Article Dans Une Revue Physical Review E Année : 2020

Plasticity and Aging of Folded Elastic Sheets

Résumé

We investigate the dissipative mechanisms exhibited by creased material sheets when subjected to mechanical loading, which comes in the form of plasticity and relaxation phenomena within the creases. After demonstrating that plasticity mostly affects the rest angle of the creases, we devise a mapping between this quantity and the macroscopic state of the system that allows us to track its reference configuration along an arbitrary loading path, resulting in a powerful monitoring and design tool for crease-based metamaterials. Furthermore, we show that complex relaxation phenomena, in particular memory effects, can give rise to a non-monotonic response at the crease level, possibly relating to the similar behavior reported for crumpled sheets. We describe our observations through a classical double-logarithmic time evolution and obtain a constitutive behavior compatible with that of the underlying material. Thus the lever effect provided by the crease allows magnified access to the material's rheology.

Fichier principal
Vignette du fichier
Paper.pdf (7.69 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence
Loading...

Dates et versions

hal-02986999 , version 1 (03-11-2020)

Licence

Identifiants

Citer

T. Jules, Frédéric Lechenault, Mohktar Adda-Bedia. Plasticity and Aging of Folded Elastic Sheets. Physical Review E , 2020, 102 (3), pp.033005. ⟨10.1103/PhysRevE.102.033005⟩. ⟨hal-02986999⟩
173 Consultations
203 Téléchargements

Altmetric

Partager

  • More