Modelling the mechanical aspects of the curing process of magneto-sensitive elastomeric materials

Hossain, M., Saxena, P. and Steinmann, P. (2015) Modelling the mechanical aspects of the curing process of magneto-sensitive elastomeric materials. International Journal of Solids and Structures, 58, pp. 257-269. (doi: 10.1016/j.ijsolstr.2015.01.010)

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In this paper, a phenomenologically motivated magneto-mechanically coupled finite strain elastic framework for simulating the curing process of polymers in the presence of a magnetic load is proposed. This approach is in line with previous works by Hossain and co-workers on finite strain curing modelling framework for the purely mechanical polymer curing (Hossain et al., 2009b). The proposed thermodynamically consistent approach is independent of any particular free energy function that may be used for the fully-cured magneto-sensitive polymer modelling, i.e. any phenomenological or micromechanical-inspired free energy can be inserted into the main modelling framework. For the fabrication of magneto-sensitive polymers, micron-size ferromagnetic particles are mixed with the liquid matrix material in the uncured stage. The particles align in a preferred direction with the application of a magnetic field during the curing process. The polymer curing process is a complex (visco) elastic process that transforms a fluid to a solid with time. Such transformation process is modelled by an appropriate constitutive relation which takes into account the temporal evolution of the material parameters appearing in a particular energy function. For demonstration in this work, a frequently used energy function is chosen, i.e. the classical Mooney–Rivlin free energy enhanced by coupling terms. Several representative numerical examples are demonstrated that prove the capability of our approach to correctly capture common features in polymers undergoing curing processes in the presence of a magneto-mechanical coupled load.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Saxena, Dr Prashant and Steinmann, Professor Paul
Authors: Hossain, M., Saxena, P., and Steinmann, P.
Subjects:Q Science > QA Mathematics
T Technology > TA Engineering (General). Civil engineering (General)
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:International Journal of Solids and Structures
ISSN (Online):1879-2146
Published Online:16 January 2015
Copyright Holders:Copyright © 2015 Elsevier
First Published:First published in International Journal of Solids and Structures 58:257-269
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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