Exploració per tema "Àrees temàtiques de la UPC::Física::Física de l’estat sòlid"

Ara es mostren els items 1-17 de 17

    • A mixed three-field FE formulation for stress accurate analysis including the incompressible limit 

      Chiumenti, Michele; Cervera Ruiz, Miguel; Codina, Ramon (2015-01)
      Article
      Accés obert
      In previous works, the authors have presented the stabilized mixed displacement/pressure formulation to deal with the incompressibility constraint. More recently, the authors have derived stable mixed stress/displacement ...

    • Analysis of the equations governing the motion of a degrading elastic solid due to diffusion of a fluid 

      Quintanilla de Latorre, Ramón; Rajagopal, Kumbakonam (2014-10)
      Article
      Accés obert
      Degradation of solids bearing load due to the infusion of moisture when exposed to the environment can leads to a decrease in their load carrying capacity and can also lead to the failure of the body from performing its ...

    • Anàlisi i implementació numèrica d’un model per a materials policristal·lins 

      Fabrés Pinar, Antoni (Universitat Politècnica de Catalunya, 2005)
      Projecte/Treball Final de Carrera
      Accés obert

    • Arbitrary Lagrangian-Eulerian simulation of powder compaction processes 

      Pérez Foguet, Agustí; Rodríguez Ferran, Antonio; Huerta, Antonio (2001-12)
      Article
      Accés obert
      In this paper, a new strategy for the simulation of quasi-static cold compaction processes of powders is presented. A material model formulated within the framework of isotropic finite strain multiplicative hyperelastoplasticity ...

    • Characterizing ordering in liquids: An information theoretic approach 

      Pardo Soto, Luis Carlos; Henao Aristizábal, Andrés; Vispa, Alessandro (2015-01-01)
      Article
      Accés obert
      The determination of special molecular arrangements in disordered phases such as liquids is inherently difficult due to its lack of periodicity, in contrast to the crystalline solids. We have already settled a general ...

    • Conductores y dieléctricos 

      Lupón Bas, Núria (2008-11-19)
      Audiovisual
      Accés obert

    • Dielectric, calorimetric and mesophase properties of 1 ''-(2 ',4-difluorobiphenyl-4 '-yloxy)-9 ''-(4-cyano-biphenyl-4 '-yloxy) nonane: an odd liquid crystal dimer with a monotropic mesophase having the characteristics of a twist-bend nematic phase 

      Sebastian Ugarteche, Nerea; López Pérez, David Orencio; Robles Hernández, Beatriz; de la Fuente, M.R.; Salud Puig, Josep; Pérez Jubindo, M.A.; Dunmur, D.A.; Luckhurst, G.R.; Jackson, D. J. B. (2014-10-21)
      Article
      Accés restringit per política de l'editorial
      This paper reports a novel liquid crystal phase having the characteristics of a twist-bend nematic phase formed by a non-symmetric ether-linked liquid crystal dimer. The dimer 1 ''-(2',4-difluorobiphenyl-4'-yloxy)-9 ...

    • Effects of strain aging in NiTi SMA wires for dampers 

      Auguet Sangrá, Carlota E.; Isalgué Buxeda, Antonio; Torra, Vicenç; Carreras, Guillem; Lovey, Francisco Carlos (Universidad del Pais Vasco, 2014)
      Text en actes de congrés
      Accés obert
      SMA NiTi wires experience evolution under constrained aging. A strain and temperature aging sequence is designed and experimented, to ascertain the functionality of the dampers exposed to weathering

    • Ginzburg-Landau modelling of precursor nanoscale textures in ferroelastic materials 

      Planes, Antoni; Lloveras Muntané, Pol Marcel; Castán, Teresa; Saxena, Avadh; Porta, Marcel (2012-11)
      Article
      Accés restringit per política de l'editorial
      A Ginzburg–Landau free-energy model is proposed to study spatially inhomogeneous states that often occur as precursors of ferroelastic/martensitic transitions. Disorder is included in the harmonic coefficient of the ...

    • Microscopic dynamics of glycerol: a QENS study 

      Rovira Esteva, Muriel; Vispa, Alessandro; Ruíz Martín, María Dolores; Busch, Sebastian; Unruh, T.; Pardo Soto, Luis Carlos; Tamarit Mur, José Luis (Institute of Physics (IOP), 2014-01-09)
      Article
      Accés obert
      We report on a quasielastic incoherent neutron scattering (QENS) experiment onliquid glycerol. QENS data were collected at thetemperature T=380 K and witharesolution(FWHM)R=55µeV.The analysis of the quasielastic signal ...

    • Mixed stabilized finite element methods in nonlinear solid mechanics. Part III: compressible and incompressible plasticity 

      Cervera Ruiz, Miguel; Chiumenti, Michele; Benedetti, Lorenzo; Codina, Ramon (2015-03)
      Article
      Accés obert
      This paper presents the application of a stabilized mixed strain/displacement finite element formulation for the solution of nonlinear solid mechanics problems involving compressible and incompressible plasticity. The ...

    • On a theory of thermoelastic materials with double porosity structure 

      Iesan, Dorin; Quintanilla de Latorre, Ramón (2014-10-01)
      Article
      Accés obert
      In this article, we use the Nunziato–Cowin theory of materials with voids to derive a theory of thermoelastic solids, which have a double porosity structure. The new theory is not based on Darcy's law. In the case of ...

    • Resonant Bloch-wave beatings 

      Kartashov, Yaroslav; Vysloukh, Victor A.; Torner Sabata, Lluís (2014-07-01)
      Article
      Accés restringit per política de l'editorial
      We introduce Bloch-wave beatings in arrays of multimode periodically bent waveguides with a transverse refractive index gradient. The new phenomenon manifests itself in the periodic drastic increase of the amplitude of the ...

    • Self-assembly of collagen building blocks guided by electric fields 

      de la Rica, Roberto; Mendoza Gómez, Ernesto; Chow, Lesley W.; Cloyd, Kristy L.; Bertazzo, Sergio; Watkins, Hannah C.; Steele, Joseph A. M.; Stevens, Molly M. (2014-10-01)
      Article
      Accés restringit per política de l'editorial
      Show me the way: protein building blocks are programmed to assemble hierarchically and yield a defined fiber morphology of micrometric length and precise nanometric diameter. The key step of this method is to align the ...

    • The relationship between orientational disorder and pressure: The case study of succinonitrile 

      Tamarit Mur, José Luis; Rietveld, Ivo B.; Barrio Casado, María del; Céolin, René (2014-12-25)
      Article
      Accés restringit per política de l'editorial
      Plastic phases can be considered as an intermediary state between the crystalline state and the liquid state, in which the molecules maintain their positions, but they exhibit orientational disorder. Whereas plastic phases ...

    • Vertically aligned ZnO nanorod array/CuO heterojunction for UV detector application 

      Vikas, L. S.; Sanal, K. C.; Jayaraj, M. K.; Antony, Aldrin; Puigdollers i González, Joaquim (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      Vertically aligned ZnO nanorod array (ZNA) was deposited by electrodeposition technique over glass substrate coated with Al doped ZnO (AZO). The photo-luminescence spectrum of the ZNA showed a near band edge emission and ...

    • Vibraciones. Resonancia 

      Hervada Sala, Carme (2015-10-02)
      Audiovisual
      Accés obert
      Este vídeo forma parte del MOOC "El lenguaje de la Ingeniería", módulo de Física. (https://mooc.upc.edu/)