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Bibliografie tematiche / Poromechanical behavior

Letteratura scientifica selezionata sul tema "Poromechanical behavior"

Autore: Grafiati

Pubblicato: 15 giugno 2024

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Articoli di riviste sul tema "Poromechanical behavior":

1

Rafsanjani, Ahmad, Dominique Derome e Jan Carmeliet. "Poromechanical modeling of moisture induced swelling anisotropy in cellular tissues of softwoods". RSC Advances 5, n. 5 (2015): 3560–66. http://dx.doi.org/10.1039/c4ra14074e.

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In cellular tissues of softwoods, the degree of swelling anisotropy in thin-walled earlywood cells is much larger than in bulky latewood cells. This behavior is simulated by means of a double porosity poromechanical model.

2

Kim, Kiseok, e Roman Y. Makhnenko. "Coupling Between Poromechanical Behavior and Fluid Flow in Tight Rock". Transport in Porous Media 135, n. 2 (6 ottobre 2020): 487–512. http://dx.doi.org/10.1007/s11242-020-01484-z.

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3

Kim, Kiseok, e Roman Y. Makhnenko. "Evolution of poroviscoelastic properties of silica-rich rock after CO2 injection". E3S Web of Conferences 205 (2020): 08007. http://dx.doi.org/10.1051/e3sconf/202020508007.

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Injection of CO2 into the subsurface requires consideration of the poromechanical behavior of reservoir rock saturated with aqueous fluid. The material response is usually assumed to be elastic, to avoid consideration of induced seismicity, or viscoelastic, if long-term deformations are needed to be taken into the account. Both elastic and viscous behavior may be influenced by the chemical reactions that are caused by the acidic mixture formed as high-pressure CO2 enters the pore space saturated with aqueous fluid. In this study, we conduct laboratory experiments on a fluid-saturated porous rock - Berea sandstone, and evaluate its poromechanical properties. Subsequently, the specimens are treated with liquid CO2 for 21 days and the corresponding variations in their properties are determined. The constitutive model considering the elastic time-dependent behavior of porous rock is validated by comparing the measured and predicted specimen deformation. Presented data indicate that the effect of CO2 injection on the long-term response is more significant compared to the short-term response. It is suggested for the constitutive models that predict long-term reservoir behavior during CO2 storage to include not only the poroelastic response and its change due to treatment, but also the time-dependent deformation and its evolution caused by the changes in chemistry of the pore fluid.

4

Gmira, A. "Microscopic physical basis of the poromechanical behavior of cement-based materials". Materials and Structures 37, n. 265 (27 novembre 2003): 3–14. http://dx.doi.org/10.1617/14101.

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5

Zeng, Qiang, Teddy Fen-Chong, Patrick Dangla e Kefei Li. "A study of freezing behavior of cementitious materials by poromechanical approach". International Journal of Solids and Structures 48, n. 22-23 (novembre 2011): 3267–73. http://dx.doi.org/10.1016/j.ijsolstr.2011.07.018.

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6

Hu, Da Wei, Fan Zhang e Jian Fu Shao. "Experimental study of poromechanical behavior of saturated claystone under triaxial compression". Acta Geotechnica 9, n. 2 (4 luglio 2013): 207–14. http://dx.doi.org/10.1007/s11440-013-0259-y.

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7

Gmira, A., M. Zabat, R. J. M. Pellenq e H. Van Damme. "Microscopic physical basis of the poromechanical behavior of cement-based materials". Materials and Structures 37, n. 1 (gennaio 2004): 3–14. http://dx.doi.org/10.1007/bf02481622.

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8

Abbasion, Saeed, Jan Carmeliet, Marjan Sedighi Gilani, Peter Vontobel e Dominique Derome. "A hygrothermo-mechanical model for wood: part A. Poroelastic formulation and validation with neutron imaging". Holzforschung 69, n. 7 (1 settembre 2015): 825–37. http://dx.doi.org/10.1515/hf-2014-0189.

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Abstract The correct prediction of the behavior of wood components undergoing environmental loading or industrial process requires that the hygrothermal and mechanical (HTM) behavior of wood is considered in a coupled manner. A fully coupled poromechanical approach is proposed and validated with neutron imaging measurements of moist wood specimens exposed to high temperature. This paper demonstrates that a coupled HTM approach adequately captures the variations of temperature, moisture content, and dimensions that result in a moist wood sample exposed to one-side heating.

9

Abbasion, Saeed, Peter Moonen, Jan Carmeliet e Dominique Derome. "A hygrothermo-mechanical model for wood: Part B. Parametric studies and application to wood welding". Holzforschung 69, n. 7 (1 settembre 2015): 839–49. http://dx.doi.org/10.1515/hf-2014-0190.

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Abstract The correct prediction of the behavior of wood components undergoing environmental loading or industrial process requires that the hygric, thermal and mechanical (HTM) behavior of wood are considered in a coupled manner. A fully coupled poromechanical approach has been used to perform a parametric study on wood HTM behavior, and the results have been validated with neutron imaging measurements on a moist wood specimen exposed to high temperature. Further, HTM behavior of wood during welding has been simulated by the model. For such a simulation, proper material properties are needed, as some of them, for example thermal conductivity, have a significant influence on the local and temporal behavior of the material.

10

Loyola, Ana Carolina, Manoel Porfírio Cordão Neto e Jean-Michel Pereira. "An open-source numerical laboratory to assess the poromechanical behavior of fractured rocks". Computers and Geotechnics 168 (aprile 2024): 106127. http://dx.doi.org/10.1016/j.compgeo.2024.106127.

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Più fonti

Tesi sul tema "Poromechanical behavior":

1

Hassanzadegan, Alireza [Verfasser], e Uwe [Akademischer Betreuer] Tröger. "Thermomechanical and poromechanical behavior of Flechtinger sandstone / Alireza Hassanzadegan. Betreuer: Uwe Tröger". Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2013. http://d-nb.info/1033891371/34.

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2

Zeng, Qiang. "Poromechanical behavior of cement-based materials subjected to freeze-thaw actions with salts : modeling and experiments". Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST1131/document.

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Les matériaux cimentaires peuvent se détériorer grandement lorsqu'ils sont soumis à des cycles de gel/dégel avec ou sans sels de déverglaçage. Ceci peut porter atteinte à la durabilité à long terme des bétons/mortiers dans les régions aux hivers froids. Laissant de côté les processus d'endommagement et de rupture mécanique à l'oeuvre dans de tels problèmes, ce mémoire de thèse est consacré aux phénomènes physiques et thermo-mécaniques accompagnant la solidification de l'eau dans des solides poreux cohésifs, avec une attention particulière aux «propriétés matériau» issues de l'hydratation du ciment et de l'évolution de la microstructure. Ce travail reprend la poromécanique des milieux poreux partiellement gelés telle que développée par Olivier Coussy, tout en lui adjoignant une analyse de l'effet de la fin de la surfusion (en volume, hors contribution capillaire) et de la présence de sels dans le liquide saturant l'espace poreux. Nous avons mesuré la température de fin de surfusion en fonction de la concentration en sel. Ceci nous permet ensuite de calculer l'angle de contact entre la glace et les parois des pores dans le cadre classique de la nucléation hétérogène : on trouve que cet angle diminue avec la concentration en sel. Nous montrons que la dilatation instantanée consécutive à la fin de la surfusion dépend de la structure poreuse puisque cette dernière détermine la teneur en glace dans l'espace poreux. À l'aide de la distribution de tailles de pores estimée par porosimétrie par intrusion de mercure, nous estimons le degré de saturation en glace en fonction de la température et de la concentration initiale en sel via la relation de Gibbs-Thomson. Nous avons mesuré la déformation d'échantilllons de pâte de ciment saturées. L'analyse poromécanique montre que la déformation dépend de la concentration initiale en sel et de la structure poreuse des pâtes de ciment. En utilisant la même approche expérimentale sur des pâtes de ciment sèches, nous trouvons que la porosité (avec ou sans vide d'air entraîné) influence significativement le coefficient d'expansion thermique du matériau. En ce qui concerne les pâtes de ciment saturées, les mesures expérimentales et l'approche poromécanique en condition drainée ou non-drainée montrent que le degré de saturation initiale en liquide des vides d'air entraîné a un impact important sur la déformation de l'échantillon avec la température
When subject to freezing/thawing cycles with or without deicing salt, cement-based materials can suffer severe damage, which raises the long term sustainability problem of concrete/mortar in cold regions. Leaving aside the precise fracture mechanics and damage processes in this kind of problem, this PhD deals with the physical and thermomechanical phenomena undergone by cohesive porous solids under freezing, with particular attention to the material properties arising from cement hydration and microstructure development. The present work revisits the poromechanics of freezing porous materials developed by Olivier Coussy. This gives the opportunity to add the effect of the bulk supercooling and of salt in the liquid saturating the porous space.We measured the relation between depressed temperature at the end of bulk supercooling and salt concentration. We then obtained that the contact angle between ice and pore wall by heterogeneous nucleation decreases as salt concentration increases. We showed that the instantaneous dilation at the end of bulk supercooling is related to the pore structure because the latter determines the in-pore ice content. Using the pore size distribution measured by mercury intrusion porosimetry, we estimated the ice saturation degree with temperature and NaCl solution at different concentration through the Gibbs-Thomson equation. We measured the deformation of saturated cement pastes. The poromechanical analyses show that the strains depend on the initial salt concentration and pore structure of our cement pastes. By the same experimental approach on dried cement pastes, we concluded that the porosity (with or without air voids) has significant influence on the thermal expansion coefficient of our cement pastes. We also performed measurements on the deformation of saturated air entrained cement pastes. The results obtained by both experiments and poromechanical analyses under drained and undrained conditions showed that the initial saturation degree in air-voids has significant influence on the deformation curves with temperature

3

Zhang, Yuhao. "Etude expérimentale et modélisation du comportement poromécanique d'une roche argileuse". Electronic Thesis or Diss., Université de Lille (2022-....), 2023. https://pepite-depot.univ-lille.fr/ToutIDP/EDENGSYS/2023/2023ULILN061.pdf.

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Le présent travail est réalisé dans le cadre des études menées pour le stockage géologique des déchets radioactifs. L'objectif principal est de compléter les travaux précédents sur la caractérisation du comportement poromécanique de l'argilite Callovo-Oxfordien (COx), envisagée comme la barrière géologique en France. Le travail est composé de deux parties.Dans la première partie, une étude expérimentale est réalisée. Des essais sur échantillons saturés sont effectués pour l'estimation du coefficient de Biot sous compression hydrostatique d'une part, et de son évolution pendant le chargement déviatorique d'autres. Ensuite, des essais en conditions non-drainées sont effectués. Deux chemins de chargement sont considérés : compression triaxiale à confinement constant et extension axiale à contrainte moyenne constante. Nous avons notamment étudié la variation de la pression interstitielle en fonction du chargement déviatorique et son influence sur la résistance à la rupture du matériau.La deuxième partie est consacrée à la modélisation numérique. Un nouveau critère de plasticité est proposé en considérant l'effet de l'angle de Lode. La validité de la contrainte effective de Terzaghi dans la déformation plastique et le critère de rupture est étudiée. En se basant sur ce critère, un modèle plastique est formulé. Les paramètres associés sont identifiés. Le modèle proposé est utilisé pour simuler plusieurs séries d'essais en laboratoire
This work has been carried out in the context of studies for the geological disposal of radioactive waste. The main objective is to complete previous works on the characterization of poromechanical behavior of the Callovo-Oxfordian (COx) clay, which is envisaged as the geological barrier in France. The work is composed of two parts.In the first part, an experimental study is carried out. Laboratory tests on saturated samples are carried out to estimate Biot's coefficient under hydrostatic compression on the one hand, and its evolution during deviatoric loading on the other. Tests were then conducted under undrained conditions. Two loading paths were considered: triaxial compression with constant confining pressure and axial extension with constant mean stress. In particular, we studied the variation in pore pressure as a function of deviatoric loading and its influence on the material's resistance to fracture.The second part is devoted to numerical modelling. A new plasticity criterion is proposed, taking into account the effect of the Lode angle. The validity of the effective Terzaghi stress in the plastic deformation and fracture criterion is studied. Based on this criterion, a plastic model is formulated. The associated parameters are identified. The proposed model is used to simulate several series of laboratory tests

Capitoli di libri sul tema "Poromechanical behavior":

1

Shao, Jian-Fu, e Albert Giraud. "Poromechanical Behavior of Saturated Cohesive Rocks". In Constitutive Modeling of Soils and Rocks, 377–404. London, UK: ISTE, 2013. http://dx.doi.org/10.1002/9780470611081.ch10.

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2

Vandamme, Matthieu, Patrick Dangla, Saeid Nikoosokhan e Laurent Brochard. "Modeling the Poromechanical Behavior of Microporousand Mesoporous Solids: Application to Coal". In Nonlinear Elasticity and Hysteresis, 105–26. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527665068.ch5.

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3

Chikhaoui, Mohamed, e Ammar Nechnech. "Poromechanical Behavior Analysis of an Underground Cavity Below Runways Under the Dynamic Cyclic Action of Landing Gear on Complex Geotechnical Conditions". In Sustainable Civil Infrastructures, 71–80. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01884-9_6.

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4

Grgic, D., D. Hoxha e F. Homand. "Poromechanical behavior of ferriferous rocks". In Poromechanics II, 211–16. CRC Press, 2020. http://dx.doi.org/10.1201/9781003078807-32.

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5

Sheahan, T. C., e V. N. Kaliakin. "Integrating micromechanics in modeling relaxation behavior of cohesive soils". In Poromechanics, 147–52. CRC Press, 2020. http://dx.doi.org/10.1201/9781003078487-26.

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6

Cividini, Annamaria, e Donatella Sterpi. "Two-phase behaviour of a saturated strain softening soil". In Poromechanics, 371–76. CRC Press, 2020. http://dx.doi.org/10.1201/9781003078487-63.

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7

Dormieux, L., S. Maghous, D. Kondo e J. F. Shao. "Macroscopic poroelastic behavior of a jointed rock". In Poromechanics II, 179–83. CRC Press, 2020. http://dx.doi.org/10.1201/9781003078807-27.

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8

Hoxha, D., F. Homand, A. Giraud, C. Auvray e K. Su. "Poromechanical behaviour of Meuse-Haute Marne argillite". In Eurock 2006: Multiphysics Coupling and Long Term Behaviour in Rock Mechanics, 121–26. Taylor & Francis, 2006. http://dx.doi.org/10.1201/9781439833469.ch16.

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9

Chateau, X., e L. Dormieux. "A micromechanical approach to the behaviour of unsaturated porous media". In Poromechanics, 47–52. CRC Press, 2020. http://dx.doi.org/10.1201/9781003078487-9.

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10

Guiducci, C., A. Pellegrino, J. P. Radu, F. Collin e R. Charlier. "Hydro-mechanical behavior of fractures: 2D, F.E.M. modeling". In Poromechanics II, 217–23. CRC Press, 2020. http://dx.doi.org/10.1201/9781003078807-33.

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Atti di convegni sul tema "Poromechanical behavior":

1

Vincke, O., P. Longuemare, M. Bouteca e J. P. Deflandre. "Investigation of the Poromechanical Behavior of Shales in the Elastic Domain". In SPE/ISRM Rock Mechanics in Petroleum Engineering. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/47589-ms.

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2

Derome, Dominique, Alessandra Patera, Ahmad Rafsanjani, Saeed Abbasion e Jan Carmeliet. "The Role of Water in the Hygro-Thermo-Mechanical Behavior of Wood". In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65101.

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Abstract (sommario):

Wood, due to its biological origin, has the capacity to interact with water. Sorption/desorption of moisture is accompanied with swelling/shrinkage and softening/hardening of its stiffness. The correct prediction of the behavior of wood components undergoing environmental loading or industrial process requires that the hygric, thermal and mechanical (HTM) behavior of wood are considered in a coupled manner. In addition, we propose a comprehensive framework using a fully coupled poromechanical approach, where its multiscale implementation provides the capacity to take into account, directly, the exact geometry of wood cellular structure, using computational homogenization. A hierarchical model is used to take into account the subcellular composite-like organization of the material. Such advanced modeling requires high resolution experimental data for the appropriate determination of inputs and for its validation.

3

Kim, Kiseok, e D. Nicolas Espinoza. "Determination of Biot Coefficient for Low-Permeability Rocks Accounting for Undrained Loading". In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0694.

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ABSTRACT The determination of poroelastic properties for low-permeability porous media (k < 10−18 m2) is often elusive because of long periods required to dissipate or equilibrate pore pressure in tested samples. Poroelastic properties, such as the Biot coefficient, play a key role in determining the effective stresses in-situ and changes due to thermal, hydraulic and mechanical loadings. This paper presents a method to determine the Biot coefficient of low-permeability porous media accounting for undrained loading. We conducted experiments and numerical simulations to show the effectiveness of the method and ran parametric studies by changing the loading rate, equilibrium time, and permeability. The results show that the Biot coefficient, drained bulk modulus and permeability can be determined from a single partially undrained experiment as long as undrained response is considered in the data analysis. This method is advantageous not only because it is faster than previous methods but also because it can determine permeability indirectly. Accurate determination of these properties is critical to predict the response of low-permeability materials such as seal rocks for carbon geological storage among other applications. INTRODUCTION Accurately characterizing the poromechanical response of geological formations is critical for the success of subsurface energy projects, such as oil and gas recovery, geologic carbon and hydrogen storage, geothermal energy, and nuclear waste geological storage among others. Low permeability formations (k < 10−18 m2) play a vital role in many cases as sealing layers or containment barriers. Low-permeability formations exhibit a strong hydromechanical coupling, hence, confidently predicting their poromechanical behavior is critical (Bachu 2008; Makhnenko et al. 2017; Espinoza and Santamarina 2017; Zheng et al. 2022). However, accurate measurement of poromechanical properties can be challenging for materials with ultra-low hydraulic diffusivity due to the long period needed to achieve pore pressure equilibrium when external loadings are applied (Kim and Makhnenko 2020).

4

Jammoul, Mohamad, e Mary Wheeler. "A Phase-Field Based Approach for Modeling the Cementation and Shear Slip of Fracture Networks". In SPE Reservoir Simulation Conference. SPE, 2021. http://dx.doi.org/10.2118/203906-ms.

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Abstract Modeling the geomechanical deformations of fracture networks has become an integral part of designing enhanced geothermal systems and recovery mechanisms for unconventional reservoirs. Stress changes in the reservoir can cause large variations in the apertures of fractures resulting in drastic changes in their transmissivities. At the same time, sustained high injection pressures can induce shear slipping along existing fractures and faults and trigger seismic activity. In this work, a novel approach is introduced for the simulation of cementation and shear slip of fractures on very general semi-structured grids. Natural fracture networks are represented in large scale reservoirs using the phase-field approach. The fluid flow through fractures is simulated on spatially non-conforming grids using the enhanced velocity mixed finite element method. The geomechanics equations are discretized using the continuous Galerkin finite element method. The single-phase flow and mechanics equations are decoupled using the fixed stress iterative scheme. The model can predict shear slipping and opening/closure of fractures due to induced stresses and poromechanical effects. Two synthetic examples are presented to model the effects of injection/production processes on the cementation and shear slip of fractures. The impact of the fractures' orientation and their connectivity on the hydromechanical response of the reservoir is also considered. The examples illustrate the strong impact of the dynamic behavior of fractures and the accompanying poroelastic deformations on the safety and productivity of subsurface projects.

5

Han, Z., e R. M. Younis. "Investigating the Influence of Pressure Distribution on Nucleation Size in Induced Seismic Events Using a Coupled Dynamic Reservoir Simulation with Adaptive Time-Step". In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0938.

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ABSTRACT Injection-induced seismicity poses a significant technical and socio-political risk to subsurface storage and resource engineering systems. A key challenge is to understand the nucleation process bridged between the dynamic rupture and flow-driven poromechanical deformation (quasi-static) and ensure the ability to capture the onset of ruptures. To address this challenge, a hybrid time-step controller was developed in this research. The controller integrates local discretization error and Coulomb friction and is capable of capturing pre-seismic triggering, co-seismic spontaneous rupture, and arrest. Importantly, the controller operates solely on the solution state, eliminating the need for theoretical indicators that may fail to capture transitions under heterogeneous pressure distribution. The controller was implemented using an A Posteriori approach within a mixed discretization scheme that combines the extended finite element method (XFEM) for poromechanics and the embedded discrete fracture model (EDFM) for multiphase flow, incorporating implicit Newmark scheme for inertial mechanics and a Lagrange Multiplier approach with a slip-weakening friction model to enforce fracture contact constraints. The results demonstrate that the distribution of the pore pressure profiles along the fault may have an effect on the nucleation size. Overall, this study provides insight into the nucleation process and offers a powerful tool for managing the risk of injection-induced seismicity in subsurface storage and resource engineering systems. INTRODUCTION Induced seismicity is a phenomenon that has become increasingly relevant as human activities such as fracking and wastewater disposal have been linked to earthquakes. One knowledge gap in the understanding of this process pertains to the critical size of a ruptured sliding patch along a fault patch beyond which, spontaneous sliding is to occur (producing considerable seismic events). An understanding of the nucleation process is essential to predicting and managing injection processes. Early laboratory studies of stick-slip shear failures suggest that the nucleation process involves two phases. The first stage entails a slow and longer-term propagation of slip. This may be followed by a sudden transition to the second phase with shorter periods of accelerated slip, where the sliding patch size and velocity accelerate very rapidly. The physical properties of the fault, such as its frictional behavior, and the normal stress acting on it are known to strongly influence this nucleation process (Dieterich, 1978; Okubo and Dieterich, 1984; Ohnaka and Shen, 1999). Reported theoretical and numerical efforts aim to quantitatively understand the nucleation process under idealized conditions. A particular focus has been on deriving an instability criterion for either slip-weakening or rate-and-state friction models (e.g., Campillo and Ionescu (1997); Favreau et al. (1999); Uenishi and Rice (2003); Rubin and Ampuero (2005); Ampuero and Rubin (2008); Kaneko and Ampuero (2011); Latour et al. (2013); Gvirtzman and Fineberg (2021)). According to the driving mechanisms behind the growth of the patch, the derivation of this instability criterion can be divided into two major classes: one is based on linear stability analysis where a stress criterion is applied because the yielding of the contact surface pre-dominates, and another is based on Griffth's criterion with energy consideration when the fracture mechanics takes over. However, the theoretical nucleation size assumes uniform stress distributions and only considers mechanics. Under realistic injection conditions, the fluid pressure field is spatially and temporally variable. This work explores the influence of such complexity on the nucleation process.

6

Hettema, M. H. H., e C. J. de Pater. "The Poromechanical Behaviour of Felser Sandstone: Stress- and Temperature-Dependent". In SPE/ISRM Rock Mechanics in Petroleum Engineering. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/47270-ms.

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Ma, Boning, Balasingam Muhunthan e Xinyu Xie. "Modeling Effects of Clay Structure on Consolidation Behavior". In Fifth Biot Conference on Poromechanics. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784412992.104.

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Chikhi, A., A. Belhamri e P. Glouannec. "Hygro-Thermal Behavior of Cement Mortar and Polystyrene Concrete". In Sixth Biot Conference on Poromechanics. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480779.079.

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9

Li, Weixin, Faysal Bousikhane, J. William Carey e Gianluca Cusatis. "Computational Analysis of the Fracture-Permeability Behavior of Shale". In Sixth Biot Conference on Poromechanics. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480779.149.

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Gilbert, R. P., A. Panchenko e A. Vasilic. "Biphasic Acoustic Behavior of a Non-periodic Porous Medium". In Fifth Biot Conference on Poromechanics. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784412992.234.

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