Ara es mostren els items 3-11 de 11

    • 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 ...
    • 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 ...
    • 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 ...
    • Relaxation dynamics of fluid membranes 

      Arroyo Balaguer, Marino; DeSimone, Antonio (2009-03)
      Article
      Accés obert
      We study the effect of membrane viscosity in the dynamics of liquid membranes{possibly with free or internal boundaries{ driven by conservative forces (curvature elasticity and line tension) and dragged by the bulk dissipation ...
    • Reverse engineering the euglenoid movement 

      Arroyo Balaguer, Marino; Heltai, Luca; Millán, Raúl Daniel; DeSimone, Antonio (2012-10)
      Article
      Accés obert
      Euglenids exhibit an unconventional motility strategy amongst unicellular eukaryotes, consisting of large-amplitude highly concerted deformations of the entire body (euglenoid movement or metaboly). A plastic cell envelope ...
    • Shape control of active surfaces inspired by the movement of euglenids 

      Arroyo Balaguer, Marino; DeSimone, Antonio (2014-01)
      Article
      Accés obert
      We examine a novel mechanism for active surface morphing inspired by the cell body deformations of euglenids. Actuation is accomplished through in-plane simple shear along prescribed slip lines decorating the surface. Under ...
    • Smart helical structures inspired by the pellicle of euglenids 

      Noselli, Giovanni; Arroyo Balaguer, Marino; DeSimone, Antonio (2019-02)
      Article
      Accés obert
      This paper deals with a concept for a reconfigurable structure bio-inspired by the cell wall architecture of euglenids, a family of unicellular protists, and based on the relative sliding of adjacent strips. Uniform sliding ...
    • Swimming Euglena respond to confinement with a behavioural change enabling effective crawling 

      Noselli, Giovanni; Beran, Alfred; Arroyo Balaguer, Marino; DeSimone, Antonio (2019-02-18)
      Article
      Accés obert
      Some euglenids, a family of aquatic unicellular organisms, can develop highly concerted, large-amplitude peristaltic body deformations. This remarkable behaviour has been known for centuries. Yet, its function remains ...