Influences of the diameter and position of the inner hole on the strength and failure of disc specimens of sandstone determined using the Brazilian split test
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State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, China
School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin, China
Submission date: 2017-11-04
Acceptance date: 2018-08-01
Publication date: 2019-01-20
Journal of Theoretical and Applied Mechanics 2019;57(1):127-140
The Brazilian split test on a centrally holed disc (referred to as a ring-disc specimen) is an important indirect method for determining the tensile strength of rock. This paper studies the effect of the diameter d of the center hole and its position, defined by the eccentricity b and the inclination angle of the eccentric hole, on the peak load, failure pattern and horizon- tal stress of the disc specimen via laboratory experiments and numerical modeling using the finite element method (FEM). Static Brazilian split tests are conducted on an intact disc and three types of holed discs: C-specimens containing a central hole with different diame- ters, EH-specimens with a horizontally eccentric hole and ER-specimens with a rotationally eccentric hole.
Cai M., 2013: Fracture initiation and propagation in a Brazilian disc with a plane interface: a numerical study, Rock Mechanics and Rock Engineering, 46, 289-302.
Dai F., Chen R., Iqbal M.J., Xia K., 2010: Dynamic cracked chevron notched Brazilian disc method for measuring rock fracture parameters, International Journal of Rock Mechanics and Mining Sciences, 47, 606-613.
Fairhurst C., 1964: On the validity of the ‘Brazilian’ test for brittle materials, International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts, 1, 535-546.
Fischer M.P., Alley R.B., Engelder T., 1995, Fracture toughness of ice and firn determined from the modified ring test, Journal of Glaciology, 41, 383-394.
Fowell R.J., 1995, Suggested method for determining mode I fracture toughness using Cracked Chevron Notched Brazilian Disc (CCNBD) specimens, International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 32, 57-64.
Hobbs D.W., 1964, The tensile strength of rocks, International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts, 1, 385-396.
Hobbs D.W., 1965, An assessment of a technique for determining the tensile strength of rock, British Journal of Applied Physics, 16, 259-268.
Hossain A.B., Weiss J., 2006, The role of specimen geometry and boundary conditions on stress development and cracking in the restrained ring test, Cement and Concrete Research, 36, 189-199.
Hua W., Li Y., Dong S., Li N., Wang Q., 2015, T-stress for a centrally cracked Brazilian disk under confining pressure, Engineering Fracture Mechanics, 149, 37-44.
Huang D., Zhu T.T., 2018, Experimental and numerical study on the strength and hybrid fracture of sandstone under tension-shear stress, Engineering Fracture Mechanics, 200, 387-400.
Hudson J.A., 1969, Tensile strength and the ring test, International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts, 6, 91-97.
ISRM, 1978, Suggested methods for determining tensile strength of rock materials, International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts, 15, 99-103.
Keles C., Tutluoglu L., 2011, Investigation of proper specimen geometry for mode I fracture toughness testing with flattened Brazilian disc method, International Journal of Fracture, 169, 61-75.
Lambert D.E., Ross C.A., 2000, Strain rate effects on dynamic fracture and strength, International Journal of Impact Engineering, 24, 985-998.
Lin H., Xiong W., Xiong Z., Gong F., 2015, Three-dimensional effects in a flattened Brazilian disk test, International Journal of Rock Mechanics and Mining Sciences, 74, 10-14.
Lin H., Xiong W., Yan Q., 2016, Modified formula for the tensile strength as obtained by the flattened Brazilian disk test, Rock Mechanics and Rock Engineering, 49, 1-8.
Mellor M., Hawkes I., 1971, Measurement of tensile strength by diametral compression of discs and annuli, Engineering Geology, 5, 173-225.
Perras M.A., Diederichs M.S., 2014, A review of the tensile strength of rock, concepts and testing, Geotechnical and Geological Engineering, 32, 525-546.
Riazi R., Torabi A.R., Amininejad S., Sabour M.H., 2015, Combined tension-shear fracture analysis of V-notches with end holes, Acta Mechanica, 226, 3717-3736.
Shang Y., Park H.D., Yuan G., Sun Y., Gao Q., 2008, From in situ stress and discontinuities to the strength of granites, comparison and case study, Geosciences Journal, 12, 361-372.
Song I., Suh M., Won K.S., Haimson B., 2001, A laboratory study of hydraulic fracturing breakdown pressure in tablerock sandstone, Geosciences Journal, 5, 263-271.
Steen B.D., Vervoort A., Napier J.L., 2005, Observed and simulated fracture pattern in diametrically loaded discs of rock material, International Journal of Fracture, 131, 35-52.
Surendra K.N., Simha K.Y., 2013, Design and analysis of novel compression fracture specimen with constant form factor, Edge Cracked Semicircular Disk, ECSD, Engineering Fracture Mechanics, 102, 235-248.
Tong J., Wong K.Y., Lupton C., 2007, Determination of interfacial fracture toughness of bone-cement interface using sandwich Brazilian disks, Engineering Fracture Mechanics, 74, 1904-1916.
Wang S.Y., Sloan S.W., Tang C.A., 2014, Three-dimensional numerical investigations of the failure mechanism of a rock disc with a central or eccentric hole, Rock Mechanics and Rock Engineering, 47, 2117-2137.
Zhang W., Gao L., Jiao X., Yu J., Su X., Du S., 2014, Occurrence assessment of earth fissure based on genetic algorithms and artificial neural networks in Su-Xi-Chang land subsidence area, China, Geosciences Journal, 18, 485-493.
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