Computational Modelling of Fracture Propagation in Rocks Using a Coupled Elastic-Plasticity-Damage Model

Table 1

Material constants for Carrara marble.

Material constant	Value
(compressive yield strength)	76 MPa
(compressive damage threshold)	79 MPa
(compressive hardening modulus)	164.62 MPa
(compressive hardening rate constant)	960.9
(compressive strength where nonlinearity starts)	0.44
(compressive power damage law constant)	1.148
(tensile yield strength)	6.9 MPa
(tensile damage threshold)	6.9 MPa
(tensile hardening modulus)	15000 MPa
(tensile strength where nonlinearity starts)	1.25
(tensile power damage law constant)	0.32