Research on the Development Mechanism of Postpeak Cracks in Sandstone under Different Confining Pressures

Table 1

CT scanning experiment scheme for post-peak sandstone.

Confining pressure/MPa	Post-peak stress state /MPa
	Peak intensity (A)	Strain softening (B)	Residual strength (C)
2	94	68	42
2.5	96	70	43
3	98	71	44