Analysis of Mechanical Properties of Sandstone under Freeze-Thaw Cycles Based on Digital Image Correlation (DIC)

Table 3

Evolution process of the -direction main strain of samples U0, U10, U20, U30, U40, and U50.

Samples	0.2σc	0.3σc	0.4σc	0.5σc	0.6σc	0.7σc	0.8σc	0.9σc	σc
U0
U10
U20
U30
U40
U50