Enviaments recents

  • Performance of mixed formulations for the particle finite element method in soil mechanics problems 

    Monforte, LLuís; Carbonell Puigbó, Josep Maria; Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio (Springer, 2017-07)
    Article
    Accés obert
    This paper presents a computational framework for the numerical analysis of fluid-saturated porous media at large strains. The proposal relies, on one hand, on the particle finite element method (PFEM), known for its ...
  • Holistic disaster risk evaluation for the urban risk management plan of Manizales, Colombia 

    Carreño Tibaduiza, Martha Liliana; Cardona Arboleda, Omar Dario; Barbat Barbat, Horia Alejandro; Suarez, Dora Catalina; Perez, Maria del Pilar; Narvaez, Lizardo (Springer, 2017-09)
    Article
    Accés obert
    Disaster risk depends on both the physical vulnerability and a wide range of social, economic, and environmental aspects of a society. For a better risk understanding, a holistic or integrated perspective was considered ...
  • Finite element modeling of quasi-brittle cracks in 2D and 3D with enhanced strain accuracy 

    Cervera Ruiz, Miguel; Barbat Vlad, Gabriel; Chiumenti, Michèle (2017-11)
    Article
    Accés restringit per política de l'editorial
    This paper discusses the finite element modeling of cracking in quasi-brittle materials. The problem is addressed via a mixed strain/displacement finite element formulation and an isotropic damage constitutive model. The ...
  • Numerical modelling and experimental validation in Selective Laser Melting 

    Chiumenti, Michèle; Miranda Neiva, Eric; Salsi, Emilio; Cervera Ruiz, Miguel; Badia, Santiago; Moya, Joan; Chen, Zhuoer; Lee, Caroline; Davies, Christopher (2017-12)
    Article
    Accés restringit per política de l'editorial
    In this work a finite-element framework for the numerical simulation of the heat transfer analysis of additive manufacturing processes by powder-bed technologies, such as Selective Laser Melting, is presented. These kind ...
  • Continuous chip formation in metal cutting processes using the Particle Finite Element Method (PFEM) 

    Rodríguez, J. M.; Carbonell Puigbó, Josep Maria; Cante Terán, Juan Carlos; Oliver Olivella, Xavier (2017-08-01)
    Article
    Accés obert
    This paper presents a study on the metal cutting simulation with a particular numerical technique, the Particle Finite Element Method (PFEM) with a new modified time integration algorithm and incorporating a contact algorithm ...
  • Damage analysis of masonry structures subjected to rockfalls 

    Mavrouli, Olga Christina; Giannopoulos, P. G.; Carbonell Puigbó, Josep Maria; Syrmakezis, Costas (2017-06-01)
    Article
    Accés restringit per política de l'editorial
    Masonry structures present substantial vulnerability to rockfalls. The methodologies for the damage quantification of masonry structures subjected to rockfalls are scarce. An analytical procedure for the damage assessment ...
  • An improved enrichment method for weak discontinuities for thermal problems 

    Martí, Julio Marcelo; Ortega, Ernesto; Idelsohn Barg, Sergio Rodolfo (2017-07)
    Article
    Accés restringit per política de l'editorial
    The purpose of this paper is to propose a new elemental enrichment technique to improve the accuracy of the simulations of thermal problems containing weak discontinuities. Design/methodology/approach - The enrichment is ...
  • Enhanced friction model for Friction Stir Welding (FSW) analysis: simulation and experimental validation 

    Dialami, Narges; Chiumenti, Michèle; Cervera Ruiz, Miguel; Segatori, A.; Osikowicz, W. (2017-11)
    Article
    Accés restringit per política de l'editorial
    Friction is one of the main heat generation mechanisms in Friction Stir Welding (FSW). This phenomenon occurs between the pin and the workpiece as the rotating tool moves along the weld line. An accurate friction model is ...
  • Three embedded techniques for finite element heat flow problem with embedded discontinuities 

    Davari, Masud; Rossi, Riccardo; Dadvand, Pooyan (2017-06)
    Article
    Accés restringit per política de l'editorial
    The present paper explores the solution of a heat conduction problem considering discontinuities embedded within the mesh and aligned at arbitrary angles with respect to the mesh edges. Three alternative approaches are ...
  • Numerical simulation and experimental calibration of additive manufacturing by blown powder technology. Part I: thermal analysis 

    Chiumenti, Michèle; Lin, Xin; Cervera Ruiz, Miguel; Lei, Wei; Zheng, Yuxiang; Huang, Weidong (2017-06)
    Article
    Accés obert
    Purpose This paper aims to address the numerical simulation of additive manufacturing (AM) processes. The numerical results are compared with the experimental campaign carried out at State Key Laboratory of Solidification ...

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