In this paper a non linear mathematical model to describe absorption phenomena in polymers is proposed. The model is established assuming that the diffusing penetrant causes a deformation which induces a viscoelastic stress responsible for a convective field. This convective field is defined to represent an opposition of the polymer to the Fickian diffusion. Several numerical examples show the effectiveness of the model.

A new look to non-Fickian diffusion

GRASSI, Mario;
2015-01-01

Abstract

In this paper a non linear mathematical model to describe absorption phenomena in polymers is proposed. The model is established assuming that the diffusing penetrant causes a deformation which induces a viscoelastic stress responsible for a convective field. This convective field is defined to represent an opposition of the polymer to the Fickian diffusion. Several numerical examples show the effectiveness of the model.
File in questo prodotto:
File Dimensione Formato  
1-s2.0-S0307904X14002923-main.pdf

Accesso chiuso

Descrizione: pdf editoriale
Tipologia: Documento in Versione Editoriale
Licenza: Copyright Editore
Dimensione 714.31 kB
Formato Adobe PDF
714.31 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
2827733_1-s2.0-S0307904X14002923-main-PostPrint.pdf

accesso aperto

Descrizione: PostPrint VQR3
Tipologia: Bozza finale post-referaggio (post-print)
Licenza: Digital Rights Management non definito
Dimensione 1.16 MB
Formato Adobe PDF
1.16 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2827733
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 46
  • ???jsp.display-item.citation.isi??? 40
social impact