Now showing items 1-20 of 30

  • 3D numerical models of FSW processes with non-cylindrical pin 

    Bussetta, Philippe; Dialamishabankareh, Narges; Chiumenti, Michèle; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel; Ponthot, Jean Philippe (Taylor & Francis, 2015-06)
    Article
    Open Access
    Friction Stir Welding (FSW) process is a relatively recent welding process (patented in 1991). FSW is a solid-state joining process during which materials to be joined are not melted. During the FSW process, the behaviour ...
  • 3D numerical models using a fluid or a solid formulation of FSW processes with a non-cylindrical pin 

    Bussetta, Philippe; Dialamishabankareh, Narges; Chiumenti, Michèle; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel; Boman, Romain; Ponthot, Jean Philippe (Springer, 2015-12)
    Article
    Open Access
    Friction Stir Welding (FSW) process is a relatively recent welding process (patented in 1991). FSW is a solid-state joining process during which materials to be joined are not melted. During the FSW process, the behaviour ...
  • A computational model for the numerical simulation of FSW processes 

    Agelet de Saracibar Bosch, Carlos; Chiumenti, Michèle; Santiago, Diego; Cervera Ruiz, Miguel; Dialami, Narges; Lombera, Guillermo (Springer, 2010)
    Conference report
    Restricted access - publisher's policy
    In this paper a computational model for the numerical simulation of Friction Stir Welding (FSW) processes is presented. FSW is a new method of welding in solid state in which a shouldered tool with a profile probe is rotated ...
  • A direct elimination algorithm for quasi-static and dynamic contact problems 

    Capua, Daniel di; Agelet de Saracibar Bosch, Carlos (2015-01-01)
    Article
    Open Access
    This paper deals with the computational modeling and numerical simulation of contact problems at Unite deformations using the Finite element method. Quasi-static and dynamic problems are considered and two particular ...
  • Advances in the numerical simulation of 3D FSW processes 

    Agelet de Saracibar Bosch, Carlos; Chiumenti, Michèle; Cervera Ruiz, Miguel; Dialami, Narges; Santiago, Diego; Lombera, Guillermo (2011)
    Conference report
    Restricted access - publisher's policy
    This work deals with the computational modeling and numerical simulation of 3D Friction Stir Welding (FSW) processes. Eulerian and ALE formulations have been used to solve the quasi-static thermal transient governing ...
  • A fast and accurate two-stage strategy to evaluate the effect of the pin tool profile on metal flow, torque and forces in friction stir welding 

    Dialami, Narges; Cervera Ruiz, Miguel; Chiumenti, Michèle; Agelet de Saracibar Bosch, Carlos (2017-03-01)
    Article
    Open Access
    Pin geometry is a fundamental consideration in friction stir welding (FSW). It influences the thermal behaviour, material flow and forces during the weld and reflects on the joint quality. This work studies four pin ...
  • A mixed stabilized finite element formulation for strain localization analysis 

    Chiumenti, Michèle; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos (2010)
    Conference report
    Open Access
    This work exploits the concept of stabilization techniques to improve the behaviour of either mixed or pu/mixed u/εlinear/linear triangular elements when strain localization analysis is required. Different stabilization ...
  • A novel stress-accurate FE technology for highly non-linear analysis with incompressibility constraint: application to the numerical simulation of the FSW process 

    Chiumenti, Michèle; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos; Dialami, Narges (American Institute of Physics (AIP), 2013)
    Conference report
    Restricted access - publisher's policy
    In this work a novel finite element technology based on a three-field mixed formulation is presented. The Variational Multi Scale (VMS) method is used to circumvent the LBB stability condition allowing the use of linear ...
  • A strategy for the numerical simulation of metal deposition and multi-pass welding processes 

    Dialami, Narges; Chiumenti, Michèle; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2009)
    Conference report
    Restricted access - publisher's policy
    In this work a numerical model is developed to accurately predict temperature evolution and distortions associated to the successive welding layers deposited during the multi-pass welding and metal deposition processes (MD).
  • Comparative study on sheet metal forming processes by numerical modelling and experiment 

    Sosnowski, Wlodzimierz; Oñate Ibáñez de Navarra, Eugenio; Agelet de Saracibar Bosch, Carlos (1992-09)
    Article
    Open Access
    In this paper some results of a wide experimental program are presented and compared with some finite element solution of sheet metal forming problems using a viscous shell formulation.
  • Comparison of a fluid and a solid approach for the numerical simulation of friction stir welding with a non-cylindrical pin 

    Bussetta, Philippe; Dialamishabankareh, Narges; Boman, Romain; Chiumenti, Michèle; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel; Ponthot, Jean Philippe (2013)
    Conference report
    Open Access
  • Computational modeling of multi-pass welding and metal deposition processes 

    Chiumenti, Michèle; Cervera Ruiz, Miguel; Dialami, Narges; Agelet de Saracibar Bosch, Carlos (European Scientific Association For Material Forming (ESAFORM), 2009)
    Conference report
    Restricted access - publisher's policy
    In this work a computational model for the numerical simulation of multi-pass welding and metal deposition processes is presented. A fully coupled thermo-mechanical solution, including phase-change phenomena and shrinkage ...
  • Conserving algorithms for frictionless and full stick friction dynamic contact problems using the direct elimination method 

    Agelet de Saracibar Bosch, Carlos; Capua, Daniel di (John Wiley & sons, 2018-02)
    Article
    Open Access
    In this paper, conserving time-stepping algorithms for frictionless and full stick friction dynamic contact problems are presented. Time integration algorithms for frictionless and full stick friction dynamic contact ...
  • Continuum Mechanics for Engineers. Theory and Problems 

    Oliver Olivella, Xavier; Agelet de Saracibar Bosch, Carlos (2017-03)
    Book
    Open Access
    This book was born with the vocation of being a tool for the training of engineers in continuum mechanics. In fact, it is the fruit of the experience in teaching this discipline during many years at the Civil Engineering ...
  • Coupled thermo-mechanical analysis for the numerical simulation of welding processes 

    Chiumenti, Michèle; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2009)
    Conference report
    Restricted access - publisher's policy
    The aim of this paper consists of both the description of the formulation adopted for the numerical simulation of the Metal Deposition process (MD) and the experimental work carried out at ITP Industry (Industria de Turbo ...
  • Formulación estabilizada de elementos finitos triangulares y tetraédricos para problemas de incompresibilidad en deformaciones infinitesimales 

    Valverde Guzmán, Quino Martín; Chiumenti, Michèle; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos (Universitat Politècnica de Catalunya, 2005)
    Article
    Open Access
    Se presenta una formulación en multiescalas del método de elementos finitos capaz de estabilizar el comportamiento de elementos mixtos en problemas de elasticidad y de plasticidad incompresibles en deformaciones infinitesimales. ...
  • Formulación estabilizada de elementos finitos triangulares y tetraédricos para problemas de incompresibilidad en grandes deformaciones 

    Valverde Guzmán, Quino Martín; Chiumenti, Michèle; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel (Universitat Politècnica de Catalunya, 2006)
    Article
    Open Access
    Se presenta una formulación en multiescalas del método de elementos finitos capaz de estabilizar el comportamiento de elementos mixtos en problemas de elasticidad y de plasticidad incompresibles en grandes deformaciones. ...
  • Local and global approaches to Friction Stir Welding 

    Dialamishabankareh, Narges; Chiumenti, Michèle; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos (International Centre for Numerical Methods in Engineering (CIMNE), 2016)
    Book
    Open Access
    This paper deals with the numerical simulation of Friction Stir Welding (FSW) processes. FSW techniques are used in many industrial applications and particularly in the aeronautic and aerospace industries, where the quality ...
  • Local–global strategy for the prediction of residual stresses in FSW processes 

    Dialami, Narges; Cervera Ruiz, Miguel; Chiumenti, Michèle; Agelet de Saracibar Bosch, Carlos (2017-02)
    Article
    Open Access
    This work describes the local–global strategy proposed for the computation of residual stresses in friction stir welding (FSW) processes. A coupling strategy between the analysis of the process zone nearby the pin tool ...
  • Material flow visualization in Friction Stir Welding via particle tracing 

    Dialami Shabandarech, Narges; Chiumenti, Michèle; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos; Ponthot, Jean Philippe (2015-04)
    Article
    Open Access
    This work deals with the modeling of the material flow in Friction Stir Welding (FSW) processes using particle tracing method. For the computation of particle trajectories, three accurate and computationally efficient ...