Exploració per autor "Díez, Pedro"
Ara es mostren els items 38-57 de 145
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Bonding performance of glass fiber-reinforced polymer bars under the influence of deformation characteristics
Xie, Fang; Tian, Wanming; Díez, Pedro; Zlotnik, Sergio; García González, Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2023-06-07)
Article
Accés obertGlass fiber-reinforced polymer (GFRP) of high performance, as a relatively ideal partial or complete substitute for steel, could increase the possibility of adapting structures to changes in harsh weather environments. ... -
Bounds for quantities of interest and adaptivity in the element-free Galerkin method
Vidal Seguí, Yolanda; Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (Wiley and Sons, 2008-07)
Article
Accés obertA novel approach to implicit residual-type error estimation in mesh-free methods and an adaptive refinement strategy are presented. This allows computing upper and lower bounds of the error in energy norm with the ultimate ... -
Bounds of functional outputs for parabolic problems. Part I: Exact bounds of the discontinuous Galerkin time discretization
Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (2008-03)
Article
Accés obertClassical implicit residual type error estimators require using an underlying spatial finer mesh to compute bounds for some quantity of interest. Consequently, the bounds obtained are only guaranteed asymptotically that ... -
Bounds of functional outputs for parabolic problems. Part II: Bounds of the exact solution
Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (2008-03)
Article
Accés obertThe paper introduces a methodology to compute upper and lower bounds for linear-functional outputs of the exact solutions of parabolic problems. In this second part, the bounds account for the error both in space and time. ... -
Building a certified reduced basis for coupled thermo-hydro-mechanical systems with goal-oriented error estimation
Larion, Ygee; Zlotnik, Sergio; Massart, Thierry J.; Díez, Pedro (Springer, 2020-09)
Article
Accés obertA goal-oriented a-posteriori error estimator is developed for transient coupled thermo-hydro-mechanical (THM) parametric problems solved with a reduced basis approximation. The estimator assesses the error in some specific ... -
Computable bounds of functional outputs in linear visco-elastodynamics
Verdugo Rojano, Francesc; Díez, Pedro (2012)
Article
Accés obertThis work presents a new technique yielding computable bounds of quantities of interest in the framework of linear visco-elastodynamics. A novel expression for the error representation is introduced, alternative to the ... -
Computable bounds of linear functional outputs in linear visco- elastodynamics
Verdugo Rojano, Francesc; Díez, Pedro (2012)
Text en actes de congrés
Accés obertThis work presents a new technique yielding computable bounds of quantities of interest in the framework of linear visco-elastodynamics. A novel expression for the error representation is introduced, alternative to the ... -
Computable exact bounds for linear outputs from stabilized solutions of the advection-diffusion-reaction equation
Parés Mariné, Núria; Díez, Pedro; Huerta, Antonio (John Wiley & Sons, 2013-02-01)
Article
Accés obert -
Convergence of finite elements enriched with meshless methods
Fernández Méndez, Sonia; Díez, Pedro; Huerta, Antonio (2003-11)
Article
Accés obertA combined hierarchical approximation based on finite elements and mesh-less methods is proposed and studied. Finite Elements are enriched adding hierarchical shape functions based on a particle distribution. Convergence ... -
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)
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, ... -
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)
Text en actes de congrés
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)
Text en actes de congrés
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)
Text en actes de congrés
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)
Text en actes de congrés
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 ...