Energy Evolution and Mechanical Features of Granite Subjected to Triaxial Loading-Unloading Cycles

Table 3

Poisson’s ratio of whole loading process.

Confining pressure (MPa)	Initial Poisson’s ratio	Failure Poisson’s ratio	Increment	Rate of increase (%)
1	0.15	0.3	0.15	100
10	0.14	0.28	0.14	100
20	0.15	0.29	0.14	93
30	0.18	0.26	0.08	44
40	0.20	0.27	0.07	35
45	0.20	0.26	0.06	30