Stress Distribution and Fluctuation Cycle on the Rack Face of the Rock Cutting Tool

Table 1

Rock and tool material parameters.

Materials	Elasticity modulus (GPa)	Density (kg·m^−3)	Poisson ratio	Internal friction angle (°)	Cohesion (MPa)	Compressive strength (MPa)	Dilation angle (°)	Fracture strain
Sandstone	5.6	2500	0.168	24.47	26.13	67.2	20.3	0.0067
Cemented carbide	800	15000	0.2	—	—	—	—	—