Browsing by Author "Cornejo Velázquez, Alejandro"
Now showing items 1-15 of 15
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A fully Lagrangian formulation for fluid-structure interaction problems with free-surface flows and fracturing solids
Cornejo Velázquez, Alejandro; Franci, Alessandro; Zárate Araiza, José Francisco; Oñate Ibáñez de Navarra, Eugenio (2021-07)
Article
Restricted access - publisher's policyThis paper presents a novel coupled formulation for fluid-structure interaction (FSI) problems involving free-surface fluid flows, fracture phenomena, solid mutual contact and large displacements. The numerical formulation ... -
A Lagrangian–Eulerian procedure for the coupled solution of the Navier–Stokes and shallow water equations for landslide-generated waves
Maso Sotomayor, Miguel; Franci, Alessandro; Pouplana Sarda, Ignasi de; Cornejo Velázquez, Alejandro; Oñate Ibáñez de Navarra, Eugenio (Springer, 2022-07-30)
Article
Open AccessThis work presents a partitioned method for landslide-generated wave events. The proposed strategy combines a Lagrangian Navier Stokes multi-fluid solver with an Eulerian method based on the Boussinesq shallow water ... -
A unified non-linear energy dissipation-based plastic-damage model for cyclic loading
Cornejo Velázquez, Alejandro; Jiménez Reyes, Sergio; Barbu, Lucia Gratiela; Oller Martínez, Sergio Horacio; Oñate Ibáñez de Navarra, Eugenio (2022-10)
Article
Open AccessA new energy-dissipation-based rate-independent constitutive law within the framework of elastoplasticity coupled with damage is proposed. With this methodology, the inelastic strains and the stiffness degradation exhibited ... -
Analysis of pre-tensioned structures by means of a constitutive serial-parallel rule of mixtures
Barbu, L. G.; Escudero, C.; Cornejo Velázquez, Alejandro; Martínez, X.; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (CIMNE, 2017)
Conference report
Open AccessThe main purpose of this paper is to develop a reliable method based on a threedimensional (3D) finite-element (FE) model to simulate the constitutive behaviour of reinforced concrete structures strengthened with post-tensioned ... -
Analysis of pre-tensioned structures by means of a constitutive Serial-Parallel rule of mixtures
Barbu, Lucia Gratiela; Escudero Torres, Cuauhtemoc; Cornejo Velázquez, Alejandro; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2017)
Conference report
Open AccessThe main purpose of this paper is to develop a reliable method based on a three-dimensional (3D) finite-element (FE) model to simulate the constitutive behaviour of reinforced concrete structures strengthened with ... -
Analysis of the mock-up of a reactor containment building: comparison with experimental results
Jiménez Reyes, Sergio; Cornejo Velázquez, Alejandro; Barbu, Lucia Gratiela; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2020-04)
Article
Open AccessThe results of a predictive analysis of the mock-up of a reactor containment building, based on computer numerical simulation, are presented in this paper and compared with the results obtained in the context of the VeRCoRs ... -
Combination of an adaptive remeshing technique with a coupled FEM–DEM approach for analysis of crack propagation problems
Cornejo Velázquez, Alejandro; Mataix Ferrándiz, Vicente; Zárate Araiza, José Francisco; Oñate Ibáñez de Navarra, Eugenio (Springer, 2020-07)
Article
Open AccessThis paper presents an enhanced coupled approach between the finite element method (FEM) and the discrete element method (DEM) in which an adaptive remeshing technique has been implemented. The remeshing technique is based ... -
Combination of the finite element method and particle-based methods for predicting the failure of reinforced concrete structures under extreme water forces
Oñate Ibáñez de Navarra, Eugenio; Cornejo Velázquez, Alejandro; Zárate Araiza, José Francisco; Kashiyama, Kazuo; Franci, Alessandro (Elsevier, 2022-01)
Article
Restricted access - publisher's policyWe present a combination of the Finite Element Method (FEM), the Particle Finite Element Method (PFEM), and the Discrete Element Method (DEM) for modeling and analyzing the failure of reinforced concrete structures under ... -
Evaluación de la técnica acoplada de elementos finitos y elementos discretos en problemas de fractura de rocas. Aplicación a voladuras en el frente de túneles
Cornejo Velázquez, Alejandro (Universitat Politècnica de Catalunya, 2017-06-14)
Master thesis
Open AccessEl objetivo de la presente tesis es evaluar la eficiencia de un nuevo método numérico que acopla el conocido método de elementos finitos (MEF) con el método de elementos discretos (DEM) para la predicción de las ... -
Failure pressure analysis of a nuclear reactor prestressed concrete containment building
Jiménez Reyes, Sergio; Cornejo Velázquez, Alejandro; Barbu, Lucia Gratiela; Barbat Barbat, Horia Alejandro; Oller Martínez, Sergio Horacio (Elsevier, 2021-06)
Article
Restricted access - publisher's policyThe failure analysis of an existing and operational nuclear power plant reactor containment building subjected to an accident internal pressure is studied in this paper. The computation is based on the Finite Element Method ... -
A fully Lagrangian formulation for fluid-structure interaction between free-surface flows and multi-fracturing solids
Cornejo Velázquez, Alejandro (Universitat Politècnica de Catalunya, 2020-12-21)
Doctoral thesis
Open AccessIt is well known that in civil engineering structures are designed so that they remain,whenever possible, in an elastic regime and with their mechanical properties intact. The truth isthat in reality there are uncertainties ... -
Methodology for the analysis of post-tensioned structures using a constitutive serial-parallel rule of mixtures: large scale non-linear analysis
Barbu, Lucia Gratiela; Cornejo Velázquez, Alejandro; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2019-05)
Article
Open AccessThe main purpose of this paper is to develop a reliable method based on a three-dimensional (3D) finite-element (FE) model to simulate the constitutive behaviour of reinforced concrete structures strengthened with ... -
Numerical simulation of a rapid fatigue test of high Mn-TWIP steel via a high cycle fatigue constitutive law
Gonçalves Junior, Luis Antonio; Jiménez Reyes, Sergio; Cornejo Velázquez, Alejandro; Barbu, Lucia Gratiela; Parareda Oriol, Sergi; Casellas Padró, Daniel (2023-03)
Article
Open AccessThe generation of reliable data in the high cycle fatigue domain is crucial to support further metallurgic developments of fatigue optimized steel grades. Commonly employed for this aim, traditional standardized characterization ... -
On the numerical study of fatigue process in rail heads by means of an isotropic damage based high-cycle fatigue constitutive law
Jiménez Reyes, Sergio; Barbu, Lucia Gratiela; Cornejo Velázquez, Alejandro; Oller Martínez, Sergio Horacio (Elsevier, 2022-01)
Article
Restricted access - publisher's policyThe fatigue phenomenon has been historically related to the railway industry. Nowadays, thanks to the high quality of the materials used, most of the recorded problems have been overcome although there are still degradation ... -
Proyecto constructivo de pasarela peatonal sobre el río Besós
Cornejo Velázquez, Alejandro (Universitat Politècnica de Catalunya, 2015-05)
Bachelor thesis
Open Access