Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage

Détails

ID Serval
serval:BIB_724B794F7D79
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Modelling the curing process in magneto-sensitive polymers: Rate-dependence and shrinkage
Périodique
Internationsl Journal of Non-linear Mechaniscs
Auteur(s)
Hossain M., Saxena P., Steinmann P.
ISSN
1878-5638 (electronic)
ISSN-L
0020-7462
Statut éditorial
Publié
Date de publication
2015
Volume
74
Pages
108-121
Langue
anglais
Résumé
This paper deals with a phenomenologically motivated magneto-viscoelastic coupled finite strain framework for simulating the curing process of polymers under the application of a coupled magneto-mechanical road. Magneto-sensitive polymers are prepared by mixing micron-sized ferromagnetic particles in uncured polymers. Application of a magnetic field during the curing process causes the particles to align and form chain-like structures lending an overall anisotropy to the material. The polymer curing is a viscoelastic complex process where a transformation from fluid. to solid occurs in the course of time. During curing, volume shrinkage also occurs due to the packing of polymer chains by chemical reactions. Such reactions impart a continuous change of magneto-mechanical properties that can be modelled by an appropriate constitutive relation where the temporal evolution of material parameters is considered. To model the shrinkage during curing, a magnetic-induction-dependent approach is proposed which is based on a multiplicative decomposition of the deformation gradient into a mechanical and a magnetic-induction-dependent volume shrinkage part. The proposed model obeys the relevant laws of thermodynamics. Numerical examples, based on a generalised Mooney-Rivlin energy function, are presented to demonstrate the model capacity in the case of a magneto-viscoelastically coupled load.
Web of science
Création de la notice
24/07/2015 8:14
Dernière modification de la notice
03/03/2018 18:17
Données d'usage