par Gloria, Antoine 
;Ruf, Matthias
Référence Archive for rational mechanics and analysis, 231, 2, page (845-886)
Publication Publié, 2019-02-01
;Ruf, Matthias Référence Archive for rational mechanics and analysis, 231, 2, page (845-886)
Publication Publié, 2019-02-01
Article révisé par les pairs
| Résumé : | Since the seminal contribution of Geymonat, Müller, and Triantafyllidis, it has been known that strong ellipticity is not necessarily conserved through periodic homogenization in linear elasticity. This phenomenon is related to microscopic buckling of composite materials. Consider a mixture of two isotropic phases which leads to loss of strong ellipticity when arranged in a laminate manner, as considered by Gutiérrez and by Briane and Francfort. In this contribution we prove that the laminate structure is essentially the only microstructure which leads to such a loss of strong ellipticity. We perform a more general analysis in the stationary, ergodic setting. |
