Ara es mostren els items 47-66 de 99

    • Local maximum-entropy approximation schemes: a seamless bridge between finite elements and meshfree methods 

      Arroyo Balaguer, Marino; Ortiz, Michael (Wiley and Sons, 2006-03)
      Article
      Accés obert
      We present a one-parameter family of approximation schemes, which we refer to as local maximum-entropy approximation schemes, that bridges continuously two important limits: Delaunay triangulation and maximum-entropy ...
    • Mapping mechanical stress in curved epithelia of designed size and shape 

      Marín Llauradó, Ariadna; Kale, Sohan; Ouzeri, Adam Amine; Golde, Tom; Sunyer Borrell, Raimon; Torres Sánchez, Alejandro; Latorre Ibars, Ernest; Gómez González, Manuel; Roca Cusachs, Pere; Arroyo Balaguer, Marino; Trepat Guixer, Xavier (2023-07-07)
      Article
      Accés obert
      The function of organs such as lungs, kidneys and mammary glands relies on the three-dimensional geometry of their epithelium. To adopt shapes such as spheres, tubes and ellipsoids, epithelia generate mechanical stresses ...
    • Mathematical and computational modeling of living materials 

      Arroyo Balaguer, Marino (2022-04-27)
      Audiovisual
      Accés obert
      Marino Arroyo Balaguer en el Cicle de Xerrades Panoràmiques sobre temes de recerca d'actualitat adreçades a estudiants i joves investigadors
    • Mechanical compartmentalization of the intestinal organoid enables crypt folding and collective cell migration 

      Pérez González, Carlos; Ceada Torres, Gerardo; Greco, Francesco; Matejcic, Marija; Gómez González, Manuel; Castro, Natalia; Menéndez, Anghara; Kale, Sohan Sudhir; Krndija, Denis; Arroyo Balaguer, Marino; Trepat Guixer, Xavier (2021-06-21)
      Article
      Accés obert
      Intestinal organoids capture essential features of the intestinal epithelium such as crypt folding, cellular compartmentalization and collective movements. Each of these processes and their coordination require patterned ...
    • Mechanics of axisymmetric sheets of interlocking and slidable rods 

      Riccobelli, Davide; Noselli, Giovanni; Arroyo Balaguer, Marino; DeSimone, Antonio (2020-08-01)
      Article
      Accés obert
      In this work, we study the mechanics of metamaterial sheets inspired by the pellicle of Euglenids. They are composed of interlocking elastic rods which can freely slide along their edges. We characterize the kinematics and ...
    • Mechanics of tubular meshes formed by elastic helical fibers 

      Quaglierini, Jacopo; Arroyo Balaguer, Marino; DeSimone, Antonio (2023-10-15)
      Article
      Accés obert
      Tubular structures made of elastic helical fibers are widely found in nature and in technology. The complex and highly nonlinear mechanical properties of such assemblies have been understood either through minimal models ...
    • Meshfree methods 

      Huerta, Antonio; Belytschko, Ted; Fernández Méndez, Sonia; Rabczuk, Timon; Zhuang, Xiaoying; Arroyo Balaguer, Marino (Wiley, 2017-12-15)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This chapter presents an overview of some computational methods for the analysis of problems in ship hydrodynamics. Attention is focused on the description of stabilized finite element formulations derived via a finite ...
    • Modeling and enhanced sampling of molecular systems with smooth and nonlinear data-driven collective variables 

      Hashemian, B.; Millán, Raúl Daniel; Arroyo Balaguer, Marino (2013)
      Article
      Accés obert
      Collective variables (CVs) are low-dimensional representations of the state of a complex system, which help us rationalize molecular conformations and sample free energy landscapes with molecular dynamics simulations. Given ...
    • Modelling fluid deformable surfaces with an emphasis on biological interfaces 

      Torres Sánchez, Alejandro; Millán, Daniel; Arroyo Balaguer, Marino (2019-08-10)
      Article
      Accés obert
      Fluid deformable surfaces are ubiquitous in cell and tissue biology, including lipid bilayers, the actomyosin cortex or epithelial cell sheets. These interfaces exhibit a complex interplay between elasticity, low Reynolds ...
    • Morphable structures from unicellular organisms with active, shape-shifting envelopes: variations on a theme by Gauss 

      Cicconofri, Giancarlo; Arroyo Balaguer, Marino; Noselli, Giovanni; DeSimone, Antonio (2020-01-01)
      Article
      Accés obert
      We discuss some recent results on biological and bio-inspired morphing, and use them to identify promising research directions for the future. In particular, we consider issues related to morphing at microscopic scales ...
    • Nonaffine mechanics of entangled networks inspired by intermediate filaments 

      Pensalfini, Marco; Golde, Tom; Trepat Guixer, Xavier; Arroyo Balaguer, Marino (American Institute of Physics (AIP), 2023-08-04)
      Article
      Accés obert
      Inspired by massive intermediate filament (IF) reorganization in superstretched epithelia, we examine computationally the principles controlling the mechanics of a set of entangled filaments whose ends slide on the cell ...
    • Nonlinear manifold learning for meshfree finite deformation thin shell analysis 

      Millán, Raúl Daniel; Arroyo Balaguer, Marino; Rosolen, Adrián (John Wiley & Sons, 2013-02)
      Article
      Accés obert
      Calculations on general point-set surfaces are attractive because of their flexibility and simplicity in the preprocessing but present important challenges. The absence of a mesh makes it nontrivial to decide if two ...
    • Nonlinear manifold learning for model reduction in finite elastodynamics 

      Millán, Daniel; Arroyo Balaguer, Marino (2013)
      Article
      Accés obert
      Model reduction in computational mechanics is generally addressed with linear dimensionality reduction methods such as Principal Components Analysis (PCA). Hypothesizing that in many applications of interest the essential ...
    • Nonlinear mechanical response and rippling of thick multi-walled carbon nanotubes 

      Arroyo Balaguer, Marino; Belytschko, T. (2003-11)
      Article
      Accés obert
      The measured drop of the effective bending stiffness of multiwalled carbon nanotubes (MWCNTs) with increasing diameter is investigated by a generalized local quasicontinuum method. The previous hypothesis that this reduction ...
    • Nonsingular isogeometric boundary element method for stokes flows in 3D 

      Heltai, Luca; Arroyo Balaguer, Marino; DeSimone, Antonio (2014-01)
      Article
      Accés obert
      Isogeometric analysis (IGA) is emerging as a technology bridging computer aided geometric design (CAGD), most commonly based on Non-Uniform Rational B-Splines (NURBS) surfaces, and engineering analysis. In finite element ...
    • Numerical integration by using local-node gauss-hermite cubature 

      Millán, Raúl Daniel; Rosolen, Adrián Martín; Arroyo Balaguer, Marino (2009-06-08T10:53:59Z)
      Text en actes de congrés
      Accés obert
      A local–node numerical integration scheme for meshless methods is presented in this work. The distinguishing characteristic of the introduced scheme is that not support mesh or grid to perform numerical integration is ...
    • On the geometric character of stress in continuum mechanics 

      Kanso, E; Arroyo Balaguer, Marino; Tong, Y Y; Yavari, A; Marsden, J G; Desbrun, M (2007-09)
      Article
      Accés obert
      This paper shows that the stress field in the classical theory of continuum mechanics may be taken to be a covector-valued differential two-form. The balance laws and other fundamental laws of continuum mechanics may be ...
    • On the optimum support size in meshfree methods: a variational adaptivity approach with maximum-entropy approximants 

      Rosolen, Adrián; Millán, Daniel; Arroyo Balaguer, Marino (Wiley and Sons, 2010-05-14)
      Article
      Accés obert
      We present a method for the automatic adaption of the support size of meshfree basis functions in the context of the numerical approximation of boundary value problems stemming from a minimum principle. The method is based ...
    • 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 ...
    • Optimization of a novel micro-opto-X-ray imaging lens 

      Ostadi, Hossein; Arroyo Balaguer, Marino; Prewett, P.D.; Jiang, K.C.; Huq, S.E. (2008-06)
      Article
      Accés obert
      A mechanically deformable reflection transmission MOEMS system is capable of focusing X-rays to sub micron spots. This paper considers the geometry of the proposed deformed slotted microcantilever lens element under thermally ...