Experimental Study on Seismic Fatigue Capacity of High- and Mild-Strength Structural Steels with and without Corrosion

Table 9

Cyclic fatigue test data of S690 steel made of 10 mm thick sheet.

Yield stress: 656 MPa			Ultimate stress: 780 MPa
Sample number	Sample diameter (mm)	Stress applied (MPa)	The number of cycles	Average number of cycles	Sample status at the end of the cycle
1	5.97	600	58570	59003	Failure
2	5.97		59072
3	5.99		59367
4	5.68	593	272974	257712	Failure
5	5.94		249085
6	5.96		251077
7	6.01	585	186490	189249	Failure
8	6.03		187902
9	5.94		193353
10	5.95	570	384915	368670	Failure
11	5.99		370881
12	5.92		350215
13	5.64	555	572253	558849	Failure
14	5.94		556016
15	5.96		548277
16	5.64	540	979681	972321	Failure
17	5.95		970287
18	5.96		966994
19	5.91	525	1261153	1266379	Failure
20	5.97		1261819
21	5.63		1276164
22	5.84	510	1666170	1719041	Failure
23	5.98		1742714
24	5.99		1748239
25	5.97	480	2066133	2020979	Failure
26	6.06		1988098
27	6.01		2008707
28	5.95	450	2690265	2658772	Failure
29	5.93		2681979
30	5.91		2604071
31	5.96	390	3461531	3445689	Failure
32	5.98		3660486
33	5.97		3215050
34	5.95	375	7524827	5759884	Failure
35	5.63		4501640
36	5.98		5253186
37	5.91	368	11101092	11304225	No failure
38	5.96		12700822
39	6.01		10110760
40	5.96	360	11460209	11458223	No failure
41	5.95		11565870
42	5.95		11348590
43	5.95	300	12903151	12893846	No failure
44	5.98		12985800
45	6.00		12792586