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Towards thermo-viscoelastic experimental characterisation and numerical modelling of VHB polymer / Mokarram, Hossain

8th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry, 2019, Volume: 8, Issue: 1

Swansea University Author: Mokarram, Hossain

DOI (Published version): 10.19211/KUP9783737650939

Abstract

In this study, we have presented a wide variety of temperature experiments of a commercially available VHB polymer ranging from -30◦C to 80◦C at various strain rates and stretch levels under homogeneous deformation and temperature fields. The study demonstrates a pronounced influence of the temperat...

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Published in: 8th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry, 2019
ISBN: 978-3-7376-5093-9
Published: Kassel, Germany German Association of Computational Mechanics 2019
Online Access: https://www.uni-kassel.de/upress/online/OpenAccess/978-3-7376-5093-9.OpenAccess.pdf
URI: https://cronfa.swan.ac.uk/Record/cronfa52125
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Abstract: In this study, we have presented a wide variety of temperature experiments of a commercially available VHB polymer ranging from -30◦C to 80◦C at various strain rates and stretch levels under homogeneous deformation and temperature fields. The study demonstrates a pronounced influence of the temperature field on mechanical responses of the VHB polymer. After a wide range of experiments, we have proposed a finite-strain thermo-viscoelastic constitutive model where a non-linear evolution law is devised based on the classical concept of multiplicative decomposition of the deformation gradient. Then, decoupled one-dimensional equations are fitted to identify relevant material parameters appearing in the model. The thermo-viscoelastic model validation shows its excellent capability to predict the experimental results.
College: College of Engineering
Issue: 1