Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplastics
The use of thermoplastics in the automotive industry is continuously increasing. Design of parts require the characterization and numerical modelling of thermo-mechanical behaviour of those materials under wide strain rate (0–300 s−1) and temperature ranges (−30 °C to +85 °C). Large and costly exper...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-09-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941821002361 |
| _version_ | 1818736761498501120 |
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| author | Vincent Dorléans Rémi Delille Delphine Notta-Cuvier Franck Lauro Eric Michau |
| author_facet | Vincent Dorléans Rémi Delille Delphine Notta-Cuvier Franck Lauro Eric Michau |
| author_sort | Vincent Dorléans |
| collection | DOAJ |
| description | The use of thermoplastics in the automotive industry is continuously increasing. Design of parts require the characterization and numerical modelling of thermo-mechanical behaviour of those materials under wide strain rate (0–300 s−1) and temperature ranges (−30 °C to +85 °C). Large and costly experimental campaigns are therefore necessary to identify all behaviour's sensitivities. Yet, the time-temperature-superposition (TTS) principle may be a powerful tool to strongly reduce the number of required tests.This paper demonstrates the possibility to extend this principle to the viscoplastic domain while keeping the same shift factors identified for viscoelasticity. So, a limited number of tests (DMA and tensile tests at room temperature only) now enable the characterization of whole thermoplastic behaviour. This new approach is implemented in a viscoelastic, viscoplastic behaviour model. A good correlation between numerical simulations and experiments validate the approach. |
| first_indexed | 2024-12-18T00:42:17Z |
| format | Article |
| id | doaj.art-6233a7308ffe49e18e1cd0738e7c8685 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-18T00:42:17Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-6233a7308ffe49e18e1cd0738e7c86852022-12-21T21:26:52ZengElsevierPolymer Testing0142-94182021-09-01101107287Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplasticsVincent Dorléans0Rémi Delille1Delphine Notta-Cuvier2Franck Lauro3Eric Michau4FAURECIA Interior System, Méru, France; Univ. Polytechnique Hauts-de-France, LAMIH, CNRS, UMR 8201, F-59313, Valenciennes, FranceUniv. Polytechnique Hauts-de-France, LAMIH, CNRS, UMR 8201, F-59313, Valenciennes, FranceUniv. Polytechnique Hauts-de-France, LAMIH, CNRS, UMR 8201, F-59313, Valenciennes, France; INSA Hauts-de-France, F-59313, Valenciennes, France; Corresponding author. Univ. Polytechnique Hauts-de-France, LAMIH, CNRS, UMR 8201, F-59313, Valenciennes, France.Univ. Polytechnique Hauts-de-France, LAMIH, CNRS, UMR 8201, F-59313, Valenciennes, FranceFAURECIA Interior System, Méru, FranceThe use of thermoplastics in the automotive industry is continuously increasing. Design of parts require the characterization and numerical modelling of thermo-mechanical behaviour of those materials under wide strain rate (0–300 s−1) and temperature ranges (−30 °C to +85 °C). Large and costly experimental campaigns are therefore necessary to identify all behaviour's sensitivities. Yet, the time-temperature-superposition (TTS) principle may be a powerful tool to strongly reduce the number of required tests.This paper demonstrates the possibility to extend this principle to the viscoplastic domain while keeping the same shift factors identified for viscoelasticity. So, a limited number of tests (DMA and tensile tests at room temperature only) now enable the characterization of whole thermoplastic behaviour. This new approach is implemented in a viscoelastic, viscoplastic behaviour model. A good correlation between numerical simulations and experiments validate the approach.http://www.sciencedirect.com/science/article/pii/S0142941821002361ThermoplasticsTime-temperature-superposition principleViscoelasticityViscoplasticity |
| spellingShingle | Vincent Dorléans Rémi Delille Delphine Notta-Cuvier Franck Lauro Eric Michau Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplastics Polymer Testing Thermoplastics Time-temperature-superposition principle Viscoelasticity Viscoplasticity |
| title | Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplastics |
| title_full | Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplastics |
| title_fullStr | Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplastics |
| title_full_unstemmed | Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplastics |
| title_short | Time-temperature superposition in viscoelasticity and viscoplasticity for thermoplastics |
| title_sort | time temperature superposition in viscoelasticity and viscoplasticity for thermoplastics |
| topic | Thermoplastics Time-temperature-superposition principle Viscoelasticity Viscoplasticity |
| url | http://www.sciencedirect.com/science/article/pii/S0142941821002361 |
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