Determination of mode I (Kic)fracture toughness of the brittle rock types encountered in the South African mining environment.

[摘要] Drilled specimens from four types of rocks, namelyQuartzite, Norite, Sandstone and Coal encountered in theSouth African mining environment were tested to determinetheir fracture toughness coefficients, usingInternational Society for Rock Mechanics (I...)standards.The tests were conducted using a MTS servo-controlledtesting machine in displacement control mode. (Abbreviation abstract)

[发布机构] University of the Witwatersrand