Now showing items 1-9 of 9

    • 3D simulation of Vajont disaster. Part 1: numerical formulation and validation 

      Franci, Alessandro; Cremonesi, Massimiliano; Perego, Umberto; Crosta, Giovanni Battista; Oñate Ibáñez de Navarra, Eugenio (2020-12)
      Article
      Restricted access - publisher's policy
      This work presents a numerical method for the simulation of landslides generated impulse waves and its application to the historical Vajont case study. The computational tool is based on the Particle Finite Element Method ...
    • 3D simulation of Vajont disaster. Part 2: multi-failure scenarios 

      Franci, Alessandro; Cremonesi, Massimiliano; Perego, Umberto; Oñate Ibáñez de Navarra, Eugenio; Crosta, Giovanni Battista (2020-12)
      Article
      Restricted access - publisher's policy
      Prediction of multi-hazard slope stability events requires an informed and judicious choice of the possible scenarios. An incorrect definition of landslide conditions in terms of expected failure volume, material behavior, ...
    • A fully explicit fluid-structure interaction approach based on PFEM and FEM 

      Meduri, Simone; Cremonesi, Massimiliano; Perego, Umberto (CIMNE, 2017)
      Conference report
      Open Access
      Partitioned approaches for the solution of Fluid-Structure Interaction (FSI) problems are particularly interesting because, among other aspects, they allow for the reuse of existing software. In this work, we propose a ...
    • A fully explicit fluid-structure interaction approach based on the PFEM 

      Meduri, Simone; Cre, Massimiliano; Perego, Umberto (CIMNE, 2017)
      Conference report
      Open Access
      The efficient numerical simulation of Fluid-Structure Interaction (FSI) problems is of growing interest in many engineering fields. Staggered approaches are particularly interesting because they allow for the ...
    • A Lagrangian nodal integration method for free-surface fluid flows 

      Franci, Alessandro; Cremonesi, Massimiliano; Perego, Umberto; Oñate Ibáñez de Navarra, Eugenio (2020-04)
      Article
      Restricted access - publisher's policy
      We present a Lagrangian nodal integration method for the simulation of Newtonian and non-Newtonian free-surface fluid flows. The proposed nodal Lagrangian method uses a finite element mesh to discretize the computational ...
    • A PFEM approach to the simulation of landslide generated water-waves 

      Cremonesi, Massimiliano; Di Prisco, Claudio; Perego, Umberto (CIMNE, 2013)
      Conference report
      Open Access
      A Particle Finite Element Method is here applied to the simulation of landslide-water interaction. An elastic-visco-plastic non-Newtonian, Bingham-like constitutive model has been used to describe the landslide material. ...
    • A thermodynamically consistent cohesive damage model for the simulation of mixed-mode delamination 

      Confalonieri, Federica; Perego, Umberto (CIMNE, 2017)
      Conference report
      Open Access
      This work is devoted to the formulation of a new cohesive model for mixed-mode delamination. The model is based on a thermodynamically consistent isotropic damage formulation, with consideration of an internal ...
    • Crack propagation in shells due to impact against sharp objects 

      Pagani, Mara; Perego, Umberto (CIMNE, 2011)
      Conference report
      Open Access
      The present paper is concerned with the development of an effective finite element tool for the simulation of crack propagation in thin structures, induced by contact or impact against sharp objects. In particular the purpose ...
    • Crack propagation in thin shells by explicit dynamics solid-shell models 

      Pagani, Mara; Perego, Umberto (CIMNE, 2013)
      Conference report
      Open Access
      A computational technique for the simulation of crack propagation due to cutting in thin structures is proposed. The implementation of elastoplastic solid-shell elements in an explicit framework is discussed. Finally, in ...