HAL : hal-00115775, version 1

arXiv : physics/0611239

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(1995)

ON VARIATIONAL MICRO-MACRO MODELS AND THEIR APPLICATION TO POLYCRYSTALS

Mayeul Arminjon 1, Didier Imbault 1

(1995)

Some variational micro-macro models are briefly reviewed: it is shown how, starting from the Taylor model and passing through the relaxed Taylor model, a consistent intermediate between Taylor's upper bound and the lower bound (Sachs or rather "static") model was obtained. This intermediate or "inhomogeneous" variational model (indeed, it generally predicts both strain and stress to be inhomogeneous) could offer a general alternative to self-consistent models. However, the implemented version was a rather empirical model (ARMINJON [1984]) with a less well-defined status. We present current progress in the implementation of the correct version.

1 :	Laboratoire sols, solides, structures - risques (3S-R)
	CNRS : UMR5521 – Institut National Polytechnique de Grenoble - INPG – Université Joseph Fourier - Grenoble I

Domaine

:

Physique/Relativité Générale et Cosmologie Quantique Sciences de l'ingénieur/Mécanique/Mécanique des solides Physique/Mécanique/Mécanique des solides

Mots Clés : micro-to-macro – inhomogeneous media – polycrystal – inhomogeneous strain – texture

hal-00115775, version 1

http://hal.archives-ouvertes.fr/hal-00115775

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Contributeur : Mayeul Arminjon <>

Soumis le : Jeudi 23 Novembre 2006, 11:25:47

Dernière modification le : Jeudi 23 Novembre 2006, 13:51:51