Ponències/Comunicacions de congressos: Enviaments recents

Ara es mostren els items 13-24 de 192

    • Non-linear mechanical damage modelling for long fibre-reinforced laminates 

      Rastellini, Fernando G.; Salomón, Ramón Omar; Oller Martínez, Sergio Horacio; Oñate Ibáñez de Navarra, Eugenio (2006)
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      A computational methodology is presented for modelling the material non-linear mechanical behaviour of composite structures made of FRP (Fibre-Reinforced Plastic) laminates. The model is based on the appropriate combination ...

    • Red Aulas CIMNE: espacios de colaboración en temas docentes y de I+D en distintas universidades, empresas y centros de investigación de diversos países 

      Oñate Ibáñez de Navarra, Eugenio; Guzmán, Francisco; Bugeda Castelltort, Gabriel; Corestein Poupeau, Georgina; Zárate Araiza, José Francisco (Escola Universitària d'Enginyeria Tècnica Industrial de Barcelona (EUETIB), 2004)
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      La mayoría de los avances de I+D que hoy en día se producen quedan limitados en función de necesidades locales. La causa principal es la falta de medios para proyectar la I+D hacia entornos donde pueda ser exitosamente ...

    • Análisis elastodinámico de sólidos mediante el método sin malla de puntos finitos 

      Perazzo Maggi, Franco Orlando; Miquel Canet, Juan; Oñate Ibáñez de Navarra, Eugenio (2002)
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      El trabajo presenta los principales aspectos de la implementación del método numérico sin malla de Puntos Finitos (MPF) para la solución de problemas en la dinámica lineal de sólidos. Para resolver numéricamente el sistema ...

    • Global search methods for nonlinear optimisation: a new probabilistic-stochastic approach 

      Bugeda Castelltort, Gabriel; Balsa-Canto, E; Thamotheram, C; Oñate Ibáñez de Navarra, Eugenio; Zárate Araiza, José Francisco (International Centre for Numerical Methods in Engineering (CIMNE), 2003)
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      In this work the problem of overcoming local minima in the solution of nonlinear optimisation problems is addressed. As a first step, the existing nonlinear local and global optimisation methods are reviewed so as to ...

    • A set of algorithms to correct a geometry in order to be meshed 

      Ribo Rodriguez, Ramon; Bugeda Castelltort, Gabriel; Oñate Ibáñez de Navarra, Eugenio (2000)
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      One of the major difficulties in meshing 3D complex geometries is to deal with non proper geometrical definitions coming from CAD systems. Typically, CAD systems don’t take care of the proper definition of the geometries ...

    • A numerical approach to simulate the behavior of fiber reinforced composite materials 

      Car, Eduardo J.; Oller Martínez, Sergio Horacio; Oñate Ibáñez de Navarra, Eugenio (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2000)
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    • Parameter identification of large-scale magnetorheological dampers in a benchmark building 

      Bahar, Arash; Pozo Montero, Francesc; Acho Zuppa, Leonardo; Rodellar Benedé, José; Barbat Barbat, Horia Alejandro (2009)
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      Magnetorheological (MR) dampers are devices that can be use d for vibration re- duction in structures. However, to use these devices in an ef fective way, a precise modeling is required. In this sense, in this paper we ...

    • A simulation tool for parachute/payload systems 

      Flores Le Roux, Roberto Maurice; Ortega, Enrique; Vallés Fluvià, J.; Oñate Ibáñez de Navarra, Eugenio (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
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      The design and evaluation of parachute-payload systems is a technology field in which numerical analysis tools can make very important contributions. This work describes a new development from CIMNE in this area, a coupled ...

    • The Particle Finite Element Method (PFEM): an effective numerical technique for solving coastal engineering problems 

      Oñate Ibáñez de Navarra, Eugenio; Celigueta Jordana, Miguel Ángel; Idelsohn Barg, Sergio Rodolfo (2013)
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      We present some developments in the Particle Finite Element Method (PFEM) for the solution of complex coupled problems in coastal engineering involving fluid-soil-structure interaction (FSSI) such as the stability of ...

    • Advances in the Discrete Element Method for drilling mechanics problems 

      Oñate Ibáñez de Navarra, Eugenio; Arrufat Garcia, Ferran; Zárate Araiza, José Francisco; Ubach de Fuentes, Pere-Andreu; Gandikota, Varadaraju; Ring, Lev (2013)
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      We present recent developments in the Discrete Element method (DEM) for analysis of drilling mechanics problems typical in the oil and gas industry. A new local DEM constitutive model able to predict the non-linear behavior ...

    • Multi-objective design optimisation of a 3D-rail stamping process using a robust multi-objective optimisation platform (RMOP) 

      Lee, DongSeop; Coma Company, Martí; Espinoza Román, Héctor Gabriel; Fruitós Bickham, Óscar Alejandro; Pons Prats, Jordi (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
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      The paper investigates the multi-objective design optimisation of a stamping process to control the final shape and the final quality using advanced high strength steels. The design problem of the stamping process is ...

    • Finite element computation of diphthong sounds using tuned two-dimensional vocal tracts 

      Arnela, Marc; Guasch Fortuny, Oriol; Codina, Ramon; Espinoza Román, Héctor Gabriel (European Acoustics Association (EEA), 2014)
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      Finite element methods (FEM) are increasingly being used to simulate the acoustics of the vocal tract. For vowel production, the irreducible wave equation for the acoustic pressure is typically solved. However, diphthong ...