Zobrazeno 1 - 10
of 150
pro vyhledávání: '"Claudio Giorgi"'
Autor:
Claudio Giorgi, Angelo Morro
Publikováno v:
Thermo, Vol 4, Iss 2, Pp 273-294 (2024)
The paper revisits the formulation of the second law in continuum physics and investigates new methods of exploitation. Both the entropy flux and the entropy production are taken to be expressed by constitutive equations. In three-dimensional setting
Externí odkaz:
https://doaj.org/article/8e573cb551aa4ee09d4ee5a2c25d8e22
Autor:
Claudio Giorgi, Angelo Morro
Publikováno v:
Mathematics, Vol 12, Iss 19, p 3011 (2024)
The paper is devoted to the modeling of nonlinear viscoelastic materials. The constitutive equations are considered in differential form via relations between strain, stress, and their derivatives in the Lagrangian description. The thermodynamic cons
Externí odkaz:
https://doaj.org/article/4b15f668b49a46e4a6acba8dc19a3947
Autor:
Angelo Morro, Claudio Giorgi
Publikováno v:
Thermo, Vol 3, Iss 2, Pp 260-276 (2023)
The paper investigates the techniques associated with the exploitation of the second law of thermodynamics as a restriction on the physically admissible processes. Though the exploitation consists of the use of the arbitrariness occurring in the Clau
Externí odkaz:
https://doaj.org/article/431245a406194f2fa6e453e20edade4c
Autor:
Claudio Giorgi, Elena Vuk
Publikováno v:
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, Vol 101, Iss 2, p A13 (2023)
Within the framework of continuum thermodynamics, the paper develops rate-type models of deformable piezo-ferroelectric materials with the purpose of modeling hysteresis and electro-mechanical cross couplings. To this end constitutive functions are a
Externí odkaz:
https://doaj.org/article/36cadb66a9784f02ace9b54bad6ed527
Autor:
Claudio Giorgi, Angelo Morro
Publikováno v:
Materials, Vol 16, Iss 10, p 3661 (2023)
Models of dielectric solids subject to large deformations are established by following a thermodynamic approach. The models are quite general in that they account for viscoelastic properties and allow electric and thermal conduction. A preliminary an
Externí odkaz:
https://doaj.org/article/3208d27081814eb0884e05f85e659bf6
Autor:
Claudio Giorgi, Angelo Morro
Publikováno v:
Materials, Vol 16, Iss 7, p 2882 (2023)
Models of ferromagnetic hysteresis are established by following a thermodynamic approach. The class of constitutive properties is required to obey the second law, expressed by the Clausius–Duhem inequality, and the Euclidean invariance. While the s
Externí odkaz:
https://doaj.org/article/4088cbec5dc349f696a82dc0d0cfc770
Autor:
Federico Zullo, Claudio Giorgi
Publikováno v:
Energies, Vol 16, Iss 1, p 316 (2022)
In this paper, we analyze the values of the entropic efficiency of longitudinal fins by investigating the coupling between the function describing the fin profile and the corresponding steady-state temperature distribution along the fin. By starting
Externí odkaz:
https://doaj.org/article/40104bb5fb504cc7b4ef0d1f1d278c68
Autor:
Sandra Carillo, Claudio Giorgi
Publikováno v:
Materials, Vol 15, Iss 21, p 7810 (2022)
This study addresses a magneto-viscoelasticity problem, considering the one-dimensional case. The system under investigation is given by the coupling a non-linear partial differential equation with a linear integro-differential equation. The system m
Externí odkaz:
https://doaj.org/article/208b7c09e56e4b96b05c2eb5dfd0ab2f
Autor:
Claudio Giorgi, Angelo Morro
Publikováno v:
Materials, Vol 15, Iss 19, p 6699 (2022)
The properties of viscoelastic solids subject to a magnetic field are modelled within two thermodynamically consistent approaches that are typical of models with a non-instantaneous response. One is based on memory functionals: the reversible changes
Externí odkaz:
https://doaj.org/article/662aa8c9b54e47dd956d454bb4b375f2
Autor:
Claudio Giorgi, John Murrough Golden
Publikováno v:
Materials, Vol 15, Iss 19, p 6804 (2022)
A method is presented for generating free energies relating to nonlinear constitutive equations with memory from known free energies associated with hereditary linear theories. Some applications to viscoelastic solids and hereditary electrical conduc
Externí odkaz:
https://doaj.org/article/76523cbab9024cf0876f9e902381dbb3