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A nonequilibrium irreversible thermodynamics model for material damping

open access: yesInternational Journal of Solids and Structures, 2007
AbstractMaterial damping in a continuum, which inherently involves multiple coupled irreversible thermodynamic processes, is associated with irreversible interchanges of various forms of energy. In this paper, a hybrid framework of internal state variables and extended state variables is proposed to formulate a material damping model for complex ...
Lu, Xia, Hanagud, Sathya V.
exaly   +2 more sources

Thermodynamic Stability Theories of Irreversible Processes and the Fourth Law of Thermodynamics [PDF]

open access: yesEntropy
Three approaches for determining the thermodynamic stability of irreversible processes are described in generalized formulations. The simplest is the Gibbs–Duhem theory, specialized to irreversible trajectories, which uses the concept of virtual ...
Vijay M. Tangde   +2 more
doaj   +2 more sources

Irreversible-thermodynamic approach to nonequilibrium heat fluctuations [PDF]

open access: yesPhysical Review A, 1982
Starting from a generalized nonequilibrium entropy, and from an extension of the Einstein formula for the probability of the fluctuations, we obtain the second moments of nonequilibrium fluctuations of the specific energy and the heat flux in rigid heat conductors.
Jou i Mirabent, David||   +2 more
openaire   +4 more sources

Nonequilibrium Black Hole Thermodynamics in Anti-de Sitter Spacetime

open access: yesAdvances in High Energy Physics, 2021
This work discusses the black hole thermodynamics in a weak dynamical Anti-de Sitter spacetime, which should be described by the nonequilibrium thermodynamics, because the metric depends on the time coordinate. Taking the Vaidya-Anti-de Sitter black hole
Kai Lin
doaj   +1 more source

Nonequilibrium thermodynamics of the asymmetric Sherrington-Kirkpatrick model

open access: yesNature Communications, 2023
Most natural systems operate far from equilibrium, displaying time-asymmetric, irreversible dynamics characterized by a positive entropy production while exchanging energy and matter with the environment.
Miguel Aguilera   +2 more
doaj   +1 more source

Non-quasistatic response coefficients and dissipated availability for macroscopic thermodynamic systems

open access: yesJournal of Physics Communications, 2023
The characterization of finite-time thermodynamic processes is of crucial importance for extending equilibrium thermodynamics to nonequilibrium thermodynamics.
Yuki Izumida
doaj   +1 more source

Thermodynamically consistent gradient elasticity with an internal variable [PDF]

open access: yesTheoretical and Applied Mechanics, 2020
The role of thermodynamics in continuum mechanics and the derivation of proper constitutive relations is a topic discussed in Rational Mechanics. The classical literature did not use the accumulated knowledge of thermostatics and was very critical of the
Ván Peter
doaj   +1 more source

Classical and quantum stochastic thermodynamics [PDF]

open access: yesRevista Brasileira de Ensino de Física, 2020
The stochastic thermodynamics provides a framework for the description of systems that are out of thermodynamic equilibrium. It is based on the assumption that the elementary constituents are acted by random forces that generate a stochastic dynamics ...
Mário J. de Oliveira
doaj   +1 more source

Thermodynamic Consistency and Thermomechanical Dynamics (TMD) for Nonequilibrium Irreversible Mechanism of Heat Engines

open access: yesJournal of Applied Mathematics and Physics, 2021
The irreversible mechanism of heat engines is studied in terms of thermodynamic consistency and thermomechanical dynamics (TMD) which is proposed for a method to study nonequilibrium irreversible thermodynamic systems. As an example, a water drinking bird (DB) known as one of the heat engines is specifically examined.
Hiroshi Uechi   +2 more
openaire   +2 more sources

Ensemble formalism for nonequilibrium systems and an associated irreversible statical thermodynamics [PDF]

open access: yesBrazilian Journal of Physics, 2005
It is reviewed what can be considered as the present research trends in what regards to the construction of an ensemble formalism - Gibbs' style - for the case of far-from-equilibrium systems. The main questions involved are presented accompanied with brief discussions.
Vasconcellos, Áurea R.   +2 more
openaire   +3 more sources

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