Recent Submissions

  • Thermo-hydro-mechanical coupled modeling of methane hydrate-bearing sediments: formulation and application 

    de la Fuente Ruiz, María; Vaunat, Jean; Marín Moreno, Héctor (2019-06)
    Article
    Open Access
    We present a fully coupled thermo-hydro-mechanical formulation for the simulation of sediment deformation, fluid and heat transport and fluid/solid phase transformations occurring in methane hydrate geological systems. We ...
  • A stable mesh-independent approach for numerical modelling of structured soils at large strains 

    Monforte Vila, Lluís; Ciantia, Matteo Oryem; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Elsevier, 2019-12)
    Article
    Restricted access - publisher's policy
    We describe the large strain implementation of an elasto-plastic model for structured soils into G-PFEM, a code developed for geotechnical simulations using the Particle Finite Element Method. The constitutive model is ...
  • Induced seismicity in geologic carbon storage 

    Vilarrasa Riaño, Víctor; Carrera Ramírez, Jesús; Olivella Pastallé, Sebastià; Rutqvist, Jonny; Laloui, Lyesse (2019-06)
    Article
    Open Access
    Geologic carbon storage, as well as other geo-energy applications, such as geothermal energy, seasonal natural gas storage and subsurface energy storage imply fluid injection and/or extraction that causes changes in rock ...
  • Swelling behaviour of compacted Maryland clay under different boundary conditions 

    Yuan, Shengyang; Buzzi, Olivier; Liu, Xiaobo; Vaunat, Jean (Thomas Telford, 2019-06)
    Article
    Restricted access - publisher's policy
    This paper presents an experimental study on the swelling response of compacted Maryland clay specimens subjected to hydration under a range of boundary conditions. The research is multi-scale with swelling tests complemented ...
  • Standard penetration testing in a virtual calibration chamber 

    Zhang, Ningning; Arroyo Alvarez de Toledo, Marcos; Ciantia, Matteo Oryem; Gens Solé, Antonio; Butlanska, Joanna (Elsevier, 2019-07)
    Article
    Restricted access - publisher's policy
    The virtual calibration chamber technique, based on the discrete element method, is here applied to study the standard penetration test (SPT). A macro-element approach is used to represent a rod driven with an impact like ...
  • Tensile strength during drying of remoulded and compacted clay: the role of fabric and water retention 

    Trabelsi, Houcem; Romero Morales, Enrique Edgar; Jamei, Mehrez (2018-09)
    Article
    Restricted access - publisher's policy
    The paper presents an experimental investigation on the tensile strength of an unsaturated clay, both in remoulded and compacted states. To complete the experimental study, a new apparatus was designed with the purpose of ...
  • The effect of thermal cycles on limestone mechanical degradation 

    Villarraga Díaz, C. J.; Gasc Barbier, M.; Vaunat, Jean; Darrozes, José (Elsevier, 2018-09)
    Article
    Restricted access - publisher's policy
    This work presents the results of an experimental program performed to study the effect of long series of moderate thermal cycles on the mechanical response of a limestone rock. Samples were exposed to more than 1000 ...
  • Nonlocal plasticity modelling of strain localisation in stiff clays 

    Mánica Malcom, Miguel Ángel; Gens Solé, Antonio; Vaunat, Jean; Ruíz, Daniel F. (Elsevier, 2018-11)
    Article
    Restricted access - publisher's policy
    The paper addresses the numerical simulation of strain localisation in stiff clays that exhibit softening behaviour. An elastoplastic constitutive model developed to incorporate key features of stiff clay behaviour is ...
  • Sphericity measures of sand grains 

    Rorato, Riccardo; Arroyo Alvarez de Toledo, Marcos; Andò, Edward; Gens Solé, Antonio (2019-05)
    Article
    Restricted access - publisher's policy
    The sphericity of a grain should measure the similitude of its shape with that of a sphere. Sphericity is a shape descriptor of long-standing interest for sedimentology. Now it has gained also interest to facilitate discrete ...
  • Low-order stabilized finite element for the full Biot formulation in soil mechanics at finite strain 

    Monforte Vila, Lluís; Navas, Pedro; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (2019-05)
    Article
    Restricted access - publisher's policy
    This article presents a novel finite element formulation for the Biot equation using low-order elements. Additionally, an extra degree of freedom is introduced to treat the volumetric locking steaming from the effective ...
  • Assessment of a high-level spent nuclear fuel disposal model 

    Rodríguez Dono, Alfonso; Olivella Pastallé, Sebastià; Mokni, Nadia (2018-08)
    Article
    Restricted access - publisher's policy
    This paper assesses a model for the full-scale engineered barrier experiment (Febex) in situ test, simulating the disposal of heat-emitting, high-level spent nuclear fuel. The model has been developed using Code_Bright and ...
  • Geomechanical response of fractured reservoirs 

    Zareidarmiyan, Ahmad; Salaridad, Hossein; Vilarrasa Riaño, Víctor; De Simone, Silvia; Olivella Pastallé, Sebastià (2018-12)
    Article
    Open Access
    Geologic carbon storage will most likely be feasible only if carbon dioxide (CO2) is utilized for improved oil recovery (IOR). The majority of carbonate reservoirs that bear hydrocarbons are fractured. Thus, the geomechanical ...

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