Investigation on Damage Characteristic and Constitutive Model of Deep Sandstone under Coupled High Temperature and Impact Loads

Table 2

The dynamic constitutive model parameters of deep sandstone.

Strain rate (s^-1)	Temperature (°C)			(GPa)	(GPa)	(GPa)	(GPa)	(s^-1)
170	25	0.006	1.7	60.3			11.1
	100	0.008	1.7	35.6			7.7
	300	0.009	1.7	39.2			8.1
	500	0.010	1.7	43.2			7.9
	700	0.011	1.7	42.2			8.1
	900	0.012	1.7	48.6			7.3
205	25	0.011	1.7	28.2			7.9
	100	0.011	1.7	31.5			8.7
	300	0.011	1.7	28.4			8.1
	500	0.012	1.7	40.5			8.5
	700	0.013	1.7	27.2			8.1
	900	0.013	1.7	23.9			8.4
240	25	0.011	1.7	62.9			8.3
	100	0.012	1.7	54.2			8.3
	300	0.012	1.7	45.3			8.1
	500	0.013	1.7	56.6			7.8
	700	0.013	1.7	34.8			8.1
	900	0.017	1.7	14.8			8.2