Research Article

Effect of Bedding Angle and Confining Pressure on the Brittleness of Geomaterials: A Case Study on Slate

Table 1

The calculated slate brittleness indices.

NumbersEnergy accumulated at the axial prepeak stage (106 J/m3)Energy accumulated at the circumferential prepeak stage (106 J/m3)Work done by press tester at the axial postpeak stage (106 J/m3)Work done by press tester at the circumferential postpeak stage (106 J/m3)Residual strain energy (106 J/m3)Brittleness

0-1#0.29270.00000.00000.00000.00005.6147
0-2#0.20950.00000.13000.00000.00862.5450
0-3#0.30590.00000.55040.00000.00001.5558
15-11#0.50990.00000.26320.00000.26971.9124
15-12#0.28530.00000.01810.00000.000016.7754
30-11#0.24310.00000.02420.00000.000011.0322
30-13#0.25960.00000.13320.00000.00002.9487
45-6#0.22980.00000.13490.00000.00002.7034
45-7#0.20080.00000.04050.00000.01425.6051
45-8#0.22210.00000.02040.00000.000211.8561
60-1#0.18220.00000.03100.00000.00006.8827
60-2#0.25610.00000.06820.00000.02024.4588
60-3#0.25730.00000.18470.00000.00002.3930
75-3#0.15020.00000.07860.00000.01892.6709
90-1#0.41360.00000.01400.00000.35595.1345
90-3#0.30400.00000.04320.00000.05846.6838
0-8#0.57070.00590.75870.08810.00361.6768
15-1#0.53380.00450.47280.02690.16161.7538
15-2#0.61550.00490.11680.02530.04625.0407
30-1#0.42190.00340.13190.00810.16082.8893
30-2#0.54120.00350.01540.00770.203315.7825
45-1#0.50120.00390.12670.01440.12063.7246
45-2#0.74140.00530.01810.02430.110315.9934
45-12#0.44100.00520.10510.01270.10503.8964
60-4#0.46700.00450.07410.01200.06095.7707
75-4#0.29740.00550.05960.00940.09384.0332
75-5#0.45570.00630.26940.02160.19931.9027
90-5#0.72900.00790.04750.02530.17898.6697
90-15#0.50980.00450.31570.01780.18131.9987
0-5#0.77270.01520.27210.04320.22222.7943
0-9#0.69310.01430.46240.03950.23821.9349
15-3#1.10130.01350.32350.03870.23833.4198
15-4#1.02160.01280.09510.05580.15166.8464
30-3#0.96270.01320.06750.06500.02668.1641
30-4#0.32690.01870.14970.05200.07482.3430
30-5#0.62050.00780.36710.05290.18342.0591
45-3#0.66000.00760.06850.02910.13576.4496
45-4#0.52550.00950.14200.03980.10973.3396
45-13#0.58250.01420.05080.05840.01006.3732
60-6#0.85630.01140.05070.02770.35487.5410
60-7#0.86560.01110.02240.01480.471311.8739
75-6#0.39910.00700.53000.00440.34691.1107
75-7#0.54090.00980.09650.09260.07923.4931
90-6#0.98100.01450.12630.03250.23875.7626
90-7#0.63700.01080.21390.01590.27542.6204
0-10#0.84920.02620.26500.61380.05211.9369
15-5#1.38970.03340.05540.05440.56818.7839
15-6#1.16950.02560.25470.13200.25623.4277
15-9#1.81930.03640.74060.06740.85402.2397
30-6#1.10280.02450.29720.03270.51052.8697
30-7#1.03340.02640.10700.04320.55714.3473
45-5#0.48580.03280.08340.14370.06223.0100
45-14#1.07870.03710.06950.03830.42707.3877
45-16#1.16420.04270.12060.02020.54565.6984
60-8#1.18810.02860.06450.03270.70866.2265
60-10#1.09590.02060.30900.02720.99321.3665
75-9#0.96580.02540.11470.31070.07113.1626
90-8#1.46600.03040.24570.03200.99742.7966
90-9#1.62930.08090.45410.04471.06852.2866
90-14#1.27780.02780.08280.06090.64805.5740
0-7#1.58910.05680.83130.45320.11892.1887
0-11#1.64230.06750.12000.06030.67356.7483
15-7#1.84020.04501.28950.30180.39811.9346
15-8#1.99700.05450.90920.10120.99242.0482
30-8#1.68190.04290.07570.04320.90607.8858
30-9#1.14870.14940.27450.24960.19153.1117
30-10#1.76280.04730.56190.43870.12952.6797
45-10#1.73740.05520.11320.00390.93108.3590
45-11#1.52920.05420.08240.00471.00358.1359
60-11#1.90650.04820.13450.00441.24866.3178
60-12#1.40690.04000.25230.21200.14043.8142
75-10#1.50230.03360.52060.56440.14812.2789
75-11#1.38610.03410.34460.01751.27541.3998
90-10#2.00200.01780.07070.07641.04667.6166