Exploració per tema "Classificació AMS::74 Mechanics of deformable solids::74H Dynamical problems"

Ara es mostren els items 1-20 de 26

    • Analog and numerical experiments of double subduction systems with opposite polarity in adjacent segments 

      Peral, Mireia; Ruh, Jonas; Zlotnik, Sergio; Funiciello, Francesca; Fernandez Ortiga, Manel; Vergés Masip, Jaume; Gerya, Taras (2020-06-01)
      Article
      Accés obert
      In this work we study the dynamics of double subduction systems with opposite polarity in adjacent segments. A combined approach of numerical and analog experiments allows us to compare results and exploit the strengths ...

    • Analysis of a viscoelastic spring-mass model 

      Pellicer Sabadí, Marta; Solà-Morales Rubió, Joan de (2003)
      Article
      Accés obert
      In this paper we consider a linear wave equation with strong damping and dynamical boundary conditions as an alternative model for the classical spring-mass-damper ODE. Our purpose is to compare analytically these two ...

    • 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 ...

    • Application of inverse SEA models to obtain the Coupling LossFactor in structural junctions from numerical simulations 

      Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (2019)
      Text en actes de congrés
      Accés obert
      An inverse SEA procedure that mimics the Experimental SEA (ESEA) is used in order to obtain the Coupling Loss Factor (CLF) of structural junctions. The main differences with respect to ESEA are that: 1) the subsystem ...

    • 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 ...

    • Dissipative structures for the system of Moore–Gibson–Thompson thermoelasticity in the whole space 

      Pellicer Sabadí, Marta; Quintanilla de Latorre, Ramón; Ueda, Yoshihiro (John Wiley & sons, 2024-03-05)
      Article
      Accés restringit per política de l'editorial
      We investigate the dissipative structure for the system of Moore–Gibson–Thompson (MGT) thermoelasticity in the whole space. To analyze the dissipative structure, it is very useful to rewrite the equations into a symmetric ...

    • 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 ...

    • Exponential stability in type III thermoelasticity with microtemperatures 

      Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2018-10)
      Article
      Accés obert
      In this paper we consider the type III thermoelastic theory with microtemperatures. We study the time decay of the solutions and we prove that under suitable conditions for the constitutive tensors, the solutions decay ...

    • Fast spatial behavior in higher order in time equations and systems 

      Fernández, Jose R.; Quintanilla de Latorre, Ramón (2022-06)
      Article
      Accés obert
      In this work, we consider the spatial decay for high-order parabolic (and combined with a hyperbolic) equation in a semi-infinite cylinder. We prove a Phragmén-Lindelöf alternative function and, by means of some appropriate ...

    • Fast stokes flow simulations for geophysical-geodynamic inverse problems and sensitivity analyses based on reduced order modeling 

      Ortega Gelabert, Olga; Zlotnik, Sergio; Afonso, Juan Carlos; Díez, Pedro (2020-03-14)
      Article
      Accés obert
      Markov chain Monte Carlo (MCMC) methods have become standard in Bayesian inference and multi-observable inversions in almost every discipline of the Earth sciences. In the case of geodynamic and/or coupled geophysical-geodynamic ...

    • Hölder stability in type III thermoelastodynamics 

      Leseduarte Milán, María Carme; Quintanilla de Latorre, Ramón (2014-10)
      Article
      Accés obert
      This note is concerned with the linear (and linearized) Type III thermoelastodynamic theory proposed by Green and Naghdi. We here assume that the mass density is positive and the thermal conductivity tensor is positive ...

    • n2 of dissipative couplings are sufficient to guarantee the exponential decay in elasticity 

      Fernández García, José Ramon; Quintanilla de Latorre, Ramón (Springer Nature, 2022-07-06)
      Article
      Accés obert
      In this paper, we prove that the solutions to the problem determined by an elastic material with n2 coupling dissipative mechanisms decay in an exponential way for every (bounded) geometry of the body, where n is the ...

    • Numerical modeling of failed rifts in the northern South China Sea margin: implications for continental rifting and breakup 

      Li, Yaqing; Abbas, Aqeel; Li, Chun-Feng; Sun, Tienan; Zlotnik, Sergio; Song, Taoran; Zhang, Lulu; Yao, Zhenwei (2020-09-01)
      Article
      Accés obert
      Failed rifts record important information of continental extension and breakup process in the northern South China Sea (SCS) margin. The Tainan Southern Depression and the Baiyun Sag to the east are characterized with ...

    • On existence and numerical approximation in phase-lag thermoelasticity with two temperatures 

      Campo, Marco; Copetti, Maria; Fernández, Jose R.; Quintanilla de Latorre, Ramón (2022-04)
      Article
      Accés obert
      In this work we study from both variational and numerical points of view a thermoelastic problem which appears in the dual-phase-lag theory with two temperatures. An existence and uniqueness result is proved in the general ...