Exploració per autor "Díez, Pedro"
Ara es mostren els items 101-120 de 145
-
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 ... -
Numerical modelling of multi-phase multi-component reactive transport in the Earth's interior
Oliveira, Beñat; Afonso, Juan Carlos; Zlotnik, Sergio; Díez, Pedro (2018-01-01)
Article
Accés obertWe present a conceptual and numerical approach to model processes in the Earth's interior that involve multiple phases that simultaneously interact thermally, mechanically and chemically. The approach is truly multiphase ... -
Numerical modelling of tectonic plates subduction using X-FEM
Zlotnik, Sergio; Díez, Pedro; Fernández, M.; Verges, J. (2007-09)
Article
Accés obertThe numerical modelling of plate subduction requires solving a coupled thermo-mechanical highly-nonlinear transient problem. The mechanical description of the phenomenon results in a multiphase quasi-static Stokes flow, ... -
Numerical tool for modeling steel fiber reinforced concrete
Molins i Borrell, Climent; Pros Parés, Alba; Díez, Pedro (International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialSteel Fiber Reinforced Concrete (SFRC) allows overcoming brittleness and weakness in tension, the main drawbacks of plain concrete. The goal of the present presentation is to present an ad-hoc numerical strategy to account ... -
On the statement and numerical solution of the thermal problem within inversion methods for the study of lithospheric structure
Fernández, Mariano Tomás; Zlotnik, Sergio; Díez, Pedro (European Geosciences Union (EGU), 2023)
Comunicació de congrés
Accés obertOne of the goals of geophysicists is mapping and understanding the current structure of the Earth including its variations in composition, temperature and dynamical state. This structure is only accessible via indirect ... -
Parametric electromagnetic analysis of radar-based Advanced Driver Assistant Systems
Vermiglio, Simona; Champaney, Victor; Sancarlos, Abel; Daim, Fatima; Kedzia, Jean Claude; Duval, Jean Louis; Díez, Pedro; Chinesta Soria, Francisco (Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-05)
Article
Accés obertEfficient and optimal design of radar-based Advanced Driver Assistant Systems (ADAS) needs the evaluation of many different electromagnetic solutions for evaluating the impact of the radome on the electromagnetic wave ... -
PGD-based “Computational Vademecum” for efficient design, optimization and control
Chinesta, Francisco; Leygue, Adrien; Bordeu, F.; Cueto Prendes, Elias; González, David; Alfaro, Icíar; Ammar, Amine; Huerta, Antonio; Díez, Pedro (2013)
Article
Accés restringit per política de l'editorialD espite the impressive progresses attained by simulation capabilities and techniques, some challenging problems remain today intractable. These prob- lems, that are common to many branches of science and engineering, ... -
Physics-based manifold learning in scaffolds for tissue engineering: application to inverse problems
Muixí Ballonga, Alba; Zlotnik, Sergio; García González, Alberto; Díez, Pedro (2022-10-03)
Article
Accés obertIn the field of bone regeneration, insertion of scaffolds favours bone formation by triggering the differentiation of mesenchymal cells into osteoblasts. The presence of Calcium ions (Ca2+) in the interstitial fluid across ... -
Preface
Chamoin, Ludovic; Díez, Pedro (Springer, 2016)
Capítol de llibre
Accés restringit per política de l'editorialThe error associated with a numerical solution is intimately related with the residual, that is the lack of verification of the equation by the approximated solution. The residual is computable but obtaining the exact ... -
Preface
Wiberg, N E; Díez, Pedro (2006-01)
Article
Accés obert -
Probabilistic analysis of an a posteriori error estimator for finite elements
Díez, Pedro; Egozcue Rubí, Juan José (2001-08)
Article
Accés obertA residual type a posteriori error estimator for finite elements is analyzed using a new technique. In this case, the error estimate is the result of two consecutive projections of the exact error on two finite-dimensional ...