Discrete Element Modeling of Crack Initiation Stress of Marble Based on Griffith’s Strength Theory

Table 3

Theoretical and calculated values of (MPa).

Confining pressure	Theoretical	from volumetric strain curve	from crack number curve	Average value of
0	23.1	25.2	24.6	24.9
1	26.0	28.6	27.6	28.1
5	35.8	39.5	37.8	38.65
10	46.1	53.9	48.7	51.3
20	64.2	68.8	66.3	67.55
30	82.4	86.2	84.3	85.25
40	96.2	92.4	95.6	94.0
50	111.0	99.5	104.1	101.8