Microcrack fracturing of coal specimens under quasi-static combined compression-shear loading

Alkan, 2007, Rock salt dilatancy boundary from combined acoustic emission and triaxial compression tests, International Journal of Rock Mechanics and Mining Sciences, 44, 108, 10.1016/j.ijrmms.2006.05.003 Ashab, 2015, Combined compression-shear behavior of aluminum honeycombs, Key Engineering Materials, 626, 127, 10.4028/www.scientific.net/KEM.626.127 Ashab, 2016, Quasi-static and dynamic experiments of aluminum honeycombs under combined compression-shear loading, Materials and Design, 97, 183, 10.1016/j.matdes.2016.02.074 Bieniawski, 1967, Mechanism of brittle fracture of rock: part II—experimental studies, International Journal of Rock Mechanics and Mining Sciences, 4, 407, 10.1016/0148-9062(67)90031-9 Bieniawski, 1967, Mechanism of brittle fracture of rock: part I—theory of the fracture process, International Journal of Rock Mechanics and Mining Sciences, 4, 395, 10.1016/0148-9062(67)90030-7 Bieniawski, 1967, Mechanism of brittle fracture of rock: part III—fracture in tension and under long-term loading, International Journal of Rock Mechanics and Mining Sciences, 4, 425, 10.1016/0148-9062(67)90032-0 Bieniawski, 1968, Propagation of brittle fracture in rock, 409 Brace, 1966, Recent experimental studies of brittle fracture of rocks, 58 Brace, 1966, Dilatancy in the fracture of crystalline rocks, Journal of Geophysical Research, 71, 3939, 10.1029/JZ071i016p03939 Cai, 2010, Practical estimates of tensile strength and Hoek–Brown strength parameter mi of brittle rocks, Rock Mechanics and Rock Engineering, 43, 167, 10.1007/s00603-009-0053-1 Cai, 2004, Generalized crack initiation and crack damage stress thresholds of brittle rock masses near underground excavations, International Journal of Rock Mechanics and Mining Sciences, 41, 833, 10.1016/j.ijrmms.2004.02.001 Chang, 2004, Estimation of cracking and damage mechanisms in rock under triaxial compression by moment tensor analysis of acoustic emission, International Journal of Rock Mechanics and Mining Sciences, 41, 1069, 10.1016/j.ijrmms.2004.04.006 Du, 2020, Mechanical responses and failure mechanism of hydrostatically pressurized rocks under combined compression-shear impacting, International Journal of Mechanical Sciences, 165, 105219, 10.1016/j.ijmecsci.2019.105219 Eberhardt, 1997, Changes in acoustic event properties with progressive fracture damage, International Journal of Rock Mechanics and Mining Sciences, 34, 71 Eberhardt, 1998, Identifying crack initiation and propagation thresholds in brittle rock, Canadian Geotechnical Journal, 35, 222, 10.1139/t97-091 Eberhardt, 1999, Quantifying progressive pre-peak brittle fracture damage in rock during uniaxial compression, International Journal of Rock Mechanics and Mining Sciences, 36, 361, 10.1016/S0148-9062(99)00019-4 Eberhardt, 1999, Effects of grain size on the initiation and propagation thresholds of stress-induced brittle fractures, Rock Mechanics and Rock Engineering, 32, 81, 10.1007/s006030050026 Eberhardt, 1999, Effects of sample disturbance on the stress induced microfracturing characteristics of brittle rock, Canadian Geotechnical Journal, 36, 239, 10.1139/t98-109 Esterhuizen, 2011, Pillar strength in underground stone mines in the United States, International Journal of Rock Mechanics and Mining Sciences, 48, 42, 10.1016/j.ijrmms.2010.06.003 Feng, 2015, Strength restoration of cracked sandstone and coal under a uniaxial compression test and correlated damage source location based on acoustic emissions, PLoS One, 10, 1, 10.1371/journal.pone.0145757 Foroughi, 1997, Estimating elastic pillar stresses in inclined coal seams, Transactions of Society for Mining, Metallurgy and Exploration, 302, 50 Ganne, 2007, Quantification of pre-peak brittle damage: correlation between acoustic emission and observed micro-fracturing, International Journal of Rock Mechanics and Mining Sciences, 44, 720, 10.1016/j.ijrmms.2006.11.003 He, 2019, Mechanical properties of basalt specimens under combined compression and shear loading at low strain rates, Rock Mechanics and Rock Engineering, 52, 4101, 10.1007/s00603-019-01806-8 He, 2020, Prediction of mechanical properties of igneous rocks under combined compression and shear loading through statistical analysis, Rock Mechanics and Rock Engineering, 53, 841, 10.1007/s00603-019-01948-9 Hoek, 1965, Brittle fracture propagation in rock under compression, International Journal of Fracture, 1, 137, 10.1007/BF00186851 Hoek, 1980, Empirical strength criterion for rock masses, Journal of the Geotechnical Engineering Division, 106, 1013, 10.1061/AJGEB6.0001029 Hou, 2011, Impact behavior of honeycombs under combined shear-compression. Part I: Experiments, International Journal of Solids and Structures, 48, 687, 10.1016/j.ijsolstr.2010.11.005 Hou, 2011, Impact behavior of honeycombs under combined shear-compression. Part II: Analysis, International Journal of Solids and Structures, 48, 698, 10.1016/j.ijsolstr.2010.11.004 Hudson, 1972, Shape of the complete stress-strain curve for rock, 773 Hustrulid, 1976, A review of coal pillar strength formulas, Rock Mechanics, 8, 115, 10.1007/BF01239762 Jaeger, 1966, Brittle fracture of rocks Kahraman, 2001, Evaluation of simple methods for assessing the uniaxial compressive strength of rock, International Journal of Rock Mechanics and Mining Sciences, 38, 981, 10.1016/S1365-1609(01)00039-9 Kim, 2015, A comparative evaluation of stress–strain and acoustic emission methods for quantitative damage assessments of brittle rock, Rock Mechanics and Rock Engineering, 48, 495, 10.1007/s00603-014-0590-0 Lajtai, 1991, Mapping the state of fracture around cavities, Engineering Geology, 31, 277, 10.1016/0013-7952(1)90012-A Ling, 2018, Deformation response of EPS foam under combined compression-shear loading. Part I: experimental design and quasi-static tests, International Journal of Mechanical Sciences, 144, 480, 10.1016/j.ijmecsci.2018.06.014 Liu, 2018, Experimental investigation on the fatigue mechanical properties of intermittently jointed rock models under cyclic uniaxial compression with different loading parameters, Rock Mechanics and Rock Engineering, 51, 47, 10.1007/s00603-017-1327-7 Lu, 2013, Microseismic frequency-spectrum evolutionary rule of rockburst triggered by roof fall, International Journal of Rock Mechanics and Mining Sciences, 64, 6, 10.1016/j.ijrmms.2013.08.022 Lu, 2015, Microseismic multi-parameter characteristics of rockburst hazard induced by hard roof fall and high stress concentration, International Journal of Rock Mechanics and Mining Sciences, 76, 18, 10.1016/j.ijrmms.2015.02.005 Ma, 2016, Numerical analysis on failure modes and mechanisms of mine pillars under shear loading, Shock and Vibration, 10.1155/2016/6195482 Ma, 2016, Numerical simulation on pillar failure patterns, 373 Martin, 2000, The strength of hard-rock pillars, International Journal of Rock Mechanics and Mining Sciences, 37, 1239, 10.1016/S1365-1609(00)00032-0 Martin, 1994, The progressive fracture of Lac du Bonnet granite, International Journal of Rock Mechanics and Mining Sciences, 31, 643, 10.1016/0148-9062(94)90005-1 McClintock, 1963, Friction on Griffith cracks in rocks under pressure, 1015 Mohr, 2002, Analysis of the Arcan apparatus in the clamped configuration, Journal of Composite Materials, 36, 2583, 10.1177/002199802761405303 Moradian, 2006, Detection of cracking levels in brittle rocks by parametric analysis of the acoustic emission signals, Rock Mechanics and Rock Engineering, 49, 785, 10.1007/s00603-015-0775-1 Nie, 2007, Dynamic failure of a borosilicate glass under compression/shear loading, Journal of the American Ceramic Society, 90, 2556, 10.1111/j.1551-2916.2007.01819.x Pariseau, 1982, Shear stability of mine pillars in dipping seams, 1077 Ranjith, 2004, Characterisation of fractured rocks under uniaxial loading states, International Journal of Rock Mechanics and Mining Sciences, 41, 43, 10.1016/j.ijrmms.2004.03.017 Ranjith, 2010, The effect of CO2 saturation on mechanical properties of Australian black coal using acoustic emission, Fuel, 89, 2110, 10.1016/j.fuel.2010.03.025 Rittel, 2002, A shear-compression specimen for large strain testing, Experimental Mechanics, 42, 58, 10.1007/BF02411052 Salamon, 1999, Strength of coal pillars from back-calculation Schmidtke, 1985, The long-term strength of Lac Du Bonnet granite, International Journal of Rock Mechanics and Mining Sciences, 22, 461, 10.1016/0148-9062(85)90010-5 Scholz, 1986, Experimental study of the fracturing process in brittle rock, Journal of Geophysical Research, 73, 1447, 10.1029/JB073i004p01447 She, 2017 Souley, 2001, Damage-induced permeability changes in granite: a case example at the URL in Canada, International Journal of Rock Mechanics and Mining Sciences, 38, 297, 10.1016/S1365-1609(01)00002-8 Su, 2000, Experimental study of damage in granite, Géotechnique, 50, 235, 10.1680/geot.2000.50.3.235 Suorineni, 2011, Mining of orebodies under shear loading: Part 1–Case histories, Mining Technology, 120, 137, 10.1179/1743286311Y.0000000012 Suorineni, 2014, Mining of orebodies under shear loading: Part 2–Failure modes and mechanisms, Mining Technology, 123, 240, 10.1179/1743286314Y.0000000072 Tan, 2019, Static and dynamic strength of soda-lime glass under combined compression-shear loading, Journal of Non-Crystalline Solids, 516, 14, 10.1016/j.jnoncrysol.2019.04.024 Tao, 2015, Quasi-static failure behaviour of PMMA under combined shear–compression loading, Polymer Testing, 42, 181, 10.1016/j.polymertesting.2015.01.018 Tounsi, 2016, Dynamic behaviour of honeycombs under mixed shear-compression loading: experiments and analysis of combined effects of loading angle and cells in-plane orientation, International Journal of Solids and Structures, 80, 501, 10.1016/j.ijsolstr.2015.10.010 Ulusay, 2014 Vishal, 2015, An experimental investigation on behaviour of coal under fluid saturation, using acoustic emission, Journal of Natural Gas Science and Engineering, 22, 428, 10.1016/j.jngse.2014.12.020 Wen, 2018, Evaluation of methods for determining crack initiation stress under compression, Engineering Geology, 235, 81, 10.1016/j.enggeo.2018.01.018 Xin, 2009, Modeling and characterization of dynamic failure of borosilicate glass under compression/shear loading, International Journal of Impact Engineering, 36, 226, 10.1016/j.ijimpeng.2008.01.014 Xu, 2015, Investigation of rock material under combined compression and shear dynamic loading: an experimental technique, International Journal of Impact Engineering, 86, 206, 10.1016/j.ijimpeng.2015.07.014 Xu, 2018, Dynamic response and failure mechanism of brittle rocks under combined compression-shear loading experiments, Rock Mechanics and Rock Engineering, 51, 747, 10.1007/s00603-017-1364-2 Xue, 2014, A study on crack damage stress thresholds of different rock types based on uniaxial compression tests, Rock Mechanics and Rock Engineering, 47, 1183, 10.1007/s00603-013-0479-3 Yao, 2015, Experimental study of strength characteristics of coal specimens after water intrusion, Arabian Journal of Geosciences, 8, 6779, 10.1007/s12517-014-1764-5 Yao, 2016, Effects of water intrusion on mechanical properties of and crack propagation in coal, Rock Mechanics and Rock Engineering, 49, 4699, 10.1007/s00603-016-1079-9 Zhang, 2014, The effect of bedding structure on mechanical property of coal, Advances in Materials Science and Engineering, 10.1155/2014/952703 Zhang, 2016, Experimental investigation on yield behavior of PMMA under combined shear–compression loading, Results in Physics, 6, 265, 10.1016/j.rinp.2016.05.004 Zhang, 2018, Effects of water and brine saturation on mechanical property alterations of brown coal, Energies, 11, 1116, 10.3390/en11051116 Zhang, 2019, Quasi-static combined compression-shear crushing of honeycombs: an experimental study, Materials and Design, 167, 107632, 10.1016/j.matdes.2019.107632 Zhao, 2011, A new technique for combined dynamic compression-shear test, Dynamic Behavior of Materials, 1, 417 Zhao, 2012, Technique for combined dynamic compression–shear testing of PBXs, Experimental Mechanics, 52, 205, 10.1007/s11340-011-9534-8 Zhao, 2013, Damage stress and acoustic emission characteristics of the Beishan granite, International Journal of Rock Mechanics and Mining Sciences, 64, 258, 10.1016/j.ijrmms.2013.09.003 Zhao, 2015, Objective determination of crack initiation stress of brittle rocks under compression using AE measurement, Rock Mechanics and Rock Engineering, 48, 2473, 10.1007/s00603-014-0703-9 Zhou, 2012, Experimental investigation on the yield behavior of Nomex honeycombs under combined shear-compression, Latin American Journal of Solids and Structures, 9, 515, 10.1590/S1679-78252012000400006 Zhou, 2013, Shear-compression failure behavior of PMMA at different loading rates, Materials Letters, 109, 151, 10.1016/j.matlet.2013.05.081 Zhou, 2018, Heterogeneity in deformation of granite under dynamic combined compression/shear loading, Mechanics of Materials, 123, 1, 10.1016/j.mechmat.2018.04.013