-Adaptive Refinement Based on Stress Recovery Technique Considering Ordinary Kriging Interpolation in L-Shaped Domain

Table 2

The relative percentage errors of 12-element model by the modified SPR method.

Number of iterations	Least square method		Ordinary kriging interpolation
	NDF	(%)	NDF	(%)
1; 2; 3; 4; 5; 6; 7; 8; 9; 10	36; 89; 135; 190; 224; 272; 282; 314; 343; 363	20.49; 13.82; 8.35; 7.89; 7.21; 6.22; 6.19; 6.29; 7.50; 5.48	36; 96; 149; 214; 234; 264; 301; 353; —; —	33.12; 15.11; 7.11; 4.00; 4.30; 3.01; 3.54; 4.17; —; —