Listar Enxeñaría da Auga e do Medio Ambiente (GEAMA) por autor "Muñoz-Ibáñez, Andrea"
Mostrando ítems 1-10 de 10
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Analysis of the reduction processes at the bottom of Lake Meirama: a singular case of lake formation
Juncosa, Ricardo; Delgado Martín, Jordi; Cereijo Arango, José Luis; Muñoz-Ibáñez, Andrea (Springer, 2023)[Abstract:] The formation of natural lakes is a process that takes place over thousands of years, although the volumetric formation depends on hydrological and climatological phenomena, reaching a stationary hydraulic ... -
Anisotropic deformability and strength of slate from NW-Spain
Alejano, Leandro R.; González Fernández, Manuel Alejandro; Estévez-Ventosa, Xian; Song, Fei; Delgado Martín, Jordi; Muñoz-Ibáñez, Andrea; González-Molano, Nubia; Alvarellos-Iglesias, José (Elsevier, 2021)[Abstract:] Slates are metamorphic rocks characterized by the pervasive occurrence of cleavage or foliation producing a highly anisotropic mechanical behavior characterized by fissility. Deformability and strength of these ... -
CO2-Brine Substitution Effects on Ultrasonic Wave Propagation Through Sandstone With Oblique Fractures
Falcon-Suarez, Ismael Himar; Papageorgiou, Giorgos; Jin, Zhaoyu; Muñoz-Ibáñez, Andrea; Chapman, Mark; Best, Angus I. (American Geophysical Union AGU, 2020)[Abstract:] Seismic monitoring of injected CO2 plumes in fractured storage reservoirs relies on accurate knowledge of the physical mechanisms governing elastic wave propagation, as described by appropriate, validated rock ... -
Experimental analysis of the pseudo-compact tension (pCT) testing configuration using two alternative sample geometries
Herbón-Penabad, Miguel; Muñoz-Ibáñez, Andrea; Delgado Martín, Jordi (IOP Publishing, 2021)[Abstract:] The pseudo-compact tension (pCT) method recently proposed by Muñoz-Ibáñez et al. (2020) is a satisfactory approach to measure mode I fracture toughness (KIC) in rocks and other materials using disc-shaped samples ... -
Experimental Device for the Determination of Fracture Toughness at High Pressure
Muñoz-Ibáñez, Andrea; Herbón-Penabad, Miguel; Delgado Martín, Jordi (IOP Publishing, 2023)[Abstract:] Mode I fracture toughness (KIC) is a relevant property in many applications involving rock mechanics. However, the conventional methods for its determination only consider ambient pressure conditions. Although ... -
Hydrofracturing tests on granite samples using a true triaxial device equipped with acoustic emission sensors
Herbón-Penabad, Miguel; Muñoz-Ibáñez, Andrea; Delgado Martín, Jordi; González-Molano, Nubia; Alvarellos-Iglesias, José; Canal, Jacobo (IOP Publishing Ltd, 2021)[Abstract:] We present a series of tests performed on granite samples using a true triaxial device designed and built at the Rock Mechanics Laboratory (University of A Coruña). The experiments were performed using cubic ... -
Hydrostatic, strike-slip and normal stress true triaxial hydrofracturing testing of Blanco Mera Granite: breakdown pressure and tensile strength assessment
Muñoz-Ibáñez, Andrea; Herbón-Penabad, Miguel; Delgado Martín, Jordi; Alejano, Leandro R.; Alvarellos-Iglesias, José; Canal, Jacobo (Springer, 2023)[Abstract:] We have designed and built a versatile testing device to perform hydraulic fracturing experiments under true triaxial conditions. The device, based on a stiff biaxial frame that can be installed in a servocontrolled ... -
Photoelastic Stress Analysis of Mode I Fracture Toughness Tests Using PMMA Samples
Muñoz-Ibáñez, Andrea; Herbón-Penabad, Miguel; Delgado Martín, Jordi (IOP Publishing Ltd, 2021)[Abstract] Rocks are usually inhomogeneous and anisotropic materials. The presence of foliation planes, grain boundaries or even microcracks may alter the stress distribution. In order to identify whether unusual behaviours ... -
Size Effect and Other Effects on Mode I Fracture Toughness Using Two Testing Methods
Muñoz-Ibáñez, Andrea; Delgado Martín, Jordi; Juncosa, Ricardo (Elsevier, 2021)[Abstract] Mode I fracture toughness (KIC) is an intrinsic material property that quantifies its resistance to tensile fracture propagation. The International Society for Rock Mechanics has endorsed four methods to determine ... -
Size effects on the tensile strength and fracture toughness of granitic rock in different tests
Pérez-Rey, Ignacio; Muñoz-Ibáñez, Andrea; González-Fernández, Manuel A.; Muñiz-Menéndez, Mauro; Herbón-Penabad, Miguel; Estévez-Ventosa, Xian; Delgado Martín, Jordi; Alejano, Leandro R. (Elsevier, 2023)[Abstract:] This study investigates the tensile failure mechanisms in granitic rock samples at different scales by means of different types of tests. To do that, we have selected a granitic rock type and obtained samples ...