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Simple method of measuring rock fracture toughness using the Brazilian test method

Conference Paper


Abstract


  • There are a number of methods available for the determination of the fracture toughness of rock. Some of the most recognized methods include the hollow pressured cylinder, the short-rod, the chevron - edge-notched round bar in bending and the disc-shaped compact specimen. Most of these tests are difficult and expensive to conduct. In this paper the simple Brazilian testing of discs for tensile strength has been used to determine their fracture toughness. Tests were conducted on six different rock types and the values of the fracture toughness obtained for each type are in close agreement with the results of the well recognized the chevron edged types. Details of the tests, and analytical validation of the technique, are presented.

Publication Date


  • 1992

Citation


  • Guo, H., & Aziz, N. I. (1992). Simple method of measuring rock fracture toughness using the Brazilian test method. In Unknown Conference (pp. 600-611).

Scopus Eid


  • 2-s2.0-0027092119

Web Of Science Accession Number


Start Page


  • 600

End Page


  • 611

Abstract


  • There are a number of methods available for the determination of the fracture toughness of rock. Some of the most recognized methods include the hollow pressured cylinder, the short-rod, the chevron - edge-notched round bar in bending and the disc-shaped compact specimen. Most of these tests are difficult and expensive to conduct. In this paper the simple Brazilian testing of discs for tensile strength has been used to determine their fracture toughness. Tests were conducted on six different rock types and the values of the fracture toughness obtained for each type are in close agreement with the results of the well recognized the chevron edged types. Details of the tests, and analytical validation of the technique, are presented.

Publication Date


  • 1992

Citation


  • Guo, H., & Aziz, N. I. (1992). Simple method of measuring rock fracture toughness using the Brazilian test method. In Unknown Conference (pp. 600-611).

Scopus Eid


  • 2-s2.0-0027092119

Web Of Science Accession Number


Start Page


  • 600

End Page


  • 611