Exploració per autor "Díez, Pedro"
Ara es mostren els items 47-66 de 145
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Derivation of shallow water models for steady and transient phenomena, required assumptions and resulting equations
Steffens, Lindaura Maria; Díez, Pedro (2009-04-07T11:25:00Z)
Text en actes de congrés
Accés obertThe shallow water models describe water flow in rivers, lakes and shallow seas. They are used to study many physical phenomena of interest, such as, modeling environmental effects, commercial activities on fisheries and ... -
Discrete empirical interpolation for hyper-reduction of hydro-mechanical problems in groundwater flow through soil
Nasika, Christina; Díez, Pedro; Gerard, Pierre; Massart, Thierry J.; Zlotnik, Sergio (2023-04-10)
Article
Accés obertThe recent surge in the availability of sensor data and computational resources has fostered the development of technologies for optimization, control, and monitoring of large infrastructures, integrating data and numerical ... -
Discrete meso-modeling of steel fiber reinforced concrete: simulation of flexural behavior
Pros Parés, Alba; Díez, Pedro; Molins i Borrell, Climent (International Centre for Numerical Methods in Engineering (CIMNE), 2011)
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Accés obertConcrete provides with a variety of innovative designs, but two characteristics have limited its use: it is brittle and weak under tension. One way to overcome this problem is to add steel fibers into the concrete matrix, ... -
Discrete meso-modeling of steel fiber reinforced concrete: simultation of flexural behavior
Pros, Alba; Díez, Pedro; Molins i Borrell, Climent (CIMNE, 2011)
Text en actes de congrés
Accés obertConcrete provides with a variety of innovative designs, but two characteristics have limited its use: it is brittle and weak under tension. One way to overcome this problem is to add steel fibers into the concrete matrix, ... -
Educating XXIst century civil engineers in Barcelona
Turmo Coderque, José; Estela Carbonell, M. Rosa; Chacón Flores, Rolando Antonio; Gironella Cobos, Xavier; Lloberas Valls, Oriol; Oliver Olivella, Xavier; Poblet-Puig, Jordi; Puigví Burniol, Maria Àngels; Valls del Barrio, Susanna; Díez, Pedro (2017)
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Accés restringit per política de l'editorialThe educational programs of Civil Engineering schools have evolved to adapt to changes in society demands and regulations. Specifically, Civil Engineering curricula in Spain was highly impacted by the Bolonia Declaration ... -
Effect of the separated approximation of input data in the accuracy of the resulting PGD solution
Zlotnik, Sergio; Díez, Pedro; Huerta, Antonio (CIMNE, 2015)
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Accés obertSeparated representations are commonly used to avoid the so-called curse of dimensionality, that is, an exponential increase in the number of degrees of freedom with the number of dimensions. In order to use separated ... -
Effect of the separated approximation of input data in the accuracy of the resulting PGD solution
Zlotnik, Sergio; Díez, Pedro; González, David; Huerta, Antonio (Springer, 2015-11-25)
Article
Accés obertThe Proper Generalized Decomposition (PGD) requires separability of the input data (e.g. physical properties, source term, boundary conditions, initial state). In many cases the input data is not expressed in a separated ... -
Encapsulated PGD algebraic toolbox operating with high-dimensional data
Díez, Pedro; Zlotnik, Sergio; García González, Alberto; Huerta, Antonio (2019-11-28)
Article
Accés obertIn its original conception, proper generalized decomposition (PGD) provides explicit parametric solutions, denoted as computational vademecums or digital abacuses, to parametric boundary value problems. The PGD approach ... -
Enforcing interface flux continuity in enhanced XFEM: stability analysis
Díez, Pedro; Zlotnik, Sergio; Cottereau, Régis (2012)
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Accés restringit per política de l'editorialXFEM is found to be an efficient approach for solving multiphase problems. -
Engagement of civil engineer students in the first academic year
Estela Carbonell, M. Rosa; Díez, Pedro (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
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Accés obertStronger student engagement or improved student engagement are common instructional objectives expressed by Higher Educational Institutions. They aim, in particular, at reducing the early dropouts of Science, technology, ... -
Enhanced goal-oriented error assessment and computational strategies in adaptive reduced basis solver for stochastic problems
Serafin, Kevin; Magnain, Benoît; Florentin, Eric; Parés Mariné, Núria; Díez, Pedro (John Wiley & Sons, 2017-05-04)
Article
Accés obertThis work focuses on providing accurate low-cost approximations of stochastic ¿nite elements simulations in the framework of linear elasticity. In a previous work, an adaptive strategy was introduced as an improved Monte-Carlo ... -
Enrichissement des interpolations d'elements finis en utilisant des méthodes de particules
Huerta, Antonio; Fernández Méndez, Sonia; Díez, Pedro (2002-11)
Article
Accés obertIn the framework of meshless methods the interpolation is based on a distribution of particles : it is not necessary to define connectivities. In this methods the interpolation can be easily enriched, increasing the number ... -
Equilibrated patch recovery error estimates: simple and accurate upper bounds of the error
Díez, Pedro; Ródenas García, Juan José; Zienkiewicz, Olgierd Cecil (Wiley and Sons, 2007-03)
Article
Accés obertThis paper introduces a new recovery-type error estimator ensuring local equilibrium and yielding a guaranteed upper bound of the error. The upper bound property requires the recovered solution to be both statically ... -
Error assessment and mesh adaptivity for regularized continuous failure models
Pannachet, T.; Díez, Pedro; Askes, Harm; Sluys, L. J. (2009-11-26)
Article
Accés obertThis paper deals with the adaptive finite element analysis of structural failure. A gradient-enhanced damage model has been chosen to simulate material degradation. Since this model is regularized in the post-peak regime, ... -
Error assessment for timeline-dependent quantities of interest in transient elastodynamics
Verdugo, Francesc; Parés Mariné, Núria; Díez, Pedro (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis work presents a new approach to assess the error in speci c quantities of interest in the framework of linear elastodynamics. In particular, a new type of quantities of interest (referred as timeline-dependent ... -
Error assessment in structural transient dynamics
Verdugo Rojano, Francesc; Parés Mariné, Núria; Díez, Pedro (2014-03-01)
Article
Accés obertThis paper presents in a unified framework the most representative state-of-the-art techniques on a posteriori error assessment for second order hyperbolic problems, i.e., structural transient dynamics. For the sake of ... -
Error estimation and adaptivity for nonlinear FE analysis
Huerta, Antonio; Rodríguez Ferran, Antonio; Díez, Pedro (2002-03)
Article
Accés obertAn adaptive strategy for nonlinear finite-element analysis, based on the combination of error estimation and h-remeshing, is presented. Its two main ingredients are a residual-type error estimator and an unstructured ... -
Error estimation and adaptivity for PGD based on complementary solutions applied to a simple 1D problem
Reis, Jonatha; Almeida, José Paulo Moitinho de; Díez, Pedro; Zlotnik, Sergio (Springer, 2020-10-30)
Article
Accés obertReduced order methods are powerful tools for the design and analysis of sophisticated systems, reducing computational costs and speeding up the development process. Among these reduced order methods, the Proper Generalized ... -
Error estimation and quality control
Díez, Pedro; Parés Mariné, Núria; Huerta, Antonio (John Wiley & sons, 2010-12-15)
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Error estimation for adaptive computations on shell structures
Díez, Pedro; Huerta, Antonio (2000-03)
Article
Accés obertThe finite element discretization of a shell structure introduces two kinds of errors: the error in the functional approximation and the error in the geometry approximation. The first is associated with the finite dimensional ...