Thomas A Dewers, Sandia National Laboratories, Nuclear Waste Disposal Research and Analysis, Albuquerque, NM, United States, Jason E Heath, Sandia National Laboratories, Geomechanics, Albuquerque, NM, United States, Richard P Jensen, Sandia National Laboratories, Geomechanics Department, Albuquerque, NM, United States and Kristopher L Kuhlman, Sandia National Laboratories, Applied Systems Analysis & Research, Albuquerque, NM, United States