Exploració per autor "Garolera Vinent, Daniel"

Ara es mostren els items 1-19 de 19

    • 3D analysis of H-M coupled problem with zero-thickness interface elements applied to geomechanics 

      Garolera Vinent, Daniel; Segura Serra, Josep Maria; Carol, Ignacio; Lakashmikhanta, Ramasesha; Alvarellos, J. (CIMNE, 2015)
      Comunicació de congrés
      Accés obert
      In spite of the significant developments seen in recent years,numerical modelin of Hydraulic Fracturing still poses major challenges due to the strong coupling between fluid flow and crack development,which is itself a ...

    • Application of configurational mechanics to crack propagation in quasi-brittle materials 

      Crusat Codina, Laura; Carol, Ignacio; Garolera Vinent, Daniel (2021-01)
      Article
      Accés obert
      The paper describes a numerical approach to represent cracking along non-pre-established directions, in 2-D structures or domains of quasi-brittle materials such as concrete or rock. The approach is developed on the basis ...

    • Application of zero-thickness interface elements to sanding prediction analysis 

      Garolera Vinent, Daniel; Carol, Ignacio; Papanastasiou, Panos (2020-07)
      Article
      Accés obert
      A computational micromechanical analysis based on zero thickness interface elements for modelling solid prediction in hydrocarbon reservoir sandstones is presented. The model is capable of modelling localization of ...

    • Avoiding fracture instability in wedge splitting tests by means of numerical simulations 

      Liaudat, Joaquín; Garolera Vinent, Daniel; Martínez Estévez, Ariadna; Carol, Ignacio; Lakshmikantha, Ramasesha Mookanahallipatna; Alvarellos Iglesias, José (2017)
      Text en actes de congrés
      Accés obert
      In this paper, unstable fracture propagation obtained in a in-house performed experimentalWedge Splitting Test (WST) is simulated by means of the FEM and fracture- based zero-thickness interface elements. In order to obtain ...

    • Coupled H-M fracture interaction using FEM with zero-thickness interface elements 

      Garolera Vinent, Daniel; Segura Serra, Josep Maria; Carol, Ignacio; Lakshmikantha, Ramasesha Mookanahallipatna; Alvarellos Iglesias, José (2017)
      Text en actes de congrés
      Accés obert
      Massive treatments of hydraulic fracturing is a procedure employed for low permeability reservoirs stimulation. This technique consists in generating a series of parallel spaced fractures parallel (multi-stage fracturing). ...

    • Coupled h-m fracture interaction using fem with zero-thickness interface elements 

      Garolera Vinent, Daniel; Segura, J. M.; Carol, Ignacio; Lakshmikantha, M.R.; Alvarellos, J. (CIMNE, 2017)
      Text en actes de congrés
      Accés obert
      Intensive hydraulic fracturing is a procedure employed for low permeability reservoir stimulation. This technique consists of generating a sequence of regularly spaced parallel fractures (multi-stage fracturing). The ...

    • Estudio Microestructural del Rock Sanding 

      Garolera Vinent, Daniel (Universitat Politècnica de Catalunya, 2003-01-01)
      Tesina
      Accés obert
      Castellà: El estudio de la producción de arena (rock sanding) en pozos petrolíferos ha sido objeto importante de investigación durante los últimos años debido al auge de las nuevas técnicas de producción: perforación con ...

    • Hydraulic fracture modelling with double node zero-thickness interface elements. 

      Garolera Vinent, Daniel; Segura, J.M.; Carol, Ignacio; Lakshmikantha, M.R.; Alvarellos, J. (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
      Text en actes de congrés
      Accés obert

    • Hydro-mechanical coupling in zero-thickness interface elements, formulation and applications in geomechanics 

      Garolera Vinent, Daniel; Aliguer Piferrer, Ignasi; Carol, Ignacio; Segura, J.M.; Lakshmikantha, Ramasesha Mookanahallipatna; Alvarellos Iglesias, José (CRC Press, 2014)
      Text en actes de congrés
      Accés obert
      Zero-thickness joint/interface elements of the Goodman type, have been advantageously used to solve many problems in solid mechanics involving material interfaces or discontinuities. Some years ago, the authors have also ...

    • Micromechanical analysis of damage and fracture in sandstone rock specimens, using zero-thickness interface elements 

      Garolera Vinent, Daniel; Carol, Ignacio; López Garello, Carlos María (CIMNE, 2011)
      Text en actes de congrés
      Accés obert
      This numerical study deals with the analysis of rock specimens from a micromechanical point of view. The analysis is based on the Finite Element Method (FEM) with fracture-based zero-thickness interface elements, and ...

    • Micromechanical analysis of sand production 

      Garolera Vinent, Daniel; Carol, Ignacio; Papanastasiou, Panos (2019-04)
      Article
      Accés obert
      We present a micromechanical approach based on zero-thickness interface elements for modelling advanced localization and cracking states of cemented granular materials, such as reservoir sandstones. The proposed methodology ...

    • New developments in the application of configurational mechanics to crack propagation 

      Crusat Codina, Laura; Carol, Ignacio; Garolera Vinent, Daniel (CIMNE, 2019)
      Text en actes de congrés
      Accés obert
      The numerical description of discrete cracks and their propagation remains one of the main difficulties in the modeling of quasi-brittle materials such as rock or concrete. An emerging powerful approach is the use of ...

    • New developments in the application of configurational mechanics to crack propagation 

      Crusat Codina, Laura; Carol, Ignacio; Garolera Vinent, Daniel (2019)
      Text en actes de congrés
      Accés obert
      The numerical description of discrete cracks and their propagation remains one of the main difficulties in the modeling of quasi-brittle materials such as rock or concrete. An emerging powerful approach is the use of ...

    • Numerical modelling of the wedge splitting test in rock specimens, using fracture-based zero-thickness interface elements 

      Liaudat, Joaquín; Garolera Vinent, Daniel; Martínez Benasat, Antonio; Carol, Ignacio; Lakashmikhanta, Ramasesha; Alvarellos, J. (CIMNE, 2015)
      Comunicació de congrés
      Accés obert
      The purpose of the Wedge Splitting Test (WST) is to generate stable mode I fracture crack along a pre-established path, and be able to measure the specific fracture energy parameter of the material GFI. The test is performed ...

    • Rock bolt behaviour in stress-fractured ground: a FE analysis using zero-thickness interface elements and fracture-based constitutive laws 

      Fornia, A.; Carol, Ignacio; Garolera Vinent, Daniel; Kaiser, P. K.; Eberhardt, E. (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A finite element analysis using zero-thickness interface elements of the Goodman type, which incorporate a fracture mechanics-based mixed-mode constitutive law, is presented to study stress-induced cracking and spalling ...

    • XFEM formulation for discontinuities in fractured rock masses 

      Crusat, Laura; Garolera Vinent, Daniel; Carol, Ignacio (CIMNE, 2015)
      Comunicació de congrés
      Accés obert
      The paper describes some aspects of the application of XFEM to represent Geomechanical discontinuities, including the choice of additional nodal variables and the appearance and remedies to the oscillations that may take ...

    • XFEM formulation with sub-interpolation, and equivalence to zero-thickness interface elements 

      Crusat Codina, Laura; Carol, Ignacio; Garolera Vinent, Daniel (2019-01)
      Article
      Accés obert
      This paper describes a particular formulation of the extended finite element method (XFEM) specifically conceived for application to existing discontinuities of fixed location, for instance, in geological media. The ...

    • Zero-thickness interface elements in petroleum geomechanics : sand production and hydraulic fracture 

      Garolera Vinent, Daniel (Universitat Politècnica de Catalunya, 2017-09-18)
      Tesi
      Accés obert
      This thesis describes the extension of the Finite Element Method with zero-thickness interface elements (FEM+z) to 3D, large and complex problems in geomaterials, with special interest in petroleum geomechanics. This general ...

    • Zero-thickness interface elements with h-m coupling, formulation and applications in geomechanics 

      Garolera Vinent, Daniel; Aliguer Piferrer, Ignasi; Segura, J. M.; Carol, Ignacio; Lakshmikantha, M. R.; Alvarellos, J. (CIMNE, 2013)
      Text en actes de congrés
      Accés obert
      Previous developments on zero-thickness interface elements for coupled Hydro-Mechanics problems are briefly described, followed by some new geomechanical applications, particularly to hydraulic fracture in rock. The results ...