MEASUREMENT AND DESCRIPTION OF TENSILE FRACTURE IN GRANITE

A description is presented of rock fracture that follows from the interpretations of Mogi (1968), Friedman et al (1972), Hoagland et al (1973), Koayashi and Fourney (1978), and Swanson (1984). Quasi-static conditions at atmospheric pressure, ambient temperature and humidity are discussed. Tests were conducted on double-cantilever-beam and double-edge notched specimens of charcoal and Rockville granites. Ultrasound and acoustic emission techniques were then utilized to estimate the extent and structure of the process zone. The study results are discussed. Relating fault propagation in the earth to the results from this study may offer physical evidence of barriers to fracture.

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  • Accession Number: 00488827
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 31 1989 12:00AM