Table 4 Explosion peak strain at each measuring point of shaft model.

Working condition	Strain gauge direction	Explosion peak strain of each measuring point/\(\mu \varepsilon\)
Working condition	Strain gauge direction	\(\varepsilon_{H1}\)	\(\varepsilon_{H2}\)	\(\varepsilon_{H3}\)	\(\varepsilon_{H4}\)	\(\varepsilon_{V1}\)	\(\varepsilon_{V2}\)	\(\varepsilon_{V3}\)	\(\varepsilon_{V4}\)	\(\varepsilon_{V5}\)	\(\varepsilon_{V6}\)
M0	Radial direction	− 177.37	− 111.97	− 87.77	− 60.02	− 160.33	− 102.15	− 78.26	–	− 43.22	− 30.87
M0	Hoop direction	426.07	294.90	136.61	118.15	225.34	180.24	132.94	110.11	80.34	–
M1	Radial direction	− 407.96	− 203.10	− 159.15	− 104.34	− 200.03	− 157.86	–	− 85.89	− 59.01	− 35.36
M1	Hoop direction	410.98	257.92	135.16	102.18	187.19	150.70	120.00	109.89	70.64	55.34
M2	Radial direction	− 444.63	− 298.13	− 213.46	− 107.02	− 234.38	− 175.25	− 142.48	− 94.97	− 63.74	–
M2	Hoop direction	322.32	255.43	117.91	93.11	166.14	134.13	100.57	74.56	69.59	50.56
M3	Radial direction	− 589.34	− 322.13	− 231.21	− 154.57	− 385.16	− 261.15	− 192.24	− 160.98	–	− 90.44
M3	Hoop direction	311.39	253.61	111.28	85.69	157.31	118.15	80.89	–	52.26	47.87
M4	Radial direction	− 723.35	− 445.09	− 274.93	–	− 560.75	− 420.33	− 356.82	− 212.63	–	− 98.26
M4	Hoop direction	289.11	195.38	96.99	–	128.35	97.21	64.53	50.74	47.57	37.43

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