Ara es mostren els items 1-20 de 33

    • A new approach to evaluate the soil disturbance due to tube sampling 

      Gens Solé, Antonio; Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Carbonell Puigbó, Josep Maria (2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Disturbance of specimens recovered by tube sampling from boreholes is an enduring relevant problem in geotechnical engineering. Practice has evolved slowly in this area, partly because the main research method applied, ...
    • A nonlocal elasto-plastic model for structured soils at large strains for the particle finite element method 

      Monforte Vila, Lluís; Ciantia, Matteo Oryem; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Springer, 2021)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This work presents a robust and mesh-independent implementation of an elasto-plastic constitutive model at large strains, appropriate for structured soils, into a Particle Finite Element code specially developed for ...
    • A relation between undrained CPTu results and the state parameter for liquefiable soils 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Canadian Science Publishing, 2023-11)
      Article
      Accés obert
      This paper presents a new interpretation procedure to estimate the initial state parameter from cone penetration testing (CPTu) in undrained conditions based on the results from a comprehensive set of numerical simulations ...
    • 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
      Accés obert
      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 ...
    • A subloading surface clay and sand model 

      Pinedo Vilcahuamán, Paul José; Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (2023)
      Text en actes de congrés
      Accés obert
      The mechanical response of natural soils is characterized by a narrow elastic domain, a smooth transition between elastic to elasto-plastic regime, and hysteretic behaviour during cyclic loading. These realistic features ...
    • An unconditionally stable explicit finite element algorithm for coupled hydromechanical problems of soil mechanics in pseudo-static conditions 

      Monforte Vila, Lluís; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (2022-11)
      Article
      Accés obert
      In this article, we present a novel explicit time-integration algorithm for the coupled hydromechanical soil mechanics problems in a pseudo-static regime. After introducing the finite element discretization, the semidiscrete ...
    • Analysis of cone penetration in brittle liquefiable soils 

      Monforte Vila, Lluís; Gens Solé, Antonio; Arroyo Alvarez de Toledo, Marcos; Mánica Malcom, Miguel Ángel; Carbonell Puigbó, Josep Maria (Elsevier, 2021-06)
      Article
      Accés obert
      The paper presents a comprehensive set of simulations of the cone penetration test with pore pressure measurements (CPTu test) in brittle, potentially liquefiable, soils using advanced numerical techniques. The large ...
    • Application of a critical state model to the Merriespruit tailings dam failure 

      Mánica Malcom, Miguel Ánge; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Monforte Vila, Lluís (2022-04)
      Article
      Accés obert
      The use of stress–deformation analyses to evaluate the characteristics of possible static liquefaction events is rapidly becoming the norm for tailings dams exposed to such risk. Ideally, those analyses should be based on ...
    • Coupled effective stress analysis of insertion problems in geotechnics with the Particle Finite Element Method 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Carbonell Puigbó, Josep Maria; Gens Solé, Antonio (Elsevier, 2018-09)
      Article
      Accés obert
      This paper describes a computational framework for the numerical analysis of quasi-static soil-structure insertion problems in water saturated media. The Particle Finite Element Method is used to solve the linear momentum ...
    • Coupled hydromechanical modelling of cone penetration in layered liquefiable soils 

      Boschi, Katia; Arroyo Alvarez de Toledo, Marcos; Monforte Vila, Lluís; Carbonell Puigbó, Josep Maria; Gens Solé, Antonio (2024-02)
      Article
      Accés restringit per política de l'editorial
      Soil layering modifies cone penetration measurements when the cone is close to layer boundaries. Transition zone and thin-layer effects appear, complicating interpretation. To help identify the mechanisms underlying ...
    • Enhanced cone penetration test interpretation with the Particle Finite Element Method (PFEM) 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Carbonell Puigbó, Josep Maria (International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE), 2019)
      Text en actes de congrés
      Accés obert
      The paper presents an enhanced interpretation of the cone penetration test based on numerical analysis performed using the Particle Finite Element Method (PFEM). This method allows the incorporation of strong non-linearities, ...
    • Explicit finite deformation stress integration of the elasto-plastic constitutive equations 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Carbonell Puigbó, Josep Maria (CRC Press Taylor & Francis Group, 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work, an explicit integration scheme for hyperelastic-based finite strains elasto-plasticity is presented. One step update equations are obtained from the large deformation multiplicative elasto-plasticity theory, ...
    • Exploring the numerical performance of node-based smoothed finite elements in coupled hydro-mechanical problems 

      Monforte Vila, Lluís; Collico, Stefano; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Elsevier, 2023-08)
      Article
      Accés restringit per política de l'editorial
      Node-based smoothed finite element (NS-FEM) formulations for the coupled hydro-mechanical problem are now becoming popular in soil mechanics, but there has been limited comparative study of their performance. In this work, ...
    • G-PFEM numerical assessment of screw pile undrained capacity 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Ciantia, Matteo Oryem (University of Dundee, 2019)
      Text en actes de congrés
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      This contribution describes a preliminary parametric analysis of the factors affecting the pull-out resistance of screw-piles in undrained conditions. The numerical simulations rely on the Particle Finite Element method, ...
    • G-PFEM: an open access numerical tool for the simulation of spudcan penetration in clays 

      Ciantia, Matteo Oryem; Dilberoglu, Emre; Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Carbonell Puigbó, Josep Maria (2022)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Penetration depth of Spudcan foundations for offshore mobile Jack-up rigs is typically predicted by considering a wished-in-place foundation at different depths and following traditional bearing capacity approaches. However, ...
    • Geotechnical particle finite element method for modeling of soil-structure interaction under large deformation conditions 

      Carbonell Puigbó, Josep Maria; Monforte Vila, Lluís; Ciantia, Matteo Oryem; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Science Press, 2022-06)
      Article
      Accés obert
      The possibilities of the particle finite element method (PFEM) for modeling geotechnical problems are increasingly evident. PFEM is a numerical approach to solve large displacement and large strain continuum problems that ...
    • Hydraulic conductivity from piezocone on-the-fly: a numerical evaluation 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Carbonell Puigbó, Josep Maria (Institution of Civil Engineers (ICE), 2018-12)
      Article
      Accés obert
      Permeability is important in many geotechnical applications. The current CPTu practice to obtain permeability values relies on dissipation tests, which are frequently slow and only linked to permeability through compressibility ...
    • Insertion problems in geomechanics with the particle finite element method 

      Monforte Vila, Lluís (Universitat Politècnica de Catalunya, 2018-11-05)
      Tesi
      Accés obert
      This thesis develops a numerical technique in which the Particle Finite Element method is applied to simulate solid intrusion problems in Geotechnical Engineering. The thesis describes the numerical development work that ...
    • Integration of elasto-plastic constitutive models infinite deformation: an explicit approach 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Carbonell Puigbó, Josep Maria (CIMNE, 2015)
      Text en actes de congrés
      Accés obert
      This paper highlights an explicit integration scheme for hyperelastic-based finite strains elasto-plastic models. One step update equations are obtained from the large deformation multiplicative elasto-plastic theory, where ...
    • Large-strain analysis of undrained smooth tube sampling 

      Monforte Vila, Lluís; Arroyo Alvarez de Toledo, Marcos; Carbonell Puigbó, Josep Maria; Gens Solé, Antonio (Thomas Telford, 2022-01)
      Article
      Accés obert
      Borehole tube sampling is a key process of geotechnical engineering. The paper presents numerical analyses of smooth tube sampling in clay using the Particle Finite Element Method (PFEM). The soil is described by a ...