Ara es mostren els items 1-20 de 125

  • Advanced composite material simulation 

    Oller Martínez, Sergio Horacio; Martínez, X; Barbat Barbat, Horia Alejandro; Rastellini, F (2008-01)
    Article
    Accés obert
    A computational methodology is presented for modeling the non-linear mechanical behavior of composite structures made of FRP (Fiber-Reinforced Polymers) laminates. The model is based on the appropriate combination of the ...
  • Advanced composite material simulation 

    Oller Martínez, Sergio Horacio; Martínez, X; Barbat Barbat, Horia Alejandro; Rastellini, F (2008)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A computational methodology is presented for modelling the material non-linear mechanical behaviour of composite structures made of FRP (Fibre-Reinforced Polymers) laminates. The model is based on the appropriate combination ...
  • A four-noded quadrilateral element for composite laminated plates/shells using the refined zigzag theory 

    Eijo, Ariel; Oñate Ibáñez de Navarra, Eugenio; Oller Martínez, Sergio Horacio (John Wiley & Sons, 2013-05-20)
    Article
    Accés restringit per política de l'editorial
    A new bilinear four-noded quadrilateral element (called quadrilateral linear refined zigzag) for the analysis of composite laminated and sandwich plates/shells based on the refined zigzag theory is presented. The element ...
  • A generalized finite-strain damage model for quasi-incompressible hyperelasticity using hybrid formulation 

    Comellas Sanfeliu, Ester; Bellomo, Facundo J.; Oller Martínez, Sergio Horacio (2016-03)
    Article
    Accés obert
    A new generalized damage model for quasi-incompressible hyperelasticity in a total Lagrangian finite-strain framework is presented. A Kachanov-like reduction factor (1 - D) is applied on the deviatoric part of the hyperelastic ...
  • A hierarchical finite element for composite laminated beams using a refined zigzag theory 

    Nallim, Liz G.; Oller Martínez, Sergio Horacio; Oñate Ibáñez de Navarra, Eugenio; Flores, Fernando Gabriel (2017-03)
    Article
    Accés restringit per política de l'editorial
    In this work a kinematics for laminated beams enriched with a refined formulation ZigZag (RZT), originally presented by Tessler et al. in 2007, introduced in a hierarchical one dimensional type “p” finite element is ...
  • A homeostatic-driven turnover remodelling constitutive model for healing in soft tissues 

    Comellas Sanfeliu, Ester; Gasser, Thomas Christian; Bellomo, Facundo J.; Oller Martínez, Sergio Horacio (2016-03)
    Article
    Accés obert
    Remodelling of soft biological tissue is characterized by interacting biochemical and biomechanical events, which change the tissue's microstructure, and, consequently, its macroscopic mechanical properties. Remodelling ...
  • 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 restringit per política de l'editorial
    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 localized mapped damage model for orthotropic materials 

    Pelà, Luca; Cervera Ruiz, Miguel; Oller Martínez, Sergio Horacio; Chiumenti, Michèle (2014-05-08)
    Article
    Accés restringit per política de l'editorial
    This paper presents an implicit orthotropic model based on the Continuum Damage Mechanics isotropic models. A mapping relationship is established between the behaviour of the anisotropic material and that of an isotropic ...
  • A micromechanical approach to modeling the effect of impact induced damage on the vibration response of CFRP laminates 

    Pérez Martínez, Marco Antonio; Gil Espert, Lluís; Oller Martínez, Sergio Horacio; Felippa, Carlos (2015)
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    This work deals with modeling the effect of low-velocity impact damage upon the vibration response of CFRP laminates through a micro-mechanical description of the induced internal damage. The serial-parallel (SP) continuum ...
  • Análisis dinámico de placas laminadas mediante macro-elementos usando teoría trigonométrica de deformación por corte 

    Rango, Rita; Nallim, Liz; Oller Martínez, Sergio Horacio (Asociación Argentina de Mecánica Computacional, 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    En este trabajo se incorpora la cinemática correspondiente a una Teoría Trigonométrica de Deformación por Corte (TSDT) a macro-elementos enriquecidos, los cuales fueron formulados originalmente por los autores para el ...
  • 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 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.
  • Analysis of pre-tensioned structures by means of a constitutive Serial-Parallel rule of mixtures 

    Barbu, Lucia Gratiela; Escudero Torres, Cuauhtemoc; Cornejo, 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 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 ...
  • Analytical and numerical analysis of human dental occlusal contact 

    Bastos de Souza, FLAVIA; Casas, Estevam; Oller Martínez, Sergio Horacio (Gordon and Breach Science Publishers, 2013)
    Article
    Accés restringit per política de l'editorial
    The knowledge of contact forces in teeth surfaces during mastication or para-functional movements can help to understand processes related to friction and wear of human dental enamel. The development of a numerical model ...
  • 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 ...
  • An enriched macro finite element for the static analysis of thick general quadrilateral laminated composite plates 

    Rango, Rita F.; Nallim, Liz G.; Oller Martínez, Sergio Horacio (2016-10)
    Article
    Accés restringit per política de l'editorial
    This article presents the formulation of an enriched macro finite element based on the trigonometric shear deformation theory for the static analysis of symmetrically laminated composite plates. Shear correction factor is ...
  • A new damage model for structures subjected to cyclic loads 

    Barbat Barbat, Horia Alejandro; Oller Martínez, Sergio Horacio; Paredes, Jairo Andrés (2010)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The structures subjected to dynamic loads often show alternative tensioncompression states stress; in such a case, even if certain damage (fracture) is reached during the tension cycle, the structure should maintain its ...