A Failure Criterion for Unsupported Boreholes in Poorly Cemented Granular Formations
 Lund, J.W., D.H. Freeston, and T.L. Boyd, Direct application of geothermal energy: 2005 worldwide review. Geothermics, 2005. 34(6): p. 691-727.
 Hashemi, S., A. Momeni, and N. Melkoumian, Investigation of borehole stability in poorly cemented granular formations by discrete element method. Journal of Petroleum Science and Engineering, 2014. 113: p. 23-35.
 Bratli, R.K. and R. Risnes, Stability and failure of sand arches. Society of Petroleum Engineers Journal, 1981. 21(02): p. 236-248.
 Hashemi, S., N. Melkoumian, and C. Xu. Effect of grain bonding on the stability of a borehole drilled through low cemented formations. in Proceedings: the 7th Australasian Congress on Applied Mechanics (ACAM 7), 9-12 December 2012, the University of Adelaide, North Terrace Campus/National Committee on Applied Mechanics of Engineers Australia. 2012. Engineers Australia.
 Tan, Q., J.G. Deng, and B.H. Yu, Study on Borehole Stability of Unconsolidated Sandstone in Depleted Reservior. Advanced Materials Research, 2013. 616: p. 720-725.
 Alsayed, M., Utilising the Hoek triaxial cell for multiaxial testing of hollow rock cylinders. International Journal of Rock Mechanics and Mining Sciences, 2002. 39(3): p. 355-366.
 Alsayed, M.I., Rock behaviour under multiaxial compression. 1996, Newcastle University.
 Perie, P. and R. Goodman. Evidence of new failure patterns in a thick-walled cylinder experiment. in Proc. 12th ETCE/ASME Conf. 1989.
 Ewy, R. and N. Cook. Deformation and fracture around cylindrical openings in rock—II. Initiation, growth and interaction of fractures. in International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. 1990. Elsevier.
 Ewy, R. and N. Cook. Deformation and fracture around cylindrical openings in rock—I. Observations and analysis of deformations. in International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. 1990. Elsevier.
 Hashemi, S. and N. Melkoumian, Effect of different stress path regimes on borehole instability in poorly cemented granular formations. Journal of Petroleum Science and Engineering, 2016. 146: p. 30-49.
 Hashemi, S., A. Taheri, and N. Melkoumian, An experimental study on the relationship between localised zones and borehole instability in poorly cemented sands. Journal of Petroleum Science and Engineering, 2015. 135: p. 101-117.
 Fairhurst, C., Stress estimation in rock: a brief history and review. International Journal of Rock Mechanics and Mining Sciences, 2003. 40(7): p. 957-973.
 Amadei, B. and O. Stephansson, Rock stress and its measurement. 1997: Springer.
 Zoback, M.D., et al., Well bore breakouts and in situ stress. Journal of Geophysical Research: Solid Earth (1978–2012), 1985. 90(B7): p. 5523-5530.
 Della Vecchia, G., et al., An analytical expression for the determination of in situ stress state from borehole data accounting for breakout size. International Journal of Rock Mechanics and Mining Sciences, 2014. 66(Complete): p. 64-68.
 Aadnoy, B.S., C. Gonsalves, and E. Kaarstad. Obtaining both horizontal stresses from wellbore collapse. in SPE/IADC Drilling Conference. 2013. Society of Petroleum Engineers.
 Obert, L. and W. Duvall, Rock mechanics and the design of structures in rock, 1967. 1967, Wiley, New York.
 Jaeger, J.C., N.G. Cook, and R. Zimmerman, Fundamentals of rock mechanics. 2009: John Wiley & Sons.
 Hashemi, S., A. Taheri, and N. Melkoumian, Shear failure analysis of a shallow depth unsupported borehole drilled through poorly cemented granular rock. Engineering Geology, 2014.
 Clift, S.E., et al., Fracture prediction in plastic deformation processes. International Journal of Mechanical Sciences, 1990. 32(1): p. 1-17.
 Atkinson, K., An introduction to numerical analysis. 1989. New York, 1991: p. 528.
 Mogi, K., Effect of the intermediate principal stress on rock failure. Journal of Geophysical Research, 1967. 72(20): p. 5117-5131.
 Al-Ajmi, A.M. and R.W. Zimmerman, Stability analysis of vertical boreholes using the Mogi–Coulomb failure criterion. International Journal of Rock Mechanics and Mining Sciences, 2006. 43(8): p. 1200-1211.
 Carpinteri, A., Size-scale effects in the failure mechanisms of materials and structures. 2002: CRC Press.