Ara es mostren els items 1-20 de 67

    • A MGT thermoelastic problem with two relaxation parameters 

      Bazarra, Noelia; Fernández García, José Ramón; Quintanilla de Latorre, Ramón (Springer Nature, 2023-10)
      Article
      Accés obert
      n this paper, we consider, from both analytical and numerical viewpoints, a thermoelastic problem. The so-called MGT model, with two different relaxation parameters, is used for both the displacements and the thermal ...
    • A type III porous-thermo-elastic problem with quasi-static microvoids 

      Bazarra, Noelia; Castejon, Alberto; Fernández, Jose R.; Quintanilla de Latorre, Ramón (2021-12)
      Article
      Accés obert
      In this work we study, from the numerical point of view, a one-dimensional thermoelastic problem where the thermal law is of type III. Quasi-static microvoids are also assumed within the model. The variational formulation ...
    • An a priori error analysis of a type III thermoelastic problem with two porosities 

      Bazarra, Noelia; Fernández, Jose R.; Quintanilla de Latorre, Ramón; Suarez, Sofia (2023-03)
      Article
      Accés obert
      In this work, we study, from the numerical point of view, a type III thermoelastic model with double porosity. The thermomechanical problem is written as a linear system composed of hyperbolic partial differential equations ...
    • Analysis of a Moore-Gibson-Thompson thermoelastic problem 

      Bazarra, Noelia; Fernández, Jose R.; Quintanilla de Latorre, Ramón (2021-01-15)
      Article
      Accés obert
      In this work, we numerically consider a thermoelastic problem where the thermal law is modeled using the so-called Moore-Gibson-Thompson equation. This thermomechanical problem is written as a coupled system composed of a ...
    • Analysis of a thermoelastic problem with the Moore–Gibson–Thompson microtemperatures 

      Bazarra, Noelia; Fernández García, José Ramón; Liverani, Lorenzo; Quintanilla de Latorre, Ramón (Elsevier, 2024-03)
      Article
      Accés obert
      In this paper, we study, from both an analytical and a numerical point of view, a poro-thermoelastic problem with microtemperatures. The so-called Moore–Gibson–Thompson equation is used to model the contribution for the ...
    • 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 ...
    • Analysis of two thermoelastic problems with the Green–Lindsay model 

      Bazarra, Noelia; Fernández García, José Ramon; Quintanilla de Latorre, Ramón (Springer, 2023-06-01)
      Article
      Accés obert
      In this paper, we analyze, from the numerical point of view, two thermo-elastic problems involving the Green–Lindsay theory. The coupling term is different for each case, involving second order or first order spatial ...
    • Anisotropy can imply exponential decay in micropolar elasticity 

      Fernández García, José Ramon; Quintanilla de Latorre, Ramón (Elsevier, 2023-08)
      Article
      Accés obert
      In this note, two problems arisen in micropolar elasticity are considered from the analytical point of view. Following the Kelvin–Voigt theory of micropolar viscoelasticity, two dissipative mechanisms are imposed: in the ...
    • Asymptotic analysis of two thermoelastic plates with dissipative histories 

      Fernandez Sare, Hugo D.; Quintanilla de Latorre, Ramón (2024-05)
      Article
      Accés restringit per política de l'editorial
      In this paper we study the time decay of the solutions for the problems determined by two plates where the dissipation mechanisms are given by the history of the material. To be precise we consider the thermo-viscolestic ...
    • Computational modelling of flexoelectric materials based on C0-FEM for 4th order PDEs 

      Ventura Siches, Jordi (Universitat Politècnica de Catalunya, 2020-07)
      Projecte Final de Màster Oficial
      Accés obert
      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 ...
    • Coupling of continuous and HDG methods 

      Paipuri, Mahendra; Tiago, Carlos; Fernández Méndez, Sonia (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
      Text en actes de congrés
      Accés obert
      A coupling strategy between hybridizable discontinuous Galerkin (HDG) and continuous Galerkin (CG) methods is proposed in the framework of second-order elliptic operators. The coupled formulation is implemented and its ...
    • Decay for strain gradient porous elastic waves 

      Baldonedo, Jacobo; Fernández, José Ramón; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2023-02)
      Article
      Accés obert
      We study the one-dimensional problem for the linear strain gradient porous elasticity. Our aim is to analyze the behavior of the solutions with respect to the time variable when a dissipative structural mechanism is ...
    • Decay of quasi-static porous-thermo-elastic waves 

      Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2021-06)
      Article
      Accés obert
      We study the behavior in time of the solutions to several systems of equations for porous-thermo-elastic problems when one of the variables is considered to be quasi-static or, in other words, whose second time derivative ...
    • Decay of waves in strain gradient porous elasticity with Moore-Gibson-Thompson dissipation 

      Fernández García, José Ramon; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2022-09-05)
      Article
      Accés obert
      We study a one-dimensional problem arising in strain gradient porous-elasticity. Three different Moore–Gibson–Thompson dissipation mechanisms are considered: viscosity and hyperviscosity on the displacements, and weak ...
    • Dual-phase-lag one-dimensional thermo-porous-elasticity with microtemperatures 

      Liu, Zhuangyi; Quintanilla de Latorre, Ramón (2021-09)
      Article
      Accés obert
      This paper is devoted to studying the linear system of partial differential equations modelling a one-dimensional thermo-porous-elastic problem with microtemperatures in the context of the dual-phase-lag heat conduction. ...
    • Energy decay in thermoelastic bodies with radial symmetry 

      Bazarra, Noelia; Fernández Bernárdez, José Ramón; Quintanilla de Latorre, Ramón (Springer Nature, 2022-06)
      Article
      Accés obert
      In this paper, we consider the energy decay of some problems involving domains with radial symmetry. Three different settings are studied: a strong porous dissipation and heat conduction, a weak porous dissipation and heat ...
    • Exponential decay in one-dimensional porous-thermo-elasticity 

      Sánchez Casas, José Pablo; Quintanilla de Latorre, Ramón (2004)
      Article
      Accés obert
      This paper concerns the one dimensional problem of the porous-thermo-elasticity. Two kinds of dissipation process are considered: the viscosity type in the porous structure and the thermal dissipation. It is known that ...
    • Exponential decay in one-dimensional Type II/III thermoelasticity with two porosities 

      Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2020-07-30)
      Article
      Accés obert
      In this paper we consider the theory of thermoelasticity with a double porosity structure in the context of the Green-Naghdi types II and III heat conduction models. For the type II, the problem is given by four hyperbolic ...
    • Exponential decay in one-dimensional type III thermoelasticity with voids 

      Miranville, Alain; Quintanilla de Latorre, Ramón (Elsevier, 2019-08)
      Article
      Accés obert
      In this paper we consider the one-dimensional type III thermoelastic theory with voids. We prove that generically we have exponential stability of the solutions. This is a striking fact if one compares it with the behavior ...
    • Exponential stability in thermoelasticity with microtemperatures 

      Sánchez Casas, José Pablo; Quintanilla de Latorre, Ramón (2003)
      Article
      Accés obert
      This article is concerned with a linear theory for elastic materials with inner structure, whose particles in addition to the classical displacement, possess microtemperatures. In the main part of the paper we restrict ...