Exploració per autor "Cervera Ruiz, Miguel"
Ara es mostren els items 62-81 de 137
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FEM analysis of orthotropic masonry walls via localized damage models
Pelà, Luca; Cervera Ruiz, Miguel; Roca Fabregat, Pedro (2010)
Text en actes de congrés
Accés restringit per política de l'editorialIn finite element analysis of masonry structures, continuum damage models are generally combined with a smeared description of damage. This common approach however, fails to provide a realistic simulation of damage and ... -
Finite element analysis and experimental validation of the thermomechanical behavior in laser solid forming of Ti-6Al-4V
Lu, Xufei; Lin, Xin; Chiumenti, Michele; Cervera Ruiz, Miguel (Elsevier, 2018-05)
Article
Accés obertA three-dimensional (3D) thermomechanical coupled model for Laser Solid Forming (LSF) of Ti-6Al-4V alloy has been calibrated through experiments of 40-layers metal deposition using different scanning strategies. The ... -
Finite element modeling of quasi-brittle cracks in 2D and 3D with enhanced strain accuracy
Cervera Ruiz, Miguel; Barbat Vlad, Gabriel; Chiumenti, Michele (2017-11)
Article
Accés obertThis paper discusses the finite element modeling of cracking in quasi-brittle materials. The problem is addressed via a mixed strain/displacement finite element formulation and an isotropic damage constitutive model. The ... -
Finite element modelling of internal and multiple localized cracks
Saloustros, Savvas; Pelà, Luca; Cervera Ruiz, Miguel; Roca Fabregat, Pedro (2017-02)
Article
Accés obertTracking algorithms constitute an efficient numerical technique for modelling fracture in quasi-brittle materials. They succeed in representing localized cracks in the numerical model without mesh-induced directional bias. ... -
Formulación estabilizada de elementos finitos triangulares y tetraédricos para problemas de incompresibilidad en deformaciones infinitesimales
Valverde Guzmán, Quino Martín; Chiumenti, Michele; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos (Universitat Politècnica de Catalunya, 2005)
Article
Accés obertSe presenta una formulación en multiescalas del método de elementos finitos capaz de estabilizar el comportamiento de elementos mixtos en problemas de elasticidad y de plasticidad incompresibles en deformaciones infinitesimales. ... -
Formulación estabilizada de elementos finitos triangulares y tetraédricos para problemas de incompresibilidad en grandes deformaciones
Valverde Guzmán, Quino Martín; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel (Universitat Politècnica de Catalunya, 2006)
Article
Accés obertSe presenta una formulación en multiescalas del método de elementos finitos capaz de estabilizar el comportamiento de elementos mixtos en problemas de elasticidad y de plasticidad incompresibles en grandes deformaciones. ... -
Formulación mixta estabilizada explícita de elementos finitos para sólidos compresibles y quasi-incompresibles
Lafontaine, N. M.; Rossi, Riccardo; Cervera Ruiz, Miguel; Chiumenti, Michele (Universitat Politècnica de Catalunya. CIMNE, 2017-01)
Article
Accés obertEl presente estudio presenta una formulación mixta de elementos finitos capaz de abordar problemas quasiincompresibles en forma explícita. Esta formulación se aplica a elementos con interpolaciones independientes e iguales ... -
High-fidelity prediction of crack formation in 2D and 3D pullout tests
Benedetti, Lorenzo; Cervera Ruiz, Miguel; Chiumenti, Michele (2016-08)
Article
Accés obertThis paper presents the 2D and 3D numerical analysis of pullout tests on steel anchorages in concrete blocks using standard and mixed finite elements. A novel (stabilized) mixed formulation in the variables of total strain ... -
In situ measurements and thermo-mechanical simulation of Ti–6Al–4V laser solid forming processes
Lu, Xufei; Lin, Xin; Chiumenti, Michele; Cervera Ruiz, Miguel; Hu, Yunlong; Ji, Xianglin; Ma, Liang; Huang, Weidong (2019-04)
Article
Accés obertResidual stresses and distortions are two technical obstacles for popularizing the additive manufacturing (AM) technology. The evolution of the stresses in AM components during the thermal cycles of the metal depositing ... -
Local and global approaches to Friction Stir Welding
Dialamishabankareh, Narges; Chiumenti, Michele; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos (International Centre for Numerical Methods in Engineering (CIMNE), 2016)
Llibre
Accés obertThis paper deals with the numerical simulation of Friction Stir Welding (FSW) processes. FSW techniques are used in many industrial applications and particularly in the aeronautic and aerospace industries, where the quality ... -
Local–global strategy for the prediction of residual stresses in FSW processes
Dialami, Narges; Cervera Ruiz, Miguel; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos (2017-02)
Article
Accés obertThis work describes the local–global strategy proposed for the computation of residual stresses in friction stir welding (FSW) processes. A coupling strategy between the analysis of the process zone nearby the pin tool ... -
Material flow visualization in Friction Stir Welding via particle tracing
Dialami Shabandarech, Narges; Chiumenti, Michele; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos; Ponthot, Jean Philippe (2015-04)
Article
Accés obertThis work deals with the modeling of the material flow in Friction Stir Welding (FSW) processes using particle tracing method. For the computation of particle trajectories, three accurate and computationally efficient ... -
Mecánica avanzada de estructuras
Cervera Ruiz, Miguel; González Lopez, Jose Manuel (International Centre for Numerical Methods in Engineering (CIMNE), 2020)
Llibre
Accés restringit per política de l'editorial"Mecánica Avanzada de Estructuras" tiene el objetivo de proporcionar a los estudiantes de grado de ingeniería una visión y una comprensión extendida del análisis estructural y de sus aplicaciones, máas allá del comportamiento ... -
Mecánica de estructuras
Cervera Ruiz, Miguel; Blanco Díaz, Elena Irma (Edicions UPC, 2002)
Llibre
Accés restringit a la comunitat UPCConté: 1. Resistencia de materiales 2. Métodos de análisis -
Mechanical analysis and optimized performance of G-Code driven material extrusion components
Rivet Fernández, Iván; Dialamishabankareh, Narges; Cervera Ruiz, Miguel; Chiumenti, Michele; Valverde Guzmán, Quino Martín (Elsevier, 2023-01)
Article
Accés restringit per política de l'editorialIn this work an end-to-end optimization procedure to maximize the mechanical performance of Additive Manufacturing (AM) components is presented. Material Extrusion (ME) is the selected demonstrative AM technology, but the ... -
Mechanism-Based damage and failure of Fused Filament Fabrication components
Rivet Fernández, Iván; Dialamishabankareh, Narges; Cervera Ruiz, Miguel; Chiumenti, Michele (Elsevier, 2024-02)
Article
Accés restringit per política de l'editorialFused Filament Fabrication (FFF) is a polymer-based Additive Manufacturing (AM) technology that produces complex layered components. The characterization of the inherited orthotropic properties of FFF components and their ... -
Mitigation of residual stresses and microstructure homogenization in directed energy deposition processes
Lu, Xufei; Chiumenti, Michele; Cervera Ruiz, Miguel; Zhang, Guohao; Lin, Xin (2022-12)
Article
Accés obertIn additive manufacturing (AM), residual stresses and microstructural inhomogeneity are detrimental to the mechanical properties of as-built AM components. In previous studies, the reduction of the residual stresses and ... -
Mixed Stabilized Finite Element Methods in Nonlinear Solid Mechanics. Part I: Formulation
Cervera Ruiz, Miguel; Chiumenti, Michele; Codina, Ramon (2009-07-22)
Article
Accés obertThis paper exploits the concept of stabilized finite element methods to formulate stable mixed stress/displacement and strain/displacement finite elements for the solution of nonlinear solid mechanics problems. The different ... -
Mixed Stabilized Finite Element Methods in Nonlinear Solid Mechanics. Part II: Strain Localization
Cervera Ruiz, Miguel; Chiumenti, Michele; Codina, Ramon (2009-07-22)
Article
Accés obertThis paper deals with the question of strain localization associated with materials which exhibit softening due to tensile straining. A standard local isotropic Rankine damage model with strain-softening is used as exemplary ... -
Mixed stabilized finite element methods in nonlinear solid mechanics. Part III: compressible and incompressible plasticity
Cervera Ruiz, Miguel; Chiumenti, Michele; Benedetti, Lorenzo; Codina, Ramon (2015-03)
Article
Accés obertThis paper presents the application of a stabilized mixed strain/displacement finite element formulation for the solution of nonlinear solid mechanics problems involving compressible and incompressible plasticity. The ...