Advances in Materials Science and Engineering

Research Article

Experimental and Numerical Evaluation of Rock Dynamic Test with Split-Hopkinson Pressure Bar

Table 1

Mechanical properties of the rock.


Properties	value

Type of rock	Sandstone
(kg/m³)	2630
/GPa	6.00
	0.71
	1.84
	0.007
	1.00
/s⁻¹
	0.01
	5.0
/GPa	0.035

/GPa	1.035
	0.100
	0.045
	1.00
Tensile strength/MPa	13.8
/MPa	91.36
/GPa	85
/GPa	−171
/GPa	208

: standard cohesion strength; : standard pressure hardening coefficient; : the coefficient of strain rate; : pressure hardening index; : damage constant; : Elastic peak point/the pressure of crack compaction point; : bulk strain; , , and : rock constant; : compressive strength; : ultimate strength; : the minimum tensile strain at break; : reference rate of strain.