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dc.contributor.authorPogacnik, Justin
dc.contributor.authorMcNamara, David D.
dc.contributor.authorO’Sullivan, Mike
dc.contributor.authorO’Sullivan, John
dc.identifier.citationPogacnik, Justin, McNamara, David D., O’Sullivan, Mike , & O’Sullivan, John (2014). A Damage Mechanics Approach to Modeling Failure in Greywacke Rock Paper presented at the 36th New Zealand Geothermal Workshop, Auckland.en_IE
dc.description.abstractFracture networks within greywacke basement rocks often control fluid flow in geothermal reservoirs in New Zealand. Thermal, hydrological, chemical, and mechanical processes affect the evolution of these fracture networks. Damage mechanics offers a framework that can be used in the numerical modeling of failure and permeability evolution of geothermal rocks. However, no damage mechanics model has been utilized to describe the complex mechanical behavior of greywacke basement rock. In this work, we apply a damage mechanics THM simulation technique to model stress-strain data for greywacke rock from laboratory uniaxial compression and confined compression tests. Calibration of solid mechanics properties for greywacke rock in THM modeling is a necessary step in the simulation of damage and permeability evolution for heat transport in enhanced geothermal systems.en_IE
dc.publisherNew Zealand Geothermal Workshopen_IE
dc.relation.ispartof36th New Zealand Geothermal Workshopen
dc.subjectFinite Element Methoden_IE
dc.subjectGreywacke rocken_IE
dc.subjectDamage mechanics.en_IE
dc.titleA damage mechanics approach to modeling failure in Greywacke rocken_IE
dc.typeConference Paperen_IE
dc.local.contactDavid Mcnamara, -. - Email:

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