Dynamic Mode II Fracture Toughness of Rocks Subjected to Confining Pressure
Abstract
The dynamic shear failure of rocks with confinements is important in underground rock engineering and it is thus necessary to quantify the dynamic Mode II fracture toughness KIIC of rocks under confining conditions. A punch-through shear (PTS) method is introduced to measure the KIIC of rocks under different confining pressures. The dynamic PTS specimen is a cylinder with two 10-mm-deep circular notches at two ends. A modified split Hopkinson...
Paper Details
Title
Dynamic Mode II Fracture Toughness of Rocks Subjected to Confining Pressure
Published Date
Aug 8, 2019
Volume
53
Issue
2
Pages
569 - 586
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