Micromechanical modelling of reversible and irreversible thermo-mechanical deformation of oriented polyethylene terephthalate
| Autor: | van Jaw Hans Dommelen, Leon Le Govaert, Mgd Marc Geers, M Mikhail Poluektov |
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| Přispěvatelé: | Mechanics of Materials, Processing and Performance, Mechanical Engineering, Group Geers |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Aggregate (composite)
Materials science General Computer Science General Physics and Astronomy Micromechanics General Chemistry Deformation (meteorology) Microstructure Computational Mathematics chemistry.chemical_compound Deformation mechanism chemistry Creep Mechanics of Materials Phase (matter) Polyethylene terephthalate General Materials Science Composite material |
| Zdroj: | Computational Materials Science, 98, 189-200. Elsevier |
| ISSN: | 0927-0256 |
| Popis: | In this article, the reversible and irreversible thermo-mechanical time-dependent deformation of oriented polyethylene terephthalate film is studied. A mean-field model is used to simulate these effects along with the long-term creep behaviour, taking into account the underlying material microstructure and differences in constitutive behaviour of the phases. The material is modelled as an aggregate of layered two-phase domains. Irreversible deformation, or partial shape recovery, results from the presence of an internal stress, which is characterised and incorporated into the constitutive behaviour of the non-crystalline phase. Using the micromechanical approach, the deformation mechanisms at the local scale are analysed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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