A physically-based model for strain-induced crystallization in natural rubber. Part I: Life cycle of a crystallite - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the Mechanics and Physics of Solids Année : 2019

A physically-based model for strain-induced crystallization in natural rubber. Part I: Life cycle of a crystallite

Résumé

Despite the numerous experimental investigations performed over the past century and more intensively in the last fifteen years, strain-induced crystallization in natural rubber still remains hardly understood in its precise mechanisms: a complete theoretical description for crystallization and melting of the involved crystallites is still needed to derive relevant physically-based mechanical constitutive equations. Therefore, the present Part I of our work proposes a coherent theory describing the full nucleation–growth–melting cycle of these crystallites, by using classical thermodynamics of phase transitions and by accounting for the topological constraints due to the network. A graphical representation of crystallite evolution involving strain, temperature, and crystallite size is then introduced, using a physical parameter to express the change of Gibbs free energy due to surface creation for a unit volume of crystalline phase. Finally, experimental results from literature exhibiting shape-memory effects in rubber are elucidated using this crystallite life cycle theory.
Fichier principal
Vignette du fichier
Gros2018b.pdf (375.66 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04408054 , version 1 (21-01-2024)

Identifiants

Citer

Alice Gros, Bertrand Huneau, Erwan Verron, Masatoshi Tosaka. A physically-based model for strain-induced crystallization in natural rubber. Part I: Life cycle of a crystallite. Journal of the Mechanics and Physics of Solids, 2019, 125, pp.164-177. ⟨10.1016/j.jmps.2018.12.011⟩. ⟨hal-04408054⟩
31 Consultations
11 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More