Table 4.

Comparison of obtained crack widths.

Region	Location	Crack Width Calculation (mm)
		Default (Difference)	Hybrid (Difference)	Microscope
I	1	N/A *	0.14 (0.02)	0.12
	2	N/A *	0.14 (0.02)	0.12
	3	0.15 (−0.07)	0.20 (−0.02)	0.22
	4	0.15 (−0.08)	0.20 (−0.03)	0.23
	5	N/A *	0.13 (−0.01)	0.14
II	6	N/A *	0.22 (0.03)	0.19
	7	0.20 (−0.03)	0.25 (0.02)	0.23
	8	0.30 (−0.02)	0.30 (−0.02)	0.32
	9	0.25 (0.01)	0.25 (0.01)	0.24
	10	0.35 (−0.04)	0.40 (0.01)	0.39
III	11	N/A *	0.22 (0.03)	0.19
	12	0.49 (−0.04)	0.49 (−0.04)	0.53
	13	0.49 (−0.01)	0.49 (−0.01)	0.50
	14	0.59 (0.04)	0.59 (0.04)	0.55
	15	0.59 (0.04)	0.59 (0.04)	0.55

* The crack is unidentified.