Deformation Fields Measurement of Crack Tip under High-Frequency Resonant Loading Using a Novel Hybrid Image Processing Method

Figure 21

Y-direction strain amplitude fields of crack tip region with different crack lengths.

(a) 4.12mm

(b) 5.17mm

(c) 6.28mm

(d) 7.56mm

(e) 8.42mm

(f) 9.26mm

(g) 10.54mm

(h) 11.34mm

(i) 12.68mm