composites with Impact Damages

Figure 4

Results of S2 sample THz inspection: (a) raw B-scan signal, (b) frequency response of damaged and healthy material, (c) spatial distribution of measured waveform’s magnitude in case of selected frequency, (d) distribution of phase.

(a)

(b)

(c)

(d)