Comptes Rendus
no. 4
Hypertemperature in thermoelastic solids
[Hypertempérature en thermomécanique des solides élastiques]

Présenté par : Jean-Baptiste Leblond

Samuel Forest1  ; Michel Amestoy1
1 Mines Paris, ParisTech, Centre des Matériaux / CNRS UMR 7633, BP 87, 91003 Evry cedex, France
Comptes Rendus. Mécanique, Volume 336 (2008) no. 4, pp. 347-353.

Une extension de la thermomécanique classique des milieux continus est proposée afin d'incorporer des effets de gradient d'entropie dans la fonction densité d'énergie interne. On en déduit une équation de la chaleur généralisée pour les conducteurs rigides. La théorie proposée s'avère distincte d'une formulation basée sur l'introduction du gradient de température dans la densité d'énergie libre du milieu.

The classical thermomechanics of solids is extended to incorporate a non-trivial dependence of the internal energy density function on the gradient of entropy. A generalized heat equation is derived for rigid heat conductors. The theory is shown to differ from existing models including gradient of temperature effects in the free energy.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crme.2008.01.007
Keywords: Continuum mechanics, Continuum thermomechanics, Entropy gradient, Temperature gradient, Generalized heat equation
Mot clés : Milieux continus, Thermomécanique des milieux continus, Gradient d'entropie, Gradient de température, Équation de la chaleur généralisée
Samuel Forest 1 ; Michel Amestoy 1

1 Mines Paris, ParisTech, Centre des Matériaux / CNRS UMR 7633, BP 87, 91003 Evry cedex, France 
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Samuel Forest; Michel Amestoy. Hypertemperature in thermoelastic solids. Comptes Rendus. Mécanique, Volume 336 (2008) no. 4, pp. 347-353. doi : 10.1016/j.crme.2008.01.007. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2008.01.007/

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