Exploració per autor "Martínez García, Javier"
Ara es mostren els items 29-48 de 58
-
Large scale validation of a new isotropic hardening law for the barcelona plastic damage model under ultra low cycle fatigue conditions
Barbu, Lucia Gratiela; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (CIMNE, 2015)
Text en actes de congrés
Accés obertThis paper presents the results of finite element simulations made on a bent pipe subjected to an in-plane variable cyclic displacement combined with internal pressure. The results of the numerical analyses will be compared ... -
Methodology for the analysis of post-tensioned structures using a constitutive serial-parallel rule of mixtures
Cornejo, Alejandro; Barbu, Lucia Gratiela; Escudero Torres, Cuauhtemoc; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2018-09)
Article
Accés obertThe 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 ... -
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
Accés obertThe 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 ... -
Model-wise algorithm for the resolution of fatigue problems
Barbu, Lucia Gratiela; Oller Martínez, Sergio Horacio; Martínez García, Javier; Barbat Barbat, Horia Alejandro (CIMNE, 2015)
Text en actes de congrés
Accés obertThe present work presents a general constitutive model formulation and a numerical algorithm for automatically selecting the appropriate coupling of damage and plasticity as a function of the number of cycles the material ... -
Modelling the elastic behaviour of carbon nanotube-reinforced composites
Otero-Gruer, Fermín; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomón, Ramón Omar (2011)
Text en actes de congrés
Accés restringit per política de l'editorialCarbon nanotubes (CNTs), since their discovery by Lij ima in 1991 [1], are considered a new generation of reinforcement [2]. Their "nano" size structure makes them potentially free of defects, which provides them with ... -
Modelling viscoelastic behaviour of carbón nanotube-reinforced thermo-plastics
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomón, Ramón Omar (Asociación Argentina de Mecánica Computacional, 2012)
Text en actes de congrés
Accés obertCarbon nanotubes (CNTs), since their discovery by Lijima (S. Lijima, Nature, 354:56-58 (1991)), are considered a new generation of reinforcement. Their "nano" size structure makes them potentially free of defects, which ... -
Multi-objective multi-scale optimization of composite structures, application to an aircraft overhead locker made with bio-composites
Martínez García, Javier; Pons Prats, Jordi; Turon Pujol, Francesc; Coma Company, Martí; Barbu, Lucia Gratiela; Bugeda Castelltort, Gabriel (Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-28)
Article
Accés obertThe use of composite materials has grown exponentially in transport structures due to their weight reduction advantages, added to their capability to adapt the material properties and internal micro-structure to the ... -
Multi-scale procedure for the mechanical analysis of composite laminate structures considering mixed boundary conditions
Turon Pujol, Francesc; Otero Gruer, Fermín Enrique; Martínez García, Javier (2023-10)
Article
Accés obertThis paper presents a multi-scale procedure for the study of flat composite structures with discontinuities. In this procedure, the structure is solved using shell elements while the laminate performance and the structural ... -
Multiscale computational homogenization
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier (Centro de Investigación en Matemáticas, 2017)
Capítol de llibre
Accés restringit per política de l'editorial -
Multiscale computational homogenization: review and proposal of a new enhanced-first-order method
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier (2018-04)
Article
Accés obertThe continuous increase of computational capacity has encouraged the extensive use of multiscale techniques to simulate the material behaviour on several fields of knowledge. In solid mechanics, the multiscale approaches ... -
Multiscale numerical modelling of microstructured reinforced composites
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier (International Centre for Numerical Methods in Engineering (CIMNE), 2016)
Llibre
Accés obertMost of the existing materials around us can be considered composite materials, since they are composed by several phases or components at certain spatial scale. The physical and chemical properties of composites, as occurs ... -
Multiscale thermo-mechanical analysis of multi-layered coatings in solar thermal applications
Montero-Chacón, Francisco; Zaghi, Stefano; Rossi, Riccardo; García-Pérez, Elena; Heras Pérez, Irene; Martínez García, Javier; Oller Martínez, Sergio Horacio; Doblaré, Manuel (2017-05)
Article
Accés obertSolar selective coatings can be multi-layered materials that optimize the solar absorption while reducing thermal radiation losses, granting the material long-term stability. These layers are deposited on structural materials ... -
Novel approach combining two homogenization procedures for the analysis of nonwoven biocomposites
Martínez García, Javier; Bachmann, Jens; Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Bugeda Castelltort, Gabriel (Taylor & Francis Group, 2022-11-29)
Article
Accés obertComposite materials with complex internal microstructures, such as the flax nonwoven bio-composite studied in this work, require advanced numerical models in order to predict their mechanical performance. Otherwise, the ... -
Nuevo modelo discreto multiescala (DM) para análisis no-lineales de materiales compuestos
Zaghi, Stefano; Martínez García, Javier; Rossi, Riccardo (2018-10-15)
Article
Accés obertEn los últimos años el estudio del comportamiento de los materiales a nivel microscópico ha aumentado significativamente en términos de diseño de materiales de altas prestaciones. A pesar de los recientes avances de ... -
Numerical analysis of interlaminar stresses in open-hole laminates under compression
Solis, A.; Sanchez Saez, S.; Martínez García, Javier; Barbero Pozuelo, Enrique (2019-06-01)
Article
Accés obertIn this paper, the interlaminar stresses in open-hole laminates subjected to compressive loads are analysed using a numerical model. This model implements the Serial/Parallel Mixing Theory (S/PMT) and a Continuum Damage ... -
Numerical and experimental procedure for material calibration using the serial/parallel mixing theory, to analyze different composite failure modes
Jurado Granados, Joel; Martínez García, Javier; Nash, Niamh; Bachour, Carlos; Manolakis, Ioannis; Comer, Anthony; Capua, Daniel di (2019-01-01)
Article
Accés obertThis work proposes a calibration procedure to obtain the material parameters required by the Serial/Parallel Mixing Theory for the analysis of composites. A set of experimental tests are defined to obtain the main composite ... -
Numerical homogenization for composite materials analysis: comparison with other micro mechanical formulations
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomón, Ramón Omar (2015-04)
Article
Accés obertThis work presents a two-scale homogenization procedure to analyze three dimension composite structures by FEM. The theory implemented is compared with other micro-structural formulations: micro models and serial parallel ... -
Numerical modelling of behaviour of carbon nanotube-reinforced composites
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomon, O. (CIMNE, 2011)
Text en actes de congrés
Accés obertSince their discovery by Lijima in 1991[1], carbon nanotubes (CNTs), are considered a new generation of reinforcement [2]. Their "nano" size structure makes them potentially free of defects, which provides them with excellent ... -
Numerical modelling of behaviour of carbon nanotube-reinforced composites
Otero-Gruer, Fermín; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomón, Ramón Omar (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2011)
Text en actes de congrés
Accés obertSince their discovery by Lijima in 1991[1], carbon nanotubes (CNTs), are considered a new generation of reinforcement [2]. Their "nano" size structure makes them potentially free of defects, which provides them with ... -
Numerical tool to study structural reinforcement of steel reinforced concrete (RC) structures under seismic loads using fiber reinforced polymers (FRP)
Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2007-09-03)
Comunicació de congrés
Accés restringit per política de l'editorialStrengthening or retrofitting existing structures in order to increase their ductility and improve their seismic response has traditionally been accomplished using conventional materials and construction techniques. Composite ...