Listar por autor "Muñoz-Ibáñez, Andrea"
Mostrando ítems 1-16 de 16
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6th International Workshop on Rock Physics: A Coruña, Spain 13 -17 June 2022: Book of Abstracts
Delgado Martín, Jordi; Muñoz-Ibáñez, Andrea; Falcón-Suárez, Ismael Himar (Universidade da Coruña, Servizo de Publicacións, 2022)[Abstract] The 6th International Workshop on Rock Physics (6IWRP) was held A Coruña, Spain, between 13th and 17th of June, 2022. This meeting follows the track of the five successful encounters held in Golden (USA, 2011), ... -
A simple pseudo-Compact tension (pCT) test apparatus to determine the mode I fracture toughness
Li, Yan; Herbón-Penabad, Miguel; Muñoz-Ibáñez, Andrea; Li, Tonglu; Delgado Martín, Jordi (Elsevier, 2024)[Abstract:] We introduce a simplified pseudo-compact tension (pCT) test apparatus, specifically designed to accurately determine the mode I fracture toughness (KIC) under direct tension conditions for rocks and other ... -
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 ... -
Carbon mineralization in mafic formations: fracture topology and hydro-chemo-mechanical coupling
Muñoz-Ibáñez, Andrea; Santamarina, J. Carlos (American Rock Mechanics Association, ARMA, 2024)[Abstract:] Coupled hydro-chemo-mechanical processes affect engineered geosystems, including geothermal energy recovery, long-term nuclear waste disposal, and carbon geological storage. In particular, dissolution-transpo ... -
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 ... -
Experimental Investigation of Mode I Rock Fracture Toughness
Muñoz-Ibáñez, Andrea (2020)[Abstract] Mode I fracture toughness (KIC) is one of the most important parameters in rock fracture mechanics. KIC is an intrinsic material property that represents the ability of a material containing a pre-existing defect ... -
Hydrochemical Evolution of the filling of the Mining Lake of As Pontes (Spain)
Juncosa, Ricardo; Delgado Martín, Jordi; Cereijo Arango, José Luis; Muñoz-Ibáñez, Andrea (Springer Nature, 2019)[Abstract:] The old As Pontes lignite mine is located in northwest Spain, in the Galicia region. Filling of the 547 hm3 pit began at the end of January 2008 through the controlled input of surface water. The filling was ... -
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 ... -
Pure Mode I Fracture Toughness Determination in Rocks Using a Pseudo-Compact Tension (pCT) Test Approach
Muñoz-Ibáñez, Andrea; Delgado Martín, Jordi; Costas, Miguel; Rabuñal, Juan R.; Alvarellos-Iglesias, José; Canal, Jacobo (Springer Nature, 2020-07)[Absctract]: Mode I fracture toughness (KIC) quantifies the ability of a material to withstand crack initiation and propagation due to tensile loads. The International Society for Rock Mechanics (ISRM) has proposed four ... -
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 ...
