An Automatic Measurement Method of Test Beam Response Based on Spliced Images

Table 5

Cracks’ width results and deviations.

Fracture number	Load (kN)	Width identification (mm)	Width measurement (mm)	The deviation of width (mm)	Relative deviation (%)	Average deviation (%)
①	150	0.277	0.304	0.027	8.88	12.13
	225	0.457	0.540	0.083	15.37
②	150	0.261	0.236	0.025	10.59	9.64
	225	0.326	0.357	0.031	8.68
③	150	0.392	0.321	0.071	22.12	13.52
	225	1.430	1.504	0.074	4.92