Ara es mostren els items 33-52 de 99

    • Finite crystal elasticity of carbon nanotubes based on the exponential Cauchy-Born rule 

      Arroyo Balaguer, Marino; Belytschko, T. (2004-03)
      Article
      Accés obert
      A finite deformation continuum theory is derived from interatomic potentials for the analysis of the mechanics of carbon nanotubes. This nonlinear elastic theory is based on an extension of the Cauchy-Born rule called the ...
    • Finite element methods for the non-linear mechanics of crystalline sheets and nanotubes 

      Arroyo Balaguer, Marino; Belytschko, T. (Wiley and Sons, 2004-01)
      Article
      Accés obert
      The formulation and finite element implementation of a finite deformation continuum theory for the mechanics of crystalline sheets is described. This theory generalizes standard crystal elasticity to curved monolayer ...
    • Force transduction and lipid binding in MscL: a continuum-molecular approach 

      Vanegas, Juan Manuel; Arroyo Balaguer, Marino (2014-12-01)
      Article
      Accés obert
      The bacterial mechanosensitive channel MscL, a small protein mainly activated by membrane tension, is a central model system to study the transduction of mechanical stimuli into chemical signals. Mutagenic studies suggest ...
    • Fourth order phase-field model for local max-ent approximants applied to crack propagation 

      Amiri, Fatemeh; Millán, Daniel; Arroyo Balaguer, Marino; Silani, Mohammad; Rabczuk, Timon (2016-12)
      Article
      Accés obert
      We apply a fourth order phase-field model for fracture based on local maximum entropy (LME) approximants. The higher order continuity of the meshfree LME approximants allows to directly solve the fourth order phase-field ...
    • Fracture toughening and toughness asymmetry induced by flexoelectricity 

      Abdollahi Hosnijeh, Amir; Peco, Christian; Millán, Daniel; Arroyo Balaguer, Marino; Catalan, Gustau; Arias Vicente, Irene (2015-09-08)
      Article
      Accés restringit per política de l'editorial
      Cracks generate the largest strain gradients that any material can withstand. Flexoelectricity (coupling between strain gradient and polarization) must therefore play an important role in fracture physics. Here we use a ...
    • Geometric derivation of the microscopic stress: a covariant central force decomposition 

      Torres Sánchez, Alejandro; Vanegas, Juan Manuel; Arroyo Balaguer, Marino (2016-08)
      Article
      Accés obert
      We revisit the derivation of the microscopic stress, linking the statistical mechanics of particle systems and continuum mechanics. The starting point in our geometric derivation is the Doyle-Ericksen formula, which states ...
    • High-order maximum-entropy collocation methods 

      Greco, Francesco; Arroyo Balaguer, Marino (2020-08-01)
      Article
      Accés obert
      This paper considers the approximation of partial differential equations with a point collocation framework based on high-order local maximum-entropy schemes (HOLMES). In this approach, smooth basis functions are computed ...
    • hiperlife 

      Santos Oliván, Daniel; Torres Sánchez, Alejandro; Vilanova Caicoya, Guillermo; Bayat, Mohammad Reza; Font i Reverter, Jordi; Mirza, Waleed Ahmad; Arroyo Balaguer, Marino (Universitat Politècnica de Catalunya, 2021-06-17)
      Programari / Conjunt de dades
      Accés obert
    • 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 obert
      Brittle 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 ...
    • Hydraulic fracture during epithelial stretching 

      Casares, Laura; Vincent, Romaric; Zalvidea, Dobryna; Campillo, Noelia; Navajas, Daniel; Arroyo Balaguer, Marino; Trepat Guixer, Xavier (2015-03-01)
      Article
      Accés obert
      The origin of fracture in epithelial cell sheets subject to stretch is commonly attributed to excess tension in the cells' cytoskeleton, in the plasma membrane, or in cell-cell contacts. Here, we demonstrate that for a ...
    • Hydraulic fracturing in cells and tissues: fracking meets cell biology 

      Arroyo Balaguer, Marino; Trepat, Xavier (2017-02-01)
      Article
      Accés obert
      The animal body is largely made of water. A small fraction of body water is freely flowing in blood and lymph, but most of it is trapped in hydrogels such as the extracellular matrix (ECM), the cytoskeleton, and chromatin. ...
    • Hydraulic fracturing in cells and tissues: fracking meets cell biology 

      Arroyo Balaguer, Marino; Trepat Guixer, Xavier (2017)
      Article
      Accés obert
      The animal body is fundamentally made of water. A small fraction of this water is freely flowing in blood and lymph, but most of it is trapped in hydrogels such as the extracellular matrix (ECM), the cytoskeleton, and ...
    • Importance of force decomposition for local stress calculations in biomembrane molecular simulations 

      Vanegas, Juan Manuel; Torres Sánchez, Alejandro; Arroyo Balaguer, Marino (2014-02-01)
      Article
      Accés obert
      Local stress fields are routinely computed from molecular dynamics trajectories to understand the structure and mechanical properties of lipid bilayers. These calculations can be systematically understood with the ...
    • Interplay of packing and flip-flop in local bilayer deformation. How phosphatidylglycerol could rescue mitochondrial function in a cardiolipin-deficient yeast mutant 

      Khalifat, Nada; Rahimi Lenji, Mohammad; Bitbol, Anne-Florence; Seigneuret, Michel; Fournier, Jean Baptiste; Puff, Nicolas; Arroyo Balaguer, Marino; Angelova, Miglena I. (2014-08-19)
      Article
      Accés obert
      n a previous work, we have shown that a spatially localized transmembrane pH gradient, produced by acid micro-injection near the external side of cardiolipin-containing giant unilamellar vesicles, leads to the formation ...
    • 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 ...