“ISRM Suggested Methods for determining the tensile strength and elastic constants of rocks by the direct tension test” and “ISRM Suggested Method for Determining the Rate-Dependent Shear Strength and Mode II Fracture Toughness of Rock Materials Using the Split Hopkinson Pressure Bar” have been published in Rock Mechanics and Rock Engineering.
All the ISRM Suggested Methods are listed on ISRM website,
and available to the ISRM members:
https://isrm.net/page/show/177