Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijimpeng.2012.04.001
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dc.titleA constitutive description of elastomer behaviour at high strain rates - A strain-dependent relaxation time approach
dc.contributor.authorPouriayevali, H.
dc.contributor.authorGuo, Y.B.
dc.contributor.authorShim, V.P.W.
dc.date.accessioned2014-06-16T09:25:40Z
dc.date.available2014-06-16T09:25:40Z
dc.date.issued2012-09
dc.identifier.citationPouriayevali, H., Guo, Y.B., Shim, V.P.W. (2012-09). A constitutive description of elastomer behaviour at high strain rates - A strain-dependent relaxation time approach. International Journal of Impact Engineering 47 : 71-78. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijimpeng.2012.04.001
dc.identifier.issn0734743X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/54024
dc.description.abstractA strain-dependent relaxation time perspective is proposed for a visco-hyperelastic constitutive equation to describe the large compressive and tensile deformation response of incompressible elastomeric materials at high strain rates. The description comprises two components: the first characterizes quasi-static nonlinear response corresponding to hyperelasticity, using a polynomial strain energy density function, while the second is an integral form of first and captures rate sensitivity by incorporating a deformation-dependent relaxation time function. The model is applied to describe the response of six types of elastomer with different hardnesses, namely U50, U70 polyurethane rubber, SHA40, 60, 80 rubber, and Ethylene-Propylene-Diene-Monomer (EPDM) rubber. Material samples are subjected to quasi-static and dynamic loading using a universal testing machine and a Split Hopkinson Bar device respectively. The proposed equation is able to track the experimental responses and demonstrate the potential to predict the dynamic behaviour of elastomeric material over a range of strain rates. © 2012 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.ijimpeng.2012.04.001
dc.sourceScopus
dc.subjectHigh strain rate
dc.subjectRelaxation time
dc.subjectRubber
dc.subjectVisco-hyperelasticity
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.ijimpeng.2012.04.001
dc.description.sourcetitleInternational Journal of Impact Engineering
dc.description.volume47
dc.description.page71-78
dc.description.codenIJIED
dc.identifier.isiut000305171000007
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