Exploració per autor "Martínez García, Javier"Més informacióMés informació

Ara es mostren els items 1-20 de 60

    • A communication-based algorithm to avoid the human body effect on antennas 

      Martínez García, Javier (Universitat Politècnica de Catalunya, 2011-07-21)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Qing hua da xue
      English: The aim of this project is to design and implement a simple and reliable system able to minimize the negative effect that users cause on the antenna performance of mobile devices when interacting with these. The ...

    • A laminated structural finite element for the behavior of large non-linear reinforced concrete structures 

      Escudero Torres, Cuauhtemoc; Oller Martínez, Sergio Horacio; Martínez García, Javier; Barbat Barbat, Horia Alejandro (2016-10)
      Article
      Accés obert
      In order to correctly predict the kinematics of complex structures, analysis using three-dimensional finite elements (3DFEs) seems to be the best alternative. However, simulation of large multi-layered structures with many ...

    • A river bed hydrokinetic turbine: a laminated composite material rotor design 

      Oller Aramayo, Sergio A.; Nallim, Liz G.; Oller Martínez, Sergio Horacio; Martínez García, Javier (International Centre for Numerical Methods in Engineering (CIMNE), 2017)
      Llibre
      Accés obert
      This chapter presents the composite materials applied to Water Current Turbine (WCT) hydrokinetic turbines. Here will be briefly described the features of these turbines, the fluid-dynamic behavior of the rotor, and its ...

    • Adaptive and off-line techniques for non-linear multiscale analysis 

      Zaghi, Stefano; Martínez García, Javier; Rossi, Riccardo; Petracca, Massimo (2018-08-22)
      Article
      Accés obert
      This paper presents two procedures, based on the numerical multiscale theory, developed to predict the mechanical non-linear response of composite materials under monotonically increasing loads. Such procedures are designed ...

    • An efficient multi-scale method for non-linear analysis of composite structures 

      Otero Gruer, Fermín Enrique; Martínez García, Javier; Oller Martínez, Sergio Horacio; Salomon Rotlisbeger, Ramon Omar (2015-11-01)
      Article
      Accés obert
      The use of multi-scale procedures is encouraged by the continuous increase of computational capacity, but it is still a challenge performing a non-linear analysis of real composite structures without the aid of large ...

    • 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)
      Text en actes de congrés
      Accés obert
      The 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 ultra low cycle fatigue problems with the Barcelona plastic damage model 

      Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbu, Lucia Gratiela; Barbat Barbat, Horia Alejandro (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
      Text en actes de congrés
      Accés obert
      This paper presents a plastic formulation based on the Barcelona plastic damage model capable of predicting the material failure due to Ultra Low Cycle Fatigue. This is achieved taking into account the fracture energy ...

    • Analysis of ultra low cycle fatigue problems with the barcelona plastic damage model 

      Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbu, Lucia Gratiela; Barbat Barbat, Horia Alejandro (CIMNE, 2013)
      Text en actes de congrés
      Accés obert
      This paper presents a plastic formulation based on the Barcelona plastic damage model ([1], [2]) capable of predicting the material failure due to Ultra Low Cycle Fatigue. This is achieved taking into account the fracture ...

    • Analysis of Ultra Low Cycle Fatigue problems with the Barcelona plastic damage model and a new isotropic hardening law 

      Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbu, Lucia Gratiela; Barbat Barbat, Horia Alejandro; de Jesus, A.M.P. (2015-04)
      Article
      Accés obert
      This paper presents a plastic-damage formulation and a new isotropic hardening law, based on the Barcelona plastic damage model initially proposed by Lubliner et al. (1989) [1], which is capable of predicting steel failure ...

    • Análisis no-lineal de materiales compuestos mediante la teoría de mezclas serie-paralelo 

      Martínez García, Javier; Oller Martínez, Sergio Horacio; Rastellini, Fernando G. (OmniaScience, 2014)
      Capítol de llibre
      Accés obert
      Este libro presenta una panorámica del estado actual de los materiales compuestos y sus aplicaciones más relevantes en la obra civil y la edificación.

    • Análisis numérico de Eco-composites con procedimientos de homogeneización 

      Barbu, Lucia Gratiela; Martínez García, Javier; Oller Martínez, Sergio Horacio (2020-01)
      Article
      Accés obert
      Los procedimientos de homogeneización han ido ganando cada vez más énfasis en el campo del análisis numérico de los materiales compuestos. Un procedimiento de homogenización se basa sobre la hipótesis de que existe un set ...

    • Análisis numérico de estructuras de hormigón reforzadas con FRP por medio de la teoría de mezclas serie/paralelo 

      Molina, Maritzabel; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro; Martínez García, Javier (Universitat Politècnica de Catalunya. CIMNE, 2010)
      Article
      Accés obert
      La simulación numérica del comportamiento de los materiales compuestos es un campo en desarrollo cuya aplicación a estructuras ha experimentado avances importantes que han conducido a mejoras en el refuerzo de las mismas. ...

    • Análisis numérico de la reparación y refuerzo de estructuras con FRP 

      Oller Martínez, Sergio Horacio; Molina, Maritzabel; Vielma Pérez, Juan Carlos; Martínez García, Javier; Barbat Barbat, Horia Alejandro; Nallim, Liz G. (OmniaScience, 2014)
      Capítol de llibre
      Accés obert
      Este libro presenta una panorámica del estado actual de los materiales compuestos y sus aplicaciones más relevantes en la obra civil y la edificación.

    • Application of the serial/parallel mixing theory to the seismic analysis of RC structures reinforced with FRP 

      Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro; Martínez García, Javier (2007-07-12)
      Text en actes de congrés
      Accés obert
      Strengthening or retrofitting of existing structures in order to increase their ductility and improve their seismic response has traditionally been accomplished using conventional materials and constructions techniques. ...

    • bROM: An extension of beam theory through model order reduction 

      Rubio Serrano, Raúl; Ferrer Ferré, Àlex; Hernández Ortega, Joaquín Alberto; Martínez García, Javier (Elsevier, 2024-07)
      Article
      Accés restringit per política de l'editorial
      Beam analysis played a crucial role in the design of structures throughout modern history. Classical beam theories rely on analytical derivations under certain a priori kinematic assumptions (and are accurate with low ...

    • Caracterización de la delaminación en materiales compuestos mediante la teoría de mezclas serie/paralelo 

      Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbero, E. (Universitat Politècnica de Catalunya. CIMNE, 2011)
      Article
      Accés obert
      Este artículo presenta un nuevo procedimiento con el que simular el fallo por delaminación en materiales compuestos. El método propuesto utiliza la teoría de mezclas serie/paralelo, desarrollada por Fernando Rastellini, ...

    • Composite materials 

      Oller Martínez, Sergio Horacio; Oller Aramayo, Sergio A.; Nallim, Liz G.; Martínez García, Javier (2018-02)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This chapter presents the composite materials applied to water current turbine (WCT) hydrokinetic turbines. Here will be briefly described the features of these turbines, the fluid-dynamic behavior of the rotor, and its ...

    • Cost-effective measurement equipment and data analysis tool for structural health monitoring. Case study: metro railway bridge 

      Sierra, Pablo Leonel; Chacón Flores, Rolando Antonio; Martínez García, Javier (2022)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Structural Health Monitoring (SHM) of bridges is getting special attention of infrastructure management agencies, due to its success in minimizing maintenance costs. The acquisition of structural behaviour data and its ...

    • Coupled plastic damage model for low and ultra-low cycle seismic fatigue 

      Barbu, Lucia Gratiela; Oller Martínez, Sergio Horacio; Martínez García, Javier; Barbat Barbat, Horia Alejandro (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
      Text en actes de congrés
      Accés obert
      This paper presents the theoretical framework for a coupled plastic damage constitutive model valid for materials subjected to cyclic loads that lead to low and ultra-low cycle fatigue. Two numerical examples were presented ...

    • Damage assessment using modeling of large-scale confined masonry building 

      Escudero Torres, Cuauhtemoc; Oller Martínez, Sergio Horacio; Martínez García, Javier; Barbat Barbat, Horia Alejandro; Dávalos Chargoy, César Emilio (American Society of Civil Engineers, 2018-12-01)
      Article
      Accés obert
      The seismic behavior of a representative medium-rise building of Mexico City has been evaluated using the capacity spectrum method. This method is widely used nowadays in the seismic assessment of buildings, since it allows ...