Exploració per autor "Díez, Pedro"
Ara es mostren els items 91-110 de 145
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La Ingeniería Computacional en la Escuela de Caminos de Barcelona
Huerta, Antonio; Díez, Pedro; Fernández Méndez, Sonia; Pérez Foguet, Agustí; Rodríguez Ferran, Antonio; Sarrate Ramos, Josep (UCLM-ETS Ingenieros de Caminos Ciudad Real, 2003)
Text en actes de congrés
Accés obertLa ingeniería computacional se ha consolidado ya como una disciplina horizontal en el ámbito de la ingeniería civil. La modelización numérica es, cada vez más, una alternativa para el cálculo y diseño en inge niería a los ... -
Maths complements for Computational Mechanics a ATENEA Labs
Estela Carbonell, M. Rosa; Díez, Pedro; Saà Seoane, Joel; Villalonga Pons, Juana María (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-06-04)
Comunicació de congrés
Accés obertEls estudiants que ingressen als màsters en anglès de la UPC provinents d’altres països sovint tenen carències en coneixements bàsics de matemàtiques que s’imparteixen al primer cicle (Bachelor). El nostre projecte consisteix ... -
Meshless methods in dual analysis: theoretical and implementation issues
Ivannikov, Vladimir; Tiago, C.; Almeida, José Paulo Moitinho de; Díez, Pedro (2013-12)
Article
Accés obertThis paper presents a meshless implementation of dual analysis for 2D linear elasticity problems. The derivation of the governing systems of equations for the discretized compatible and equilibrated models is detailed and ... -
Modal-based goal-oriented error assessment and adaptivity for structural dynamics
Verdugo Rojano, Francesc; Parés Mariné, Núria; Díez, Pedro (2014)
Text en actes de congrés
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Modal-based goal-oriented error assessment for timeline-dependent quantities in transient dynamics
Verdugo Rojano, Francesc; Parés Mariné, Núria; Díez, Pedro (John Wiley & Sons, 2013-08-24)
Article
Accés restringit per política de l'editorialThis article presents a new approach to assess the error in specific quantities of interest in the framework of linear elastodynamics. In particular, a new type of quantities of interest (referred as timeline-dependent ... -
Model validation for the numerical simulation of the Double Punch Test
Pros Parés, Alba; Díez, Pedro; Molins i Borrell, Climent (2008)
Text en actes de congrés
Accés obertThe Double Punch test, an indirect traction test, is simulated numerically considering two different models (the nonlocal Mazars damage model and an heuristic crack model with joint elements). The test was designed to ... -
Modeling steel fiber reinforced concrete: numerical immersed boundary approach and a phenomenological mesomodel for concrete-fiber interaction
Pros Parés, Alba; Díez, Pedro; Molins i Borrell, Climent (John Wiley & Sons, 2012-04)
Article
Accés obertSteel fiber reinforced concrete (SFRC) allows overcoming brittleness and weakness under tension, the main drawbacks of plain concrete. The influence of the fibers on the behavior of SFRC depends on their shape, length, ... -
Modeling, with a unified level-set representation, of the expansion of a hollow in the ground under different physical phenomena
Cottereau, Regis; Díez, Pedro; Huerta, Antonio (2010)
Article
Accés obertThis paper builds on the flexibility of the level-set representation to model in a unified manner the expansion of a hollow in the ground under different physical phenomena. In particular, the dissolving action of a flow ... -
Modelling gravitational instabilities: slab break-off and Rayleigh-Taylor diapirism
Zlotnik, Sergio; Fernández, Manel; Díez, Pedro; Vergés, Jaume (2008-08)
Article
Accés obertA non-standard new code to solve multiphase viscous thermo–mechanical problems applied to geophysics is presented. Two numerical methodologies employed in the code are described: A level set technique to track the position ... -
Monitoring a PGD solver for parametric power flow problems with goal-oriented error assessment
García Blanco, Raquel; Borzacchiello, Domenico; Chinesta, Francisco; Díez, Pedro (John Wiley & Sons, 2017-08)
Article
Accés obertThe parametric analysis of electric grids requires carrying out a large number of Power Flow computations. The different parameters describe loading conditions and grid properties. In this framework, the Proper Generalized ... -
Nonintrusive parametric NVH study of a vehicle body structure
Cavaliere, Fabiola; Zlotnik, Sergio; Sevilla Càrdenas, Ruben; Larráyoz Izcara, Xabier; Díez, Pedro (Taylor & Francis Group, 2022-06-27)
Article
Accés obertA reduced order model technique is presented to perform the parametric Noise, Vibration and Harshness (NVH) study of a vehicle body-in-white (BIW) structure characterized by material and shape design variables. The ultimate ... -
Nonintrusive parametric solutions in structural dynamics
Cavaliere, Fabiola; Zlotnik, Sergio; Larráyoz Izcara, Xabier; Díez, Pedro (2022-02-01)
Article
Accés obertA nonintrusive reduced order method able to solve a parametric modal analysis is proposed in this work. The main objective is being able to efficiently identify how a variation of user-defined parameters affects the dynamic ... -
Nonintrusive reduced order model for parametric solutions of inertia relief problems
Cavaliere, Fabiola; Zlotnik, Sergio; Sevilla Cárdenas, Rubén; Larráyoz Izcara, Xabier; Díez, Pedro (John Wiley & sons, 2021-08-30)
Article
Accés obertThe Inertia Relief (IR) technique is widely used by industry and produces equilibrated loads allowing to analyze unconstrained systems without resorting to the more expensive full dynamic analysis. The main goal of this ... -
Nonintrusive stochastic finite elements for crashworthiness with VPS/Pamcrash
Rocas, Marc; García González, Alberto; Larráyoz Izcara, Xabier; Díez, Pedro (2020-01-13)
Article
Accés obertCrashworthiness analysis remains an important concern for the design of safety structures. In this context, uncertainties play an essential role in the response of a crash problem with non linear behavior. With this statement ... -
Nonintrusive uncertainty quantification for automotive crash problems with VPS/Pamcrash
Rocas Alonso, Marc; García González, Alberto; Zlotnik, Sergio; Larráyoz Izcara, Xabier; Díez, Pedro (2021-10-01)
Article
Accés obertUncertainty Quantification (UQ) is a key discipline for computational modeling of complex systems, enhancing reliability of engineering simulations. In crashworthiness, having an accurate assessment of the behavior of the ... -
Nonlinear dimensionality reduction for parametric problems: a kernel proper orthogonal decomposition
Díez, Pedro; Muixí Ballonga, Alba; Zlotnik, Sergio; García González, Alberto (John Wiley & sons, 2021-12-30)
Article
Accés obertReduced-order models are essential tools to deal with parametric problems in the context of optimization, uncertainty quantification, or control and inverse problems. The set of parametric solutions lies in a low-dimensional ... -
Numerical estimation of the bearing capacity of resistance spot welds in martensitic boron steels using a J-integral fracture criterion
Dorribo Dorribo, Daniel; Greve, Lars; Díez, Pedro; Arias Vicente, Irene; Larráyoz Izcara, Xabier (2018-08-01)
Article
Accés obertPredicting the bearing capacity of resistance spot welds (RSW) during vehicle crash tests has become a crucial task for the automotive industry, since the recent introduction of advanced high strength steels (AHSS) such ... -
Numerical modeling of erosion using an improvement of the extended finite element method
Cottereau, Régis; Díez, Pedro (2011)
Article
Accés obertWe present in this paper a numerical model of the erosion of a soil that accounts for both the flow in the open fluid and the flow of fluid through the porous soil. The interface between the open fluid and the soil is ... -
Numerical modeling of the double punch test for plain concrete
Pros Parés, Alba; Díez, Pedro; Molins i Borrell, Climent (2011-04)
Article
Accés obertDouble punch test is used to indirectly assess the tensile strength of plain concrete, ft. For this normalized test, the tensile strength is obtained as a function of the failure load, P, which is expressed as f_t = F(P). ... -
Numerical modeling of undersea acoustics using a partition of unity method with plane waves enrichment
Hospital Bravo, Raúl; Sarrate Ramos, Josep; Díez, Pedro (2016-05)
Article
Accés obertA new 2D numerical model to predict the underwater acoustic propagation is obtained by exploring the potential of the Partition of Unity Method (PUM) enriched with plane waves. The aim of the work is to obtain sound pressure ...