Fracture toughness testing of rock at elevated temperatures and pressures

M. Seto, M. D. Kuruppu, Takahiro Funatsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Fracture toughness tests were done on Kimachi sandstone and Inada granite using two types of core based specimens. In addition to the measurement at ambient conditions, fracture toughness was also determined at elevated temperatures, confining pressures and wet conditions. Elevated temperatures appear to make the rock tougher causing the fracture toughness to increase substantially. Increasing confining pressure also increases the fracture toughness as the pressure causes closure of some pre-existing microcracks and discontinuities. Water content was found to cause reduction of fracture toughness particularly in sandstone. This effect is supposed to be due to the increase in pore pressure.

Original languageEnglish
Title of host publicationDC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)
Editors Elsworth, Tinucci, Heasley
PublisherAmerican Rock Mechanics Association (ARMA)
Pages745-751
Number of pages7
ISBN (Print)9026518277, 9789026518270
Publication statusPublished - Jan 1 2001
Event38th U.S. Symposium on Rock Mechanics, DC Rocks 2001 - Washington, United States
Duration: Jul 7 2001Jul 10 2001

Publication series

NameDC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)

Other

Other38th U.S. Symposium on Rock Mechanics, DC Rocks 2001
CountryUnited States
CityWashington
Period7/7/017/10/01

Fingerprint

fracture toughness
fracture strength
Fracture toughness
Rocks
rocks
Testing
rock
sandstones
confining pressure
Sandstone
confining
temperature
Temperature
sandstone
causes
microcracks
microcrack
Pore pressure
Microcracks
granite

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

Cite this

Seto, M., Kuruppu, M. D., & Funatsu, T. (2001). Fracture toughness testing of rock at elevated temperatures and pressures. In Elsworth, Tinucci, & Heasley (Eds.), DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS) (pp. 745-751). (DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)). American Rock Mechanics Association (ARMA).

Fracture toughness testing of rock at elevated temperatures and pressures. / Seto, M.; Kuruppu, M. D.; Funatsu, Takahiro.

DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS). ed. / Elsworth; Tinucci; Heasley. American Rock Mechanics Association (ARMA), 2001. p. 745-751 (DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Seto, M, Kuruppu, MD & Funatsu, T 2001, Fracture toughness testing of rock at elevated temperatures and pressures. in Elsworth, Tinucci & Heasley (eds), DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS). DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS), American Rock Mechanics Association (ARMA), pp. 745-751, 38th U.S. Symposium on Rock Mechanics, DC Rocks 2001, Washington, United States, 7/7/01.
Seto M, Kuruppu MD, Funatsu T. Fracture toughness testing of rock at elevated temperatures and pressures. In Elsworth, Tinucci, Heasley, editors, DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS). American Rock Mechanics Association (ARMA). 2001. p. 745-751. (DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)).
Seto, M. ; Kuruppu, M. D. ; Funatsu, Takahiro. / Fracture toughness testing of rock at elevated temperatures and pressures. DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS). editor / Elsworth ; Tinucci ; Heasley. American Rock Mechanics Association (ARMA), 2001. pp. 745-751 (DC Rocks 2001 - 38th U.S. Symposium on Rock Mechanics (USRMS)).
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