Method for Evaluating Bolt Competitive Failure Life Under Composite Excitation

Chinese Journal of Mechanical Engineering

Table 3 Composite excitation combinations of competitive failure tests

Group number	F_T,a (N)	F_A,a (N)	ξ	Number of valid specimens	Group number	F_T,a (N)	F_A,a (N)	ξ	Number of valid specimens
1	666.7	0	∞	2	22	1333.3	13000	0.1026	5
2	833.3	0	∞	2	23	1500	13000	0.1154	4
3	1000	0	∞	3	24	666.7	14400	0.0463	3
4	1166.7	0	∞	4	25	833.3	14400	0.0579	5
5	1333.3	0	∞	3	26	1000	14400	0.0694	4
6	1500	0	∞	3	27	1166.7	14400	0.0810	3
7	1666.7	0	∞	3	28	1333.3	14400	0.0926	6
8	0	12000	0	3	29	1500	14400	0.1042	4
9	0	13000	0	3	30	1166.7	9000	0.1296	3
10	0	14400	0	3	31	1333.3	10000	0.1333	3
11	666.7	12000	0.0556	3	32	833.3	6666.7	0.1250	2
12	833.3	12000	0.0694	3	33	1166.7	9333.3	0.1250	3
13	1000	12000	0.0833	5	34	875	7000	0.1250	2
14	1166.7	12000	0.0972	2	35	1125	9000	0.125	2
15	1333.3	12000	0.1111	4	36	833.3	3333.2	0.2500	2
16	1500	12000	0.1250	5	37	1000	3909.8	0.2558	2
17	1666.7	12000	0.1389	4	38	1142	4567.3	0.2500	3
18	666.7	13000	0.0513	4	39	1333.3	5209.3	0.2560	3
19	833.3	13000	0.0641	3	40	907.3	3628.6	0.2500	2
20	1000	13000	0.0769	4	41	1127.3	4602.0	0.2500	2
21	1166.7	13000	0.0897	3	42	1293.5	5172.9	0.2500	2