The intrinsic specific energy, that is the minimum energy consumed by pure cutting action to cut unit volume of rock, along with the rock strain energy, that is the absorbed energy by unit volume of rock in uniaxial compression, were used together to assess rock cutting performance. A series of rock cutting tests using a single polycrystalline diamond compact (PDC) cutter under steady conditions, and uniaxial compressive tests with a single-cyclic loading, otherwise monotonic loading were carried out on rock samples. Different rock types having unconfined compressive strength values of 9–249 MPa were carefully tested to determine the intrinsic specific energy and strain energy values. The results suggest that stress and strain characteristics of the rock obtained from uniaxial compressive tests, in terms of absorbed energy, can be related to cutting performance. Therefore, it was concluded that the strain energy can be used to assess the intrinsic specific energy to evaluate drilling performance in PDC cutting.
AkonoAT. 2011. Scratch Tests: A New Way of Evaluating the Fracture Toughness of Materials. Master Degree Thesis, Massachusetts Institute of Technology. Cambridge, Massachusetts.
2.
AtkinsAG.2003. Modelling metal cutting using modern ductile fracture mechanics: quantitative explanations for some longstanding problems. Int J Mech Sci.45:373–396. doi:10.1016/S0020-7403(03)00040-7.
3.
AtkinsAG.2005. Toughness and cutting: a new way of simultaneously determining ductile fracture toughness and strength. Eng Fract Mech. 72:849–860. doi:10.1016/j.engfracmech.2004.07.014.
4.
AtkinsAG.2007. Fracture toughness and cutting. Int J Prod Res. 12:263–274. doi:10.1080/00207547408919554.
5.
AtkinsT.2009. Chapter 3 – Simple orthogonal cutting of floppy, brittle and ductile materials. In: AtkinsT, editor. The science and engineering of cutting. Oxford: Butterworth-Heinemann; p. 35–74. doi:10.1016/B978-0-7506-8531-3.00003-1.
6.
BieniawskiZT.1967. Mechanism of brittle fracture of rock. Int J Rock Mech Min Sci.4:395–406. doi:10.1016/0148-9062(67)90030-7.
7.
BischoffPH, PerrySH.1991. Compressive behaviour of concrete at high strain rates. Mater Struct. 24:425–450.10.1007/BF02472016
8.
DetournayE, AtkinsonC.2000. Influence of pore pressure on the drilling response in low-permeability shear-dilatant rocks. Int J Rock Mech Min Sci.37:1091–1101. doi:10.1016/S1365-1609(00)00050-2.
9.
DetournayE, DefournyP.1992. A phenomenological model for the drilling action of drag bits. Int J Rock Mech Min Sci.29:13–23. doi:10.1016/0148-9062(92)91041-3.
10.
DetournayE, RichardT, ShepherdM.2008. Drilling response of drag bits: theory and experiment. Int J Rock Mech Min Sci.45:1347–1360. doi:10.1016/j.ijrmms.2008.01.010.
11.
FairhurstCE, HudsonJA.1999. Draft ISRM suggested method for the complete stress–strain curve for intact rock in uniaxial compression. Int J Rock Mech Min Sci.36:279–289. doi:10.1016/S0148-9062(99)00006-6.
12.
FrancaLFP.2010. Drilling action of roller-cone bits: modeling and experimental validation. J Energy Resour Technol.132:043101. doi:10.1115/1.4003168.
13.
FrancaLFP, MostofiM, RichardT.2015. Interface laws for impregnated diamond tools for a given state of wear. Int J Rock Mech Min Sci.73:184–193. doi:10.1016/j.ijrmms.2014.09.010.
14.
HudsonJA, BrownET, FairhurstC.1971. Optimizing the control of rock failure in servo-controlled laboratory tests. Rock Mech. 3:217–224. doi:10.1007/BF01238181.
15.
LabuzJF, BiolziL.2007. Experiments with rock: remarks on strength and stability issues. Int J Rock Mech Min Sci.44:525–537. doi:10.1016/j.ijrmms.2006.09.005.
16.
LinJ-S, ZhouY.2013. Can scratch tests give fracture toughness?Eng Fract Mech.109:161–168. doi:10.1016/j.engfracmech.2013.06.002.
17.
LinJ-S, ZhouY.2015. Rebuttal: shallow wide groove scratch tests do not give fracture toughness. Eng Fract Mech.133:211–222. doi:10.1016/j.engfracmech.2014.10.030.
18.
MartinC, ChandlerN.1994. The progressive fracture of Lac du Bonnet granite. Int J Rock Mech Min Sci.31:643–659.
19.
MunozH, TaheriA, ChandaE.2016a. Fracture energy-based brittleness index development and brittleness quantification by pre-peak strength parameters in rock uniaxial compression. Rock Mech Rock Eng. 49:4587–4606. doi:10.1007/s00603-016-1071-4.
20.
MunozH, TaheriA, ChandaE.2016b. Pre-peak and post-peak rock strain characteristics during uniaxial compression by 3D digital image correlation. Rock Mech Rock Eng. 49:2541–2554. doi:10.1007/s00603-016-0935-y
21.
MunozH, TaheriA, ChandaE.2016c. Rock cutting characteristics on soft-to-hard rocks under different cutter inclinations. Int J Rock Mech Min Sci. 87:85–89. doi:10.1016/j.ijrmms.2016.05.014.
22.
PatelY, BlackmanBRK, WilliamsJG.2009. Determining fracture toughness from cutting tests on polymers. Eng Fract Mech.76:2711–2730.10.1016/j.engfracmech.2009.07.019
23.
PenaC.2011. An experimental study of the fragmentation process in rock cutting. Minneapolis (MN): The University of Minnesota.
24.
RichardT, CoudyzerC, DesmentteS.2010. Influence of groove geometry and cutter inclination in rock cutting. Paper presented at the 44th US Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium; Salt Lake City, UT.
25.
RichardT, DagrainF, PoyolE, DetournayE.2012. Rock strength determination from scratch tests. Eng. Geol.147–148:91–100. doi:10.1016/j.enggeo.2012.07.011.
26.
TaheriA, QaoQ, ChandaE.2016. Drilling penetration rate estimation using rock drillability characterization index. J Inst Eng (India): Ser D.97:159–170. doi:10.1007/s40033-015-0104-6.
27.
TaheriA, RoyleA, YangZ, ZhaoY.2016. Study on variations of peak strength of a sandstone during cyclic loading. Geomech Geophys Geo-energ Geo-resour. 2:1–10. doi:10.1007/s40948-015-0017-8.
28.
TaheriA, YfantidisN, OlivaresCL, ConnellyBJ, BastianTJ.2016. Experimental study on degradation of mechanical properties of sandstone under different cyclic loadings. Geotech Test J. 39:673–687. doi:10.1520/GTJ20150231.
29.
TealeR.1965. The concept of specific energy in rock drilling. Int J Rock Mech Min Sci.2:57–73.10.1016/0148-9062(65)90022-7
30.
WawersikWR, BraceWF.1971. Post-failure behavior of a granite and diabase. Rock Mech.3:61–85. doi:10.1007/BF01239627.
31.
WawersikWR, FairhurstCA.1970. A study of brittle rock fracture in laboratory compression experiments. Int J Rock Mech Min Sci.7:561–575.10.1016/0148-9062(70)90007-0
32.
XieHP, LiL, PengR, JuY.2009. Energy analysis and criteria for structural failure of rocks. J Rock Mech Geotech Eng.1:11–20.
33.
ZhouY, LinJ-S.2013. On the critical failure mode transition depth for rock cutting. Int J Rock Mech Min Sci.62:131–137. doi:10.1016/j.ijrmms.2013.05.004.
