Scientific Quarterly Journal of Iranian Association of Engineering Geology

Scientific Quarterly Journal of Iranian Association of Engineering Geology

Effect of temperature on Mode I and Mode II Fracture Toughness of Lushan sandstone

Document Type : Original Article

Authors
Navid Ghanbari 1
Mehdi Hosseini 1
Morteza saghafiyazdi 2
1 Imam Khomeini international university
2 Imam Khomeini International University
Abstract
Rock is a brittle naturally that is sobjected to a variety of environment impacts , such as temperature , confining pressure, humidity and water erosion. Moreover, the effect of temperature on rock fracture in most engineering fields has been considered. These include the determination of the resistance of rock structures to accumulate atomic waste in underground reservoirs, the hydraulic fracture process for extraction of oil and gas from different layers of the earth and analysis of the structures of underground mines. In this paper, we investigate the effect of temperature on mode I and mode II fracture toughness of Lowshan sandstone. To investigate the effect of temperature on mode I and II fracture toughness, was used a Cracked Chevron Notched Brazilian Disc. In this study, the specimens were subjected to a temperature of 20, 60, 100 and 150℃. The results show that, with increasing temperature up to 150℃ , mode I and II fracture toughness of sandstone increases.
Keywords
Temperature
Sandstone
Fracture Toughness
Mode I and Mode II
Subjects
Al-Shayea, N. A., Khan, K.,  Abduljauwad, S. N., 2000. Effects of confining pressure and temperature on mixed-mode (I–II) fracture toughness of a limestone rock, nternational Journal of Rock Mechanics and Mining Sciences, 37(4): 629-643.
Aliha, M. R. M., and Ayatollahi, M. R., 2014. Rock fracture toughness study using cracked chevron notched Brazilian disc specimen under pure modes I and II loading–A statistical approach, Theoretical and Applied Fracture Mechanics, 69:17-25.
Chang, S. H., Lee, C. I.,  Jeon, S., 2002. Measurement of rock fracture toughness under modes I and II and mixed-mode conditions by using disc-type specimens, Engineering geology, 66(1-2): 79-97.
Feng, G., Kang, Y., Meng, T., Hu, Y. Q., Li, X. H., 2017. The influence of temperature on mode I fracture toughness and fracture characteristics of sandstone, Rock Mechanics and Rock Engineering, 50(8): 2007-2019.
Feng, G., Kang, Y., Chen, F., Liu, Y. W.,  Wang, X. C., 2018. The influence of temperatures on mixed-mode (I+ II) and mode-II fracture toughness of sandstone, Engineering Fracture Mechanics, 189: 51-63.
Fowell, R. J., Xu, C., Dowd, P. A., 2006. An update on the fracture toughness testing methods related to the cracked chevron-notched Brazilian disk (CCNBD) specimen, pure and applied geophysics, 163(5-6): 1047-1057.
Franklin, J. A., ZONGQI, S., Atkinson, B. K., Meredith, P. C., Rummel, F., Mueller, W., Nishimatsu Y, Takahahsi H, Costin LS, Ingraffea AR, Bobrov, G. F., 1988. Suggested methds for determining the fracture toughness of rock. International Journal of Rock Mechanics and Mining & Geomechanics Abstracts, 25(2): 71-96.
Funatsu, T., Seto, M., Shimada, H., Matsui, K., Kuruppu, M., 2004. Combined effects of increasing temperature and confining pressure on the fracture toughness of clay bearing rocks, International Journal of Rock Mechanics and Mining Sciences, 41(6): 927-938.
Meredith, P. G., and  Atkinson, B. K., 1985. Fracture toughness and subcritical crack growth during high-temperature tensile deformation of Westerly granite and Black gabbro, Physics of the Earth and Planetary Interiors, 39(1): 33-51.
 Meier, T., 2009. The influence of temperature on Mode II fracture toughness using the Punch-Through Shear with Confining Pressure experiment, in 71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009.

  • Receive Date 12 April 2019
  • Revise Date 25 July 2019
  • Accept Date 24 September 2019