Multiple-length-scale deformation analysis in a thermoplastic polyurethane
Thermoplastic polyurethane elastomers enjoy an exceptionally wide range of applications due to their remarkable versatility. These block co-polymers are used here as an example of a structurally inhomogeneous composite containing nano-scale gradients, whose internal strain differs depending on the l...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Springer Nature
2015
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| _version_ | 1797091327410700288 |
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| author | Sui, T Baimpas, N Dolbnya, I Prisacariu, C Korsunsky, A |
| author_facet | Sui, T Baimpas, N Dolbnya, I Prisacariu, C Korsunsky, A |
| author_sort | Sui, T |
| collection | OXFORD |
| description | Thermoplastic polyurethane elastomers enjoy an exceptionally wide range of applications due to their remarkable versatility. These block co-polymers are used here as an example of a structurally inhomogeneous composite containing nano-scale gradients, whose internal strain differs depending on the length scale of consideration. Here we present a combined experimental and modelling approach to the hierarchical characterization of block co-polymer deformation. Synchrotron-based small- and wide-angle X-ray scattering and radiography are used for strain evaluation across the scales. Transmission electron microscopy image-based finite element modelling and fast Fourier transform analysis are used to develop a multi-phase numerical model that achieves agreement with the combined experimental data using a minimal number of adjustable structural parameters. The results highlight the importance of fuzzy interfaces, that is, regions of nanometre-scale structure and property gradients, in determining the mechanical properties of hierarchical composites across the scales. |
| first_indexed | 2024-03-07T03:31:24Z |
| format | Journal article |
| id | oxford-uuid:bad8b6ae-70f0-4dbb-92bd-0b920a24b93c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:31:24Z |
| publishDate | 2015 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:bad8b6ae-70f0-4dbb-92bd-0b920a24b93c2022-03-27T05:12:42ZMultiple-length-scale deformation analysis in a thermoplastic polyurethaneJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bad8b6ae-70f0-4dbb-92bd-0b920a24b93cEnglishSymplectic Elements at OxfordSpringer Nature2015Sui, TBaimpas, NDolbnya, IPrisacariu, CKorsunsky, AThermoplastic polyurethane elastomers enjoy an exceptionally wide range of applications due to their remarkable versatility. These block co-polymers are used here as an example of a structurally inhomogeneous composite containing nano-scale gradients, whose internal strain differs depending on the length scale of consideration. Here we present a combined experimental and modelling approach to the hierarchical characterization of block co-polymer deformation. Synchrotron-based small- and wide-angle X-ray scattering and radiography are used for strain evaluation across the scales. Transmission electron microscopy image-based finite element modelling and fast Fourier transform analysis are used to develop a multi-phase numerical model that achieves agreement with the combined experimental data using a minimal number of adjustable structural parameters. The results highlight the importance of fuzzy interfaces, that is, regions of nanometre-scale structure and property gradients, in determining the mechanical properties of hierarchical composites across the scales. |
| spellingShingle | Sui, T Baimpas, N Dolbnya, I Prisacariu, C Korsunsky, A Multiple-length-scale deformation analysis in a thermoplastic polyurethane |
| title | Multiple-length-scale deformation analysis in a thermoplastic polyurethane |
| title_full | Multiple-length-scale deformation analysis in a thermoplastic polyurethane |
| title_fullStr | Multiple-length-scale deformation analysis in a thermoplastic polyurethane |
| title_full_unstemmed | Multiple-length-scale deformation analysis in a thermoplastic polyurethane |
| title_short | Multiple-length-scale deformation analysis in a thermoplastic polyurethane |
| title_sort | multiple length scale deformation analysis in a thermoplastic polyurethane |
| work_keys_str_mv | AT suit multiplelengthscaledeformationanalysisinathermoplasticpolyurethane AT baimpasn multiplelengthscaledeformationanalysisinathermoplasticpolyurethane AT dolbnyai multiplelengthscaledeformationanalysisinathermoplasticpolyurethane AT prisacariuc multiplelengthscaledeformationanalysisinathermoplasticpolyurethane AT korsunskya multiplelengthscaledeformationanalysisinathermoplasticpolyurethane |