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A multi-scale approach to model the curing process in magneto-sensitive polymeric materials

Mokarram Hossain Orcid Logo, George Chatzigeorgiou, Fodil Meraghni, Paul Steinmann

International Journal of Solids and Structures, Volume: 69-70, Pages: 34 - 44

Swansea University Author: Mokarram Hossain Orcid Logo

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Abstract

We propose a magneto-mechanically coupled multi-scale model for simulating the curing process of polymers. In the case of magneto-sensitive polymers, micron-size ferromagnetic particles are mixed with a liquid polymeric matrix in the uncured stage. The polymer curing process is a complex process tha...

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Published in: International Journal of Solids and Structures
ISSN: 0020-7683
Published: Elsevier 2015
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa39633
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Abstract: We propose a magneto-mechanically coupled multi-scale model for simulating the curing process of polymers. In the case of magneto-sensitive polymers, micron-size ferromagnetic particles are mixed with a liquid polymeric matrix in the uncured stage. The polymer curing process is a complex process that transforms a fluid to a solid with time. To transfer the constituent parameter information from the micro-scale to the macro-scale for a composite magneto-mechanically coupled polymeric material, an extended Mori–Tanaka semi-analytic homogenization procedure is utilized. The stiffness gaining phenomenon as in the case of a curing process is realized by time-dependent material parameters appearing within the composite piezomagnetic material tensors. Moreover, to compute the volume reduction during curing, a magnetic induction dependent shrinkage model is proposed. Several numerical examples show that the model proposed herein can capture major observable phenomena in the curing process of polymers under magneto-mechanically coupled infinitesimal deformations.
Keywords: Magneto-sensitive polymers, Polymer curing, Shrinkage, Homogenization, Magneto-mechanical coupled problem, Mori–Tanaka model
College: College of Engineering
Start Page: 34
End Page: 44