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https://hdl.handle.net/10216/97378
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DC Field | Value | Language |
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dc.creator | Rui Miranda Guedes | |
dc.date.accessioned | 2019-02-03T06:42:55Z | - |
dc.date.available | 2019-02-03T06:42:55Z | - |
dc.date.issued | 2011 | |
dc.identifier.issn | 0142-9418 | |
dc.identifier.other | sigarra:63031 | |
dc.identifier.uri | https://repositorio-aberto.up.pt/handle/10216/97378 | - |
dc.description.abstract | The applicability of a proposed viscoelastic model, previously developed to model dynamic behaviour of ultra-high molecular weight polyethylenes (UHMWPE), was assessed using three different UHMWPE medical grades. The dynamic data, collected from literature, was obtained via DMTA (Dynamic Mechanical Thermal Analysis) operated over a wide temperature and frequency range. The time-temperature superposition principle (TTSP) was applied to dynamic data via the proposed viscoelastic model. A reference temperature of 37 degrees C was selected. It was verified that both horizontal and vertical shifts are necessary to superimpose the dynamic modulus/frequency curves of all UHMWPE grades. Moreover, it was shown that the aging effect can be modelled using an aging-time superposition principle based on the proposed viscoelastic model. Again, both horizontal and vertical shifts were necessary to superimpose the aged and non-aged dynamic modulus/frequency curves at 37 degrees C. | |
dc.language.iso | eng | |
dc.rights | restrictedAccess | |
dc.subject | Engenharia dos materiais | |
dc.subject | Materials engineering | |
dc.title | Analysis of temperature and aging effects on biomedical ultra-high molecular weight polyethylene's grades using a viscoelastic model | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Engenharia | |
dc.identifier.doi | 10.1016/j.polymertesting.2011.05.003 | |
dc.identifier.authenticus | P-002-NFS | |
dc.subject.fos | Ciências da engenharia e tecnologias::Engenharia dos materiais | |
dc.subject.fos | Engineering and technology::Materials engineering | |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
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File | Description | Size | Format | |
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63031.pdf Restricted Access | 235.34 kB | Adobe PDF | Request a copy from the Author(s) |
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