Now showing items 1-20 of 611

  • 3D finite element computations for viscous aerodynamic flows around automobiles 

    Fischer, Thomas B.; Miquel Canet, Juan; Fruitós Bickham, Óscar Alejandro; Oñate Ibáñez de Navarra, Eugenio (1994-05)
    External research report
    Open Access
  • 3D numerical simulation of the load test on a masonry barrel arch bridge 

    Palermo, Roberta (Universitat Politècnica de Catalunya, 2019-07-26)
    Master thesis
    Open Access
    Simulate the test on a masonry barrel arch bridge that was developed at the Structural Technology Lab of the UPC. The arch was tested up to failure. Complete characterisation of the masonry, the infill, the loading and the ...
  • 3D printed scaled setup for smoke transport analysis in a subterranean passenger platform 

    Flores-Herrera, L.A.; Rivera-Blas, R.; Pérez-Cruz, J. Humberto; Muñoz-Aguirre, N.; Torres-Martínez, C.; Carbajal-Romero, M.F.; Vargas-Carmona, R.; Funes-Lora, M. (Universitat Politècnica de Catalunya. CIMNE, 2019)
    Article
    Open Access
    In this work, the study of smoke fire transportation inside of a subway passenger platform is presented. The study includes a set of numerical simulations to observe the behavior of the smoke inside the platform. Two smoke ...
  • A 4-node thin shell element based on co-rotational for laminated composite structures 

    Qiao, S.J.; Gao, H.S.; Hua, L.; Wang, F.S. (Universitat Politècnica de Catalunya. CIMNE, 2018)
    Article
    Open Access
    The finite formulation of the 4-node thin shell element based on Co-rotational (CR) and Timoshenko's theory was presented for the analysis of laminated composite structures. Based on the Timoshenko's theory the present ...
  • Abolladura de estructuras de barras de sección tipo doble-T 

    Cacho-Pérez, M.; Lorenzana Ibán, A. (Universitat Politècnica de Catalunya. CIMNE, 2017)
    Article
    Open Access
    En este trabajo se expone una metodología de varias etapas para determinar, con mínimo esfuerzo computacional el factor de carga crítico que produce el fenómeno de inestabilidad local de abolladura de las paredes de los ...
  • Abolladura de estructuras de barras de sección tipo doble-T 

    Cacho-Pérez, M.; Lorenzana Ibán, A. (Universitat Politècnica de Catalunya. CIMNE, 2017)
    Article
    Open Access
    En este trabajo se expone una metodología de varias etapas para determinar, con mínimo esfuerzo computacional el factor de carga crítico que produce el fenómeno de inestabilidad local de abolladura de las paredes de los ...
  • A branch-and-cut algorithm for the multidepot rural postman problem 

    Fernández Aréizaga, Elena; Laporte, Gilbert; Rodríguez Pereira, Jessica (2018-03)
    Article
    Open Access
    This paper considers the Multidepot Rural Postman Problem, an extension of the classical Rural Postman Problem in which there are several depots instead of only one. The aim is to construct a minimum cost set of routes ...
  • Accurate recovery-based upper error bounds for the extended finite element framework 

    Ródenas García, Juan José; González Estrada, O. A.; Díez, Pedro; Fuenmayor, F. J. (2010-08-01)
    Article
    Open Access
    This paper introduces a recovery-type error estimator yielding upper bounds of the error in energy norm for linear elastic fracture mechanics problems solved using the extended finite element method (XFEM). The paper can ...
  • A comparative study of two compact finite difference methods: standard vs. mimetic 

    Córdova, Luis Joaquin; Rojas, Otilio; Otero Calviño, Beatriz; Castillo, José (Sociedad Venezolana de Métodos Numéricos en Ingeniería, 2014)
    Conference report
    Restricted access - publisher's policy
    In this work, we implement two fourth-order compact finite differences (CFD) methods and use them to model wave propagation on a elastic string. The formulation of the first method employs the standard implicit CFD constructed ...
  • Adaptive and off-line techniques for non-linear multiscale analysis 

    Zaghi, Stefano; Martínez García, Javier; Rossi, Riccardo; Petracca, Massimo (2018-08-22)
    Article
    Open Access
    This paper presents two procedures, based on the numerical multiscale theory, developed to predict the mechanical non-linear response of composite materials under monotonically increasing loads. Such procedures are designed ...
  • Adaptive reduced basis strategy based on goal oriented error assessment for stochastic problems 

    Florentin, Eric; Díez, Pedro (2012-06)
    Article
    Open Access
    In the framework of stochastic non-intrusive finite element modeling, a common practice is using Monte Carlo simulation. The main drawback of this approach is the computational cost, because it requires computing a large ...
  • 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 ...
  • Advanced composite material simulation 

    Oller Martínez, Sergio Horacio; Martínez, X; Barbat Barbat, Horia Alejandro; Rastellini, F (2008-01)
    Article
    Open Access
    A computational methodology is presented for modeling the non-linear mechanical behavior of composite structures made of FRP (Fiber-Reinforced Polymers) laminates. The model is based on the appropriate combination of the ...
  • Advanced harmonic techniques for solving the transient heat equation 

    Aguado, José Vicente; Huerta, Antonio; Chinesta, Francisco; Cueto Prendes, Elias; Leygue, Adrien (Sociedad Española de Métodos Numéricos en Ingeniería (SEMNI), 2013)
    Conference report
    Restricted access - publisher's policy
    Simulation-based management of processes has always been a big challenge because of the difficulty to merge two apparently opposed idea s: the real time handling demanded by the process, and the traditionally strong ...
  • A finite point method to solve shallow water equations 

    Oñate Ibáñez de Navarra, Eugenio (2009-02)
    External research report
    Open Access
  • A flux-free a posteriori error estimator for the incompressible Stokes problem using a mixed FE formulation 

    Larsson, Fredrik; Díez, Pedro; Huerta, Antonio (2010-08-01)
    Article
    Open Access
    In this contribution, we present an a posteriori error estimator for the incompressible Stokes problem valid for a conventional mixed FE formulation. Due to the saddle-point property of the problem, conventional error ...
  • A geometric description of Discrete Exterior Calculus for general triangulations 

    Herrera, Rafael; Botello, Salvador; Esqueda, Humberto; Moreles, Miguel Ángel (Universitat Politècnica de Catalunya. CIMNE, 2019)
    Article
    Open Access
    We revisit the theory of Discrete Exterior Calculus (DEC) in 2D for general triangulations, relying only on Vector Calculus and Matrix Algebra. We present DEC numerical solutions of the Poisson equation and compare them ...
  • A influência do peso próprio na otimização topológica de estruturas elásticas 2D – via técnica numérica Smooth Evolutionary Structural Optimization (SESO) 

    Simonetti, H.L.; Almeida, V.S.; Oliveira Neto, L. (Universitat Politècnica de Catalunya. CIMNE, 2014)
    Article
    Open Access
    O presente artigo aborda a otimização topológica em problemas de elasticidade plana linear considerando a influência do peso próprio nos esforços em elementos estruturais. Utiliza‐se para este fim uma técnica numérica ...
  • Ajuste de modelos de cortante en hormigón estructural mediante algoritmos evolutivos 

    Hernández-Díaz, A.M.; Cecilia, J.M.; García-Román, M.D. (Universitat Politècnica de Catalunya. CIMNE, 2017)
    Article
    Open Access
    El comportamiento de elementos de hormigón armado y pretensado sometidos a cortante ha sido tradicionalmente objeto de estudio de las denominadas Teorías de Campos de Compresiones . En los últimos años varios autores han ...
  • Àlgebra lineal numèrica. Presentació de l'assignatura 

    Rodríguez Ferran, Antonio (2011-02-10)
    Audiovisual
    Open Access