Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.ijimpeng.2004.03.011
DC Field | Value | |
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dc.title | A visco-hyperelastic constitutive description of elastomeric foam | |
dc.contributor.author | Yang, L.M. | |
dc.contributor.author | Shim, V.P.W. | |
dc.date.accessioned | 2014-10-07T09:13:07Z | |
dc.date.available | 2014-10-07T09:13:07Z | |
dc.date.issued | 2004-09 | |
dc.identifier.citation | Yang, L.M., Shim, V.P.W. (2004-09). A visco-hyperelastic constitutive description of elastomeric foam. International Journal of Impact Engineering 30 (8-9) : 1099-1110. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijimpeng.2004.03.011 | |
dc.identifier.issn | 0734743X | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/85867 | |
dc.description.abstract | This study focuses on the constitutive modelling of finite deformation in elastomeric polyurethane foams - in particular, PORON-4701-59-25045-1648 (0.4g/cm3 density) and PORON-4701-59-20093-1648 (0.32g/cm3 density). Their mechanical properties under compression, for engineering strains up to about 80%, are characterized over a range of strain rates between 10-2 and 103/s. Dynamic compression is applied using a split Hopkinson pressure bar device. Experimental results show that the behaviour of elastomeric foam is sensitive to strain rate and can be described by a visco-hyperelastic material model. In this model, the quasi-static response is defined by compressible hyperelasticity, whereby the strain energy potential is assumed to be representable by a newly proposed polynomial series with three independent parameters. Strain rate sensitivity is characterized by incorporating a nonlinear Maxwell relaxation model with four parameters. The (seven) material parameters in the constitutive model are determined from high-speed mechanical testing methods tailored for high-compliance materials. A comparison of predictions based on the proposed frame-independent constitutive equation with experiments shows that the model is able to describe the rate dependent behaviour of the elastomeric foams examined. © 2004 Elsevier Ltd. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.ijimpeng.2004.03.011 | |
dc.source | Scopus | |
dc.subject | Constitutive model | |
dc.subject | Elastomeric foam | |
dc.subject | Finite deformation | |
dc.subject | Viscoelastic | |
dc.type | Conference Paper | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1016/j.ijimpeng.2004.03.011 | |
dc.description.sourcetitle | International Journal of Impact Engineering | |
dc.description.volume | 30 | |
dc.description.issue | 8-9 | |
dc.description.page | 1099-1110 | |
dc.description.coden | IJIED | |
dc.identifier.isiut | 000224179500013 | |
Appears in Collections: | Staff Publications |
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