Study on the Damage Evolution Process and Fractal of Quartz-Filled Shale under Thermal-Mechanical Coupling

Table 1

Numerical model parameters.

	Elastic modulus /MPa	Compressive strength /MPa	Poisson’s ratio	Friction angle (°)	Thermal conductivity/J.(m.s.°C)^-1	Heat capacity/(J.(kg.°C)^-1)	Thermal expansion coefficient/(10^-6.°C^-1)
Shale	51600	145	0.22	35	1250	1250	1.36
Quartz	96000	375	0.08	60	700	700	1.1