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Experimental arrangement for measuring the high-strain-rate response of polymers under pressures

Alkhader, Maen and Knauss, Wolfgang and Ravichandran, Guruswami (2011) Experimental arrangement for measuring the high-strain-rate response of polymers under pressures. In: Mechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials. Conference Proceedings of the Society for Experimental Mechanics Series. Vol.3. Springer , New York, NY, pp. 139-144. ISBN 978-1-4614-0212-1. https://resolver.caltech.edu/CaltechAUTHORS:20200520-144612061

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Abstract

This study aims to investigate the high-strain-rate shear response of viscoelastic elastomeric coatings at large strains and under elevated levels of hydrostatic pressure. Results of this study shed light on the combined effects of deformation rate and pressure which might promote a transition from viscoelastic to glassy behavior. This work utilizes a Split Hopkinson Pressure Bar (SHPB) apparatus in conjunction with a customized version of the recently proposed Shear Compression Specimen (SCS) which consists of a polymer gage section with two metal ends that remain essentially rigid during deformation. Detailed finite element simulations were used to customize the adopted specimen, to determine its proper dimensions and promote its functionality. The customized specimen permits subjecting the tested specimen to a state of uniform pressure and shear stress, while allowing for measuring pressure, shear stress and shear strain directly. Results obtained using the customized specimen, which are included in this paper, illustrate its usefulness in measuring the effect of high-strain-rate, large strain and hydrostatic pressure on the shear stress-strain response of viscoelastic elastomers.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/978-1-4614-0213-8_20DOIArticle
https://rdcu.be/b4iMsPublisherFree ReadCube access
ORCID:
AuthorORCID
Ravichandran, Guruswami0000-0002-2912-0001
Additional Information:© 2011 The Society for Experimental Mechanics, Inc. First Online: 17 May 2011.
Group:GALCIT
Subject Keywords:Constitutive Model; Inclination Angle; High Strain Rate; Shear Strain Rate; Shear Response
Series Name:Conference Proceedings of the Society for Experimental Mechanics Series
Record Number:CaltechAUTHORS:20200520-144612061
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200520-144612061
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103367
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 May 2020 21:54
Last Modified:20 May 2020 21:54

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