Neural Networks Applied to the Wave-Induced Fatigue Analysis of Steel Risers

Table 6

Stress correlation coefficients (riser TDZ cross section).

Index			EE	NE	NN	NW
#	Hs (m)	Tp (s)
01	0.25	4.95	0.9922	0.9489	0.9253	0.9857
02	0.75	6.33	0.9985	0.9968	0.9983	0.9972
03	1.25	7.02	0.9970	0.9699	0.9986	0.9986
04	1.75	8.41	0.9953	0.9992	0.9992	0.9858
05	2.25	9.11	0.9971	0.9966	0.9990	0.9971
06	2.75	9.81	0.9963	0.9980	0.9979	0.9944
07	3.25	10.51	0.9940	0.9970	0.9893	0.9917
08	3.75	11.21	0.9744	0.9614	0.9520	0.9909
09	4.25	11.91	0.9597	0.8650	0.9805	0.9948
10	4.75	12.62	0.9803	0.9356	0.9851	0.9520
11	5.25	13.32	0.9776	0.9610	0.9954	0.9728
Index			SE	SS	SW	WW
#	Hs (m)	Tp (s)
01	0.25	4.95	0.9906	0.9343	0.9438	0.9897
02	0.75	6.33	0.9806	0.8037	0.9570	0.9803
03	1.25	7.02	0.9722	0.9613	0.7965	0.9669
04	1.75	8.41	0.9742	0.9888	0.9808	0.9615
05	2.25	9.11	0.9843	0.9934	0.9892	0.9671
06	2.75	9.81	0.9890	0.9956	0.9930	0.9789
07	3.25	10.51	0.9907	0.9959	0.9940	0.9827
08	3.75	11.21	0.9934	0.9919	0.9952	0.9803
09	4.25	11.91	0.9902	0.9937	0.9955	0.9446
10	4.75	12.62	0.9458	0.9894	0.9750	0.9457
11	5.25	13.32	0.9533	0.9898	0.9729	0.9360