Table 1 Fitting parameters for the size effect of cyan sandstone.

From: Size effect on damage evolution and failure characteristics of cyan sandstone under uniaxial compression

h/d

UCS /MPa

A

C

\(d_{0}\)

\(\beta\)

1

68.01

1.38 × 10–6

1.43 × 10–4

104.13

0.48

1.5

64.45

1.38 × 10–6

1.43 × 10–4

104.13

0.72

2

59.94

1.38 × 10–6

1.43 × 10–4

104.13

0.96

2.5

56.52

1.38 × 10–6

1.43 × 10–4

104.13

1.20

3

52.68

1.38 × 10–6

1.43 × 10–4

104.13

1.44

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