Ara es mostren els items 45-62 de 62

    • 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 obert
      Composite 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 obert
      En 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 obert
      In 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 obert
      This 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 obert
      This 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; 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 obert
      Since 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 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 obert
      Since 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 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'editorial
      Strengthening 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 ...
    • On the development of IoT platforms for the detection of damage in steel railway bridges 

      Chacón Flores, Rolando Antonio; Rodríguez González, Alejandro; Sierra, Pablo Leonel; Martínez García, Javier; Oller Martínez, Sergio Horacio (CRC Press, 2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents the ongoing research related to the development of IoT platforms for the detection of damage in steel railway bridges. The development encompasses several fields from sensors, to damage detection, to ...
    • Outlook on ecologically improved composites for aviation interior and secondary structures 

      Bachmann, Jens; Yi, Xiaosu; Gong, Hugh; Martínez García, Javier; Bugeda Castelltort, Gabriel; Oller Martínez, Sergio Horacio; Tserpes, Konstantinos; Ramon, Eric; Paris, Christophe; Moreira, Pedro; Fang, Zhengping; Li, Yan; Liu, Yanfeng; Liu, Xiaoqing; Xian, Guijun; Tong, Jianfeng; Wei, Jiahu; Zhang, Xufeng; Zhu, Jin; Ma, Songqi; Yu, Tao (Springer, 2018-04-24)
      Article
      Accés obert
      Today, mainly man-made materials such as carbon and glass fibres are used to produce composite parts in aviation. Renewable materials such as natural fibres or bio-sourced resin systems have not found their way into aviation, ...
    • Procedures based on composite FEM technology for the resolution of concrete-framed structures with masonry in-fills: comparison with Mexican building code 

      Escudero Torres, Cuauhtemoc; Oller Martínez, Sergio Horacio; Martínez García, Javier; Barbat Barbat, Horia Alejandro (American Society of Civil Engineers (ASCE), 2017-09)
      Article
      Accés obert
      The construction of confined masonry buildings has become a good choice to meet the housing needs of low-income families inbig cities. Despite this, current building codes for such construction allow the use of highly ...
    • Reliability design methodology for confined high pressure inflatable structures 

      Barbero, Ever; Sosa, Eduardo; Martínez García, Javier; Gutierrez, J.M. (2013-02-19)
      Article
      Accés restringit per política de l'editorial
      A design methodology for high pressure, inflatable structures is proposed. The inflatable structure may be partially confined inside large diameter conduits and tunnels. The design addresses the main structural requirements ...
    • Stepwise advancing strategy for the simulation of fatigue problems 

      Barbu, Lucia Gratiela; Oller Martínez, Sergio Horacio; Martínez García, Javier; Barbat Barbat, Horia Alejandro (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
      Text en actes de congrés
      Accés obert
      A time advance strategy for cyclic loading will be presented, applied to the fatigue formulation first proposed by [1].The coupling of both formulations provides a comprehensive approachto simulate high cycle fatigue ...
    • Strategy for an efficient material non-linear multiscale analysis 

      Martínez García, Javier; Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio (2015)
      Text en actes de congrés
      Accés obert
      As the internal microstructure of composite materials becomes more complex, multi-scale methods are gaining strength. These allow obtaining the material performance from the analysis of a representative volume element. The ...
    • Structural analyses of GLARE-GFRP transition for integrated VHF antenna on a fuselage panel 

      Turon Pujol, Francesc; Otero Gruer, Fermín Enrique; Martínez García, Javier (2020)
      Text en actes de congrés
      Accés obert
      The objective of this paper is to describe the numerical simulation of the transition zones in the multifunctional fuselage panel design to integrate a VHF (Very High Frequency) antenna. The panel is made of GLARE (Glass ...
    • Structural analyses of orthogrid fuselage panel for integrated Ku-band SatCom antenna 

      Turon Pujol, Francesc; Otero Gruer, Fermín Enrique; Martínez García, Javier (International Centre for Numerical Methods in Engineering (CIMNE), 2019)
      Comunicació de congrés
      Accés obert
      The aim of this work is to describe the structural analysis of a multifunctional aircraft fuselage panel. The structure of the panel has an embedded antenna tiles. The panel consists of UniDirectional (UD) carbon fibre ...
    • Thermo-mechanical homogenization of composite materials 

      Zaghi, Stefano; Martínez García, Javier; Rossi, Riccardo; Oller Martínez, Sergio Horacio (Asociación Española de Materiales Compuestos, 2015)
      Text en actes de congrés
      Accés obert
    • Validation on large scale tests of a new hardening–softening law for the Barcelona plastic damage model 

      Barbu, Lucia Gratiela; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (2015-12-01)
      Article
      Accés obert