Ara es mostren els items 1-20 de 20

    • A flexoelectric microelectromechanical system on silicon 

      Bhaskar, Umesh Kumar; Banerjee, Nirupam; Abdollahi Hosnijeh, Amir; Wang, Zhen; Scholm, Darrell G.; Rijnders, Guus; Catalan, Gustau (2016)
      Article
      Accés obert
      Flexoelectricity allows a dielectric material to polarize in response to a mechanical bending moment and, conversely, to bend in response to an electric field. Compared with piezoelectricity, flexoelectricity is a weak ...
    • A high order finite element formulation for the simulation of 3D Magneto-Mechanical problems with application to MRI scanners 

      Seoane, Marcos; Ledger, Paul D.; Gil Ruiz, Antonio Javier; Zlotnik, Sergio; Mallett, Mike (2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Transient magnetic fields generated by the gradient coils in MRI scanners induce eddy currents in their conducting components, which lead to vibrations, imaging artefacts, noise and the dissipation of heat. Heat dissipation ...
    • A multidimensional data-driven sparse identification technique: the sparse proper generalized decomposition 

      Ibáñez Pinillo, Rubén; Abisset Chavanne, Emmanuelle; Ammar, Amine; González Ibáñez, David; Cueto Prendes, Elias; Huerta, Antonio; Duval, Jean Louis; Chinesta Soria, Francisco (2018-01-01)
      Article
      Accés obert
      Sparse model identification by means of data is especially cumbersome if the sought dynamics live in a high dimensional space. This usually involves the need for large amount of data, unfeasible in such a high dimensional ...
    • A staggered high-dimensional Proper Generalised Decomposition for coupled magneto-mechanical problems with application to MRI scanners 

      Barroso Gassiot, Guillem; Seoane Chouciño, Marcos; Gil Ruiz, Antonio Javier; Ledger, Paul D.; Mallett, Mike; Huerta, Antonio (2020-10-01)
      Article
      Accés obert
      Manufacturing new Magnetic Resonance Imaging (MRI) scanners represents a computational challenge to industry, due to the large variability in material parameters and geometrical configurations that need to be tested during ...
    • Building a certified reduced basis for coupled thermo-hydro-mechanical systems with goal-oriented error estimation 

      Larion, Ygee; Zlotnik, Sergio; Massart, Thierry J.; Díez, Pedro (Springer, 2020-09)
      Article
      Accés obert
      A goal-oriented a-posteriori error estimator is developed for transient coupled thermo-hydro-mechanical (THM) parametric problems solved with a reduced basis approximation. The estimator assesses the error in some specific ...
    • Case study: experimental characterization of noise and vibration sources in a refrigerator 

      Zárate, Roberto; Poblet-Puig, Jordi; Ortega Breña, Martín; López-Parra, Marcelo (2021-11-01)
      Article
      Accés restringit per política de l'editorial
      The sources of noise and vibration of a refrigerator are characterized by means of laboratory measurements. Three different elements are considered: compressor, evaporator fan, and condenser fan. Both the radiated acoustic ...
    • Converse flexoelectricity yields large piezoresponse force microscopy signals in non-piezoelectric materials 

      Abdollahi Hosnijeh, Amir; Domingo, Neus; Arias Vicente, Irene; Catalan, Gustau (2019-03-20)
      Article
      Accés obert
      Converse flexoelectricity is a mechanical stress induced by an electric polarization gradient. It can appear in any material, irrespective of symmetry, whenever there is an inhomogeneous electric field distribution. This ...
    • Discrete empirical interpolation for hyper-reduction of hydro-mechanical problems in groundwater flow through soil 

      Nasika, Christina; Díez, Pedro; Gerard, Pierre; Massart, Thierry J.; Zlotnik, Sergio (2023-04-10)
      Article
      Accés obert
      The recent surge in the availability of sensor data and computational resources has fostered the development of technologies for optimization, control, and monitoring of large infrastructures, integrating data and numerical ...
    • Flexoelectric MEMS: towards an electromechanical strain diode 

      Bhaskar, Umesh Kumar; Banerjee, Nirupam; Abdollahi Hosnijeh, Amir; Solanas, E.; Rijnders, Guus; Catalan, Gustau (2016)
      Article
      Accés obert
      Piezoelectricity and flexoelectricity are two independent but not incompatible forms of electromechanical response exhibited by nanoscale ferroelectrics. Here, we show that flexoelectricity can either enhance or suppress ...
    • Hierarchical micro-adaptation of biological structures by mechanical stimuli 

      Sáez Viñas, Pablo; Pena, Estefanía; Doblaré, Manuel; Martínez, Miguel Ángel (2013)
      Article
      Accés obert
      Remodeling and other evolving processes such as growth or morphogenesis are key factors in the evolution of biological tissue in response to both external and internal epigenetic stimuli. Based on the description of these ...
    • Junctional and cytoplasmic contributions in wound healing 

      Mosaffa, Payman; Tetley, Rob; Rodríguez Ferran, Antonio; Mao, Yanlan; Muñoz Romero, José (2020-08-26)
      Article
      Accés obert
      Wound healing is characterized by the re-epitheliation of a tissue through the activation of contractile forces concentrated mainly at the wound edge. While the formation of an actin purse string has been identified as one ...
    • Manifold learning algorithms applied to structural damage classification 

      León Medina, Jersson Xavier; Anaya Vejar, Maribel; Tibaduiza Burgos, Diego Alexander; Pozo Montero, Francesc (2021-06-05)
      Article
      Accés obert
      A comparative study of four manifold learning algorithms was carried out to perform the dimensionality reduction process within a proposed methodology for damage classification in structural health monitoring (SHM). Isomap, ...
    • On some aspects of the geometry of non integrable distributions and applications 

      Muñoz Lecanda, Miguel Carlos (American Institute of Mathematical Sciences, 2018-12-01)
      Article
      Accés obert
      We consider a regular distribution D in a Riemannian manifold (M, g). The LeviCivita connection on (M, g) together with the orthogonal projection allow to endow the space of sections of D with a natural covariant derivative, ...
    • On the geometry of the generalized partial realization problem 

      Baragaña, Itziar; Puerta Sales, Ferran; Puerta Coll, Xavier; Zaballa, Ion (2010-09)
      Article
      Accés restringit per política de l'editorial
      The geometry of the set of generalized partial realizations of a finite nice sequence of matrices is studied. It is proved that this set is a stratified manifold, the dimension of their strata is computed and its connection ...
    • On the use of the Bingham statistical distribution in microsphere-based constitutive models for arterial tissue 

      Alastrué, V.; Sáez Viñas, Pablo; Martínez, M.A,; Doblaré, Manuel (2010)
      Article
      Accés obert
      Constitutive models for arterial tissue have been an active research field during the last years. The main micro-constituents of blood vessels are different types of cells and the extra-cellular matrix formed by an isotropic ...
    • Onsager’s variational principle in soft matter : introduction and application to the dynamics of adsorption of proteins onto fluid membranes 

      Arroyo Balaguer, Marino; Walani, Nikhil; Torres Sánchez, Alejandro; Kaurin, Dimitri Jean Antoine (Springer, 2018)
      Capítol de llibre
      Accés obert
      This book is the first collection of lipid-membrane research conducted by leading mechanicians and experts in continuum mechanics. It brings the overall intellectual framework afforded by modern continuum mechanics to bear ...
    • Reshaping of large aeronautical structural parts: a simplified simulation approach 

      Mena Andrade, Ramiro; Aguado, José Vicente; Guinard, S.; Huerta, Antonio (American Institute of Physics (AIP), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Large aeronautical structural parts present important distortions after machining. This problem is caused by the presence of residual stresses, which are developed during previous manufacturing steps (quenching). Before ...
    • Simulation of damage on laminates 

      Curiel Sosa, José Luis; Muñoz Romero, José; Pinho, S.T.; Li, Q.; Beg, O.A. (2012)
      Comunicació de congrés
      Accés obert
      An experimental study on controlled faulty perturbed flexible structures is developed using an active mass damper actuator, where the flexible structure is subject to external perturbation and sensor faults. To attenuate ...
    • Some properties of multisymplectic manifolds 

      Román Roy, Narciso (Springer, 2019-10-01)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This lecture is devoted to review some of the main properties of multisymplectic geometry. In particular, after reminding the standard definition of multisymplectic manifold, we introduce its characteristic submanifolds, ...
    • The solution of vibroacoustic linear systems as a finite sum of transmission paths 

      Magrans Fontrodona, Francesc Xavier; Aragonès, Àngels; Rodríguez Ferran, Antonio; Guasch Fortuny, Oriol (2021-05-15)
      Article
      Accés obert
      Linear systems are frequently encountered in low, mid and high vibroacoustics modelling of mechanical built-up structures. It has recently been proved that the solution to those systems can be always factorized as an ...