Mode I Fracture Toughness of Rock - Intrinsic Property or Pressure-Dependent?
Ferdinand Stoeckhert, Ruhr University Bochum, Bochum, Germany, Sebastian Brenne, MeSy Solexperts GmbH, Bochum, Germany, Michael Molenda, Geoexperts, Dortmund, Germany and Michael Alber, Ruhr University Bochum, Applied Geology, Bochum, Germany