Modeling and Calculation of Dent Based on Pipeline Bending Strain

Table 3

Calculation and error for BP neural network.

Actual depth (mm)	Calculation of BP (mm)	Error for calculation of BP and actual depth (mm)	Relative error (%)
14.7153	13.38198	1.33332	9.06
15.8535	12.73971	3.11379	19.64
15.1218	12.85353	2.26827	15.00
15.1218	13.10556	2.01624	13.33
11.3007	13.32507	2.02437	17.91
9.6747	10.19502	0.52032	5.38
15.2844	14.43888	0.84552	5.53