MR019
Instabilities and multi-physical processes in geomaterials
Session ID#: 81743
Session Description:
There is an increasing understanding in the scientific community that multi-physical mechanisms are present and fundamental to understand the behavior of Geomaterials at natural conditions. When at depth for example, high temperatures and pressures can activate different coupled mechanisms at the origin of instabilities like strain localization, fracture, etc. In addition, the high velocities reached during seismic slips also involve various mechanisms that are difficult to observe and understand. Finally, operational Geomechanics for energy extraction and storage are increasingly facing challenges that require multi-physical considerations to be solved. Examples include unconventional energy production, Geothermal, CO2 storage and nuclear waste disposal, with particular emphasis required in studying the interaction of a fluid with Geomaterials in chemically active conditions. In this session we aim at convening contributions dealing with all (numerical, theoretical, experimental, in-situ) aspects of geomaterials, emphasizing the role of multi-physical effects in the response and stability of Geomaterials.
Co-Sponsor(s):
Index Terms:
3215 Instability analysis [MATHEMATICAL GEOPHYSICS]
3999 General or miscellaneous [MINERAL PHYSICS]
5199 General or miscellaneous [PHYSICAL PROPERTIES OF ROCKS]
8020 Mechanics, theory, and modeling [STRUCTURAL GEOLOGY]
Primary Convener: Hadrien Rattez, Duke University, Civil and Environnemental Engineering, Durham, NC, United States
Convener: Manolis Veveakis, Duke University, Civil and Environmental Engineering, Durham, United States
Primary Liaison: Hadrien Rattez, Duke University, Civil and Environnemental Engineering, Durham, NC, United States
Want to break into Hard Rock? Ride the lightning! Electropulse stimulation of Granite: Numerical models and experimental results. (487873)
Stuart D Walsh, Monash University, Civil Engineering, Melbourne, Australia, Daniel Vogler, ETH Zurich, Geothermal Energy and Geofluids, Institute of Geophysics, Zurich, Switzerland and Tadeusz Czaszejko, Monash University, Melbourne, Australia
Influence of Pore Fluid Pressure Diffusion on Hydraulic Fracturing. (516838)
Sergey Turuntaev1, Evgeny Zenchenko1, Maria Trimonova1, Petr Zenchenko1, Nikolay Baryshnikov1, Anna Lukina1 and Elena Novikova1,2, (1)Institute of Geosphere Dynamics RAS, Moscow, Russia, (2)Moscow Institute of Physics and Technology, Moscow, Russia
Digital Image Correlation and numerical simulations to study the influence of grain size distribution on strain localization (529195)
Hadrien Rattez1, Alexandre Sac--Morane2, Timothée Klaeylé3, Bolo Mielniczuk4 and Manolis Veveakis4, (1)Duke University, Civil and Environmental Engineering, Durham, NC, United States, (2)École normale supérieure Paris-Saclay, Cachan, France, (3)Ecole Normale Supérieure Paris-Saclay, Cachan, France, (4)Duke University, Civil and Environmental Engineering, Durham, United States
An Energy Based Constitutive framework for Multiphysics Geomechanics (567471)
Mustafa Sari, CSIRO Earth Science Resource Engineering, Perth, WA, Australia, Manolis Veveakis, Duke University, Civil and Environmental Engineering, Durham, United States, Thomas Poulet, CSIRO Earth Science Resource Engineering, Perth, Australia and Sotirios Alevizos, University of New South Wales, School of Minerals and Energy Resources Engineering, Sydney, Australia
Contact Phase-Field Modeling for Chemo-Mechanical Degradation Processes in Geomaterials: Focus on Pressure Solution Creep (577166)
Alexandre Guevel1, Hadrien Rattez2 and Manolis Veveakis2, (1)Duke University, Civil and Environmental Engineering, Durham, NC, United States, (2)Duke University, Civil and Environmental Engineering, Durham, United States
DRYING-CRACKING OF SOILS AS INTER-SCALE INSTABILITY (634322)
Tomasz Hueckel1, Bolo Mielniczuk2, Shu Yang3, Alexendre Guevel2 and Said M. El-Youssoufi4, (1)Duke University, Civil and Environmental Engineering, Durham, NC, United States, (2)Duke University, Civil and Environmental Engineering, Durham, United States, (3)Duke University, Mechanical Engineering and Materials Science, Durham, NC, United States, (4)Universite de Montellier, Laboratoire de Mecanique et Genie Civil, Montpellier, France
