A New Approach of Waveform Interpretation Applied in Nondestructive Testing of Defects in Rock Bolts Based on Mode Identification

Table 3

Material parameters used in simulation.

Material	Density,; (kg/m^3)	Young’s modulus, (GPa)	Poisson’s ratio,
Steel	7840	210	0.30
Grout	2400	17	0.20