Exploració per autor "DeSimone, Antonio"
Ara es mostren els items 2-11 de 11
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Hydraulic fracture and toughening of a brittle layer bonded to a hydrogel
Lucantonio, Alessandro; Noselli, Giovanni; Trepat Guixer, Xavier; Arroyo Balaguer, Marino; DeSimone, Antonio (2015-10-28)
Article
Accés obertBrittle materials propagate opening cracks under tension. When stress increases beyond a critical magnitude, then quasistatic crack propagation becomes unstable. In the presence of several precracks, a brittle material ... -
Mechanics of axisymmetric sheets of interlocking and slidable rods
Riccobelli, Davide; Noselli, Giovanni; Arroyo Balaguer, Marino; DeSimone, Antonio (2020-08-01)
Article
Accés obertIn 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 obertTubular 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 obertWe 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 obertIsogeometric 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 obertWe 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 obertEuglenids 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 obertWe 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 obertThis 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 obertSome 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 ...