• (2014). Vol. 74 pp. 699-731 (preprint), DOI 10.1002/fld.3870

    We present a Lagrangian formulation for finite element analysis of quasi-incompressible fluids that has excellent mass preservation features. The success of the formulation [...]

  • M. Celigueta, S. Latorre, F. Arrufat, E. Oñate
    (2017). (preprint), DOI 10.1007/s00466-017-1453-9

    The Discrete Element Method (DEM) has been used for modeling continua, like concrete or rocks. However, it requires a big calibration effort, even to capture just the linear [...]

  • E. Oñate, P. Nadukandi, J. Miquel
    (2017). (preprint), DOI 10.1016/j.cma.2017.08.012

    In this paper we present an accurate stabilized FIC-FEM formulation for the multidimensional steady-state advection-diffusion-absorption equation. The stabilized formulation [...]

  • S. Idelsohn, E. Oñate, P. Becker
    (2017). Vol. 3 (preprint)

    Particle methods in Computational Fluid Dynamics (CFD) are numerical tools for the solution of the equations of f luid dynamics obtained by replacing the fluuid continuum [...]

  • (2016). Vol. 3 pp. 14 (preprint)

    In this paper we present an overview of the possibilities of the finite increment calculus (FIC) approach for deriving computational methods in mechanics with improved numerical [...]

  • (2016). Vol. 112 pp. 26-39 (preprint)

    Progressive fracture in quasi-brittle materials is often treated via strain softening models in continuum damage mechanics. Such constitutive relations favour spurious strain [...]

  • (2016). Vol. 107(11) pp. 970-990 (preprint)

    We present a Lagrangian monolithic strategy for solving fluid-structure interaction (FSI) problems. The formulation is called Unified because fluids and solids are solved [...]

  • M. Celigueta, K. Deshpande, S. Latorre, E. Oñate
    (2016). Vol. 3(2) pp. 263-276 (preprint)

    We present a procedure for coupling the finite element method (FEM) and the discrete element method (DEM) for analysis of the motion of particles in non-Newtonian fluids. [...]

  • E. Oñate, J. Miquel, P. Nadukandi
    (2016). Vol. 298() pp. 373-406 (preprint)

    In this paper we present an accurate stabilized FIC-FEM formulation for the 1D advection-diffusion-reaction equation in the exponential and propagation regimes using two stabilization [...]

  • P. Ubach, F. Arrufat, L. Ring, R. Gandikota, F. Zárate, E. Oñate
    (2015). Vol. 3(1) pp. 39-4 (preprint)

    The authors present results on the use of the discrete element method (DEM) for the simulation of drilling processes typical in the oil and gas exploration industry. The numerical [...]

  • F. Zárate, E. Oñate
    (2015). Vol. 2(3) pp. 301-314 (preprint)

    This paper presents a new computational technique for predicting the onset and evolution of fracture in a continuum in a simple manner combining the finite element method [...]

  • M. Kouhi, E. Oñate, D. Mavriplis
    (2015). Vol. 46 pp. 422-435 (preprint)

    In this paper, an adjoint-based error estimation and mesh adaptation framework is developed for the compressible inviscid flows. The algorithm employs the Finite Calculus [...]

  • P. Becker, S. Idelsohn, E. Oñate
    (2015). Vol. 55(6) pp. 1091-1104 (preprint)

    This paper describes a strategy to solve multifluid and Fluid Structure Interaction (FSI) problems using Lagrangian particles combined with a fixed Finite Element (FE) mesh [...]

  • A. Franci, E. Oñate, J. Carbonell
    (2015). Vol. 102(3-4) pp. 257-277 (preprint)

    The purpose of this paper is to study the effect of the bulk modulus in the iterative matrix for the analysis of quasi-incompressible free surface fluid flows using a mixed [...]

  • M. Kouhi, E. Oñate
    (2015). Vol. 56(1) pp. 113-129 (preprint)

    A new implicit stabilized formulation for the numerical solution of the compressible NavierStokes equations is presented. The method is based on the Finite Calculus (FIC) [...]

  • E. Oñate, F. Zárate, J. Miquel, M. Santasusana, M. Celigueta, F. Arrufat, R. Gandikota, K. Khardar, L. Ring
    (2015). Vol. 2(2) pp. 139-160 (preprint)

    This paper presents a local constitutive model for modelling the linear and non linear behavior of soft and hard cohesive materials with the discrete element method (DEM). [...]

  • E. Oñate, M. Celigueta, S. Latorre, G. Casas, R. Rossi, J. Rojek
    (2014). Vol. 1 pp. 85-102 (preprint)

    We present a Lagrangian numerical technique for the analysis of flows incorporating physical particles of different sizes. The numerical approach is based on the Particle [...]

  • (2014). Vol. 54 pp. 85-107 (preprint)

    We present a generalized Lagrangian formulation for analysis of industrial forming processes involving thermally coupled interactions between deformable continua. The governing [...]

  • (2014). Vol. 54(6) pp. 1583-1596 (preprint)

    We present a mixed velocity-pressure finite element formulation for solving the updated Lagrangian equations for quasi and fully incompressible fluids. Details of the governing [...]

  • E. Oñate, P. Nadukandi, S. Idelsohn
    (2014). Vol. 271 pp. 185-209 (preprint)

    We present a 3-noded triangle and a 4-noded tetrahedra with a continuous linear velocity and a discontinuous linear pressure field formed by the sum of an unknown constant [...]

  • R. Flores, E. Ortega, E. Oñate
    (2014). Vol. 31(5) pp. 957-985 (preprint)

    This work describes a set of simple yet effective, numerical method for the design and evaluation of parachute-payload system. The developments include a coupled fluidstructural [...]

  • M. Kouhi, E. Oñate
    (2014). Vol. 74(2) pp. 872-897 (preprint)

    This paper aims at the development of a new stabilization formulation based on the Finite Calculus (FIC) scheme for solving the Euler equations using the Galerkin finite element [...]


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