Browsing by Subject "Elasticity"

Now showing items 21-40 of 98

    • Avoiding early failures in conjugate cam mechanism by means of different design strategies 

      Català Calderon, Pau; Santos López, M. Antonia de los; Veciana Fontanet, Joaquim Maria; Cardona Foix, Salvador (2016-01-01)
      Article
      Restricted access - publisher's policy
      To solve the indetermination of forces existing in a form-closed cam mechanism formed by conjugate cams, where the contact between the cams and the follower rollers is constantly ensured by only the geometry of the elements, ...

    • Bulging brains 

      Weickenmeie, J.; Sáez Viñas, Pablo; Butler, C. A.; Young, P.G.; Gorily, A.; Kuhl, Ellen (2016-10)
      Article
      Open Access
      Brain swelling is a serious condition associated with an accumulation of fluid inside the brain caused by trauma, stroke, infection, or tumors. It increases the pressure inside the skull and reduces blood and oxygen supply. ...

    • C0-IPM with generalised periodicity and application to flexoelectricity-based 2D metamaterials 

      Balcells Quintana, Oscar; Codony Gisbert, David; Fernández Méndez, Sonia (2022-05-18)
      Article
      Open Access
      We propose a methodology to solve high-order PDE boundary value problems with generalised periodicity, in the framework of the C0 interior penalty method. The method is developed for the analysis of flexoelectricity- based ...

    • Comparative study of experimental assessment methodologies for the dynamic characterization of elastic elements 

      Liravi, Hassan; Arcos Villamarín, Robert; Clot Razquin, Arnau; Conto Quispe, Kenny Fernando (Journal of Physics: Conference Series, 2023)
      Conference report
      Open Access
      In this paper, four distinct methods for the experimental assessment of the dynamic stiffness of elastic elements in a laboratory environment are compared. The comparison has been done experimentally in a simple ...

    • Computation of plastic deformation in spring-back problems 

      Lasanta García, Juan David (Universitat Politècnica de Catalunya, 2019-07-01)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Universidad de Málaga
      The problem to be faced on this paper is related to elasto-plastic deformation. This kind of deformation is especially relevant in the industry where metals are forged following this process. Having a precise mathematical ...

    • Computational modelling of flexoelectric materials based on C0-FEM for 4th order PDEs 

      Ventura Siches, Jordi (Universitat Politècnica de Catalunya, 2020-07)
      Master thesis
      Open Access
      El modelatge computacional de l'elasticitat de gradient de deformació i de l'acoblament electromecànic (és a dir, la exoelectricitat i la piezoelectricitat) sempre ha estat un repte atès l'alt ordre de les EDPs amb què es ...

    • Computational modelling of flexoelectricity-based 2D metamaterials 

      Balcells Quintana, Oscar (Universitat Politècnica de Catalunya, 2021-07)
      Master thesis
      Open Access
      We propose a methodology to impose generalised periodicity to the solution of the flexoelectric problem in the two-dimensional metamaterials design setting. To achieve this goal, we leverage an existing model for ...

    • Continuous dependence on initial geometry in linear elastodynamics on a half cylinder 

      Knops, R.J.; Quintanilla de Latorre, Ramón (Elsevier, 2009)
      Article
      Restricted access - publisher's policy
      Continuous dependence on the initial time geometry is established for the mean-square integral of the displacement in a linear inhomogeneous anisotropic elastic semi-infinite cylinder in motion subject to a prescribed ...

    • Control of Mechanical Active Soft Materials 

      Albarran Pino, Gerard (Universitat Politècnica de Catalunya, 2022-07-08)
      Bachelor thesis
      Open Access
      The Caenorhabditis elegans is a nematode, a worm like microorganism, that has been extensively researched within the field of Biology. The C. elegans was the first multi-cellular organism to have its entire genome sequenced, ...

    • Curved fluid membranes behave laterally as an effective viscoelastic medium 

      Rahimi Lenji, Mohammad; DeSimone, Antonio; Arroyo Balaguer, Marino (2013-08-21)
      Article
      Restricted access - publisher's policy
      The lateral mobility of membrane inclusions is essential in biological processes involving membrane-bound macromolecules, which often take place in highly curved geometries such as membrane tubes or small organelles. Probe ...

    • Damage regularisation with inertia gradients 

      Bennett, Terry; Rodríguez Ferran, Antonio; Askes, Harm (2012-01-01)
      Article
      Open Access
      A gradient enhanced model is formulated which simulates micro-structurally induced wave dispersion and is capable of achieving mesh objective results when modelling strain-softening materials. Length scale parameters are ...

    • Design and additive manufacturing of architected materials with non-linear mechanical response 

      Fabián Alfonso, Ricardo (Universitat Politècnica de Catalunya / University of California, Irvine, 2013)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   University of California, Irvine
      Most structural systems are designed to operate in their elastic regime, resulting in a linear relationship between applied loads and resulting displacements. This behavior is easy to analyze but not necessarily optimal ...

    • Development of a database for the study of the S-N cycles 

      Flores Villarpando, José Manuel (Universitat Politècnica de Catalunya, 2022-07-04)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Slovenská technická univerzita v Bratislave
      Aquest article pretén descriure una de les propietats mecàniques dels materials sòlids anomenada elasticitat. A més, estudiar aquesta propietat utilitzant diferents mètodes com el mòdul de Young, la llei de Hooke i el mòdul ...

    • Development of biomimetic NiTi alloy: influence of thermo-chemical treatment on the physical, mechanical and biological behavior 

      Rupérez de Gracia, Elisa; Manero Planella, José María; Bravo González, Luis-Alberto; Espinar, Eduardo; Gil Mur, Francisco Javier (2016-06)
      Article
      Open Access
      A bioactive layer, free of nickel, has been performed for its greater acceptability and reliability in clinical applications for NiTi shape memory alloys. In the first step, a safe barrier against Ni release has been ...

    • EFFECTS OF IMPERFECTIONS ON THE ELASTIC PROPERTIES OF CARBON NANOTUBES 

      Valero Palacín, Ignacio (Universitat Politècnica de Catalunya, 2009-09-29)
      Master thesis
      Open Access

    • Effects of waviness in composite materials 

      Rodríguez Puig, Alejandro (Universitat Politècnica de Catalunya / Universität Stuttgart, 2009)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Covenantee:   Universität Stuttgart
      This work is first approach study of the effects of fiber waviness on the elastic properties, specially the Young’s Modulus, of Laminate Composite Materials. This study has been carried out at the Institute for Aircraft ...

    • Eigenvalue and eigenmode synthesis in elastically coupled subsystems 

      Magrans Fontrodona, Francesc Xavier; Poblet-Puig, Jordi (2018-10-13)
      Article
      Open Access
      A method to synthesize the modal characteristics of a system from the modal characteristics of its subsystems is proposed. The interest is focused on those systems with elastic links between the parts which is the main ...

    • Elastic behaviour under compressive stresses states of sintered metallic parts 

      Riera Colom, María Dolores; Marbà, Isidre; Prado Pozuelo, José Manuel (European Powder Metallurgy, 2003)
      Conference report
      Open Access
      The mechanical response in service of a component is mainly determined by its elastic behaviour. Traditionally, metallic materials have been characterized by means of tensile tests, even in the case of sintered ones. In ...

    • Elastic bending modulus of monolayer graphene 

      Lu, Q; Arroyo Balaguer, Marino; Huang, R (2009-05)
      Article
      Open Access
      An analytic formula is derived for the elastic bending modulus of monolayer graphene based on an empirical potential for solid-state carbon atoms. Two physical origins are identified for the non-vanishing bending stiffness ...

    • Elastic systems 

      Cortadella, Jordi; Galcerán Oms, Marc; Kishinevsky, Michael (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Conference report
      Open Access
      Elastic systems provide tolerance to the variations in computation and communication delays. The incorporation of elasticity opens new opportunities for optimization using new correct-by-construction transformations that ...