The Determination of a Damage Model for Mudstone under Uniaxial Loading in Acidic Conditions

Table 3

Rock mechanical parameters.

Sample number	Peak stress (MPa)	Peak strain	Compressive stress (MPa)	Ratio	Elastic Modulus (GPa)
A1	17.33	0.0146	6.92	0.399	2.11
A2	18.61	0.0177	6.91	0.371	2.31
A3	17.51	0.0153	6.37	0.364	1.92
B1	21.59	0.0119	7.99	0.370	3.64
B2	21.54	0.0118	7.09	0.329	3.06
B3	22.11	0.0123	6.61	0.299	3.40
C1	26.87	0.00896	9.30	0.346	5.69
C2	27.01	0.0090	8.18	0.303	4.60
C3	26.25	0.00896	7.69	0.293	4.79
D1	30.41	0.00613	8.48	0.279	8.07
D2	31.70	0.00638	10.4	0.328	7.68
D3	30.77	0.00609	9.48	0.308	8.22
E1	50.14	0.00498	10.6	0.211	10.5
E2	43.28	0.00537	12.5	0.288	9.87
E3	46.97	0.00521	12.2	0.259	9.93