Constitutive model for epoxy shape memory polymer with regulable phase transition temperature
| Autor: | Shifeng Xue, Yi Zhang, Fei Zhao, Shichen Zhou, Xueyao Zheng, Bo Zhou |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Quantitative Biology::Biomolecules
Phase transition temperature Materials science Constitutive equation constitutive model 02 engineering and technology Epoxy 021001 nanoscience & nanotechnology Photo curing Condensed Matter::Soft Condensed Matter Shape-memory polymer 020303 mechanical engineering & transports 0203 mechanical engineering regulable phase transition temperature photo curing Mechanics of Materials visual_art lcsh:TA401-492 visual_art.visual_art_medium lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science Composite material epoxy shape memory polymer 0210 nano-technology Civil and Structural Engineering |
| Zdroj: | International Journal of Smart and Nano Materials, Vol 12, Iss 1, Pp 72-87 (2021) |
| ISSN: | 1947-542X 1947-5411 |
| Popis: | The epoxy shape memory polymer (SMP) with adjustable phase transition temperature is a kind of high-performance shape memory polymer, which can change its phase transition temperature and improve its mechanical properties through the process of photo curing. An epoxy SMP constitutive model combining phase transition and viscoelasticity is established by discretizing the epoxy SMP into several glass phase units and rubbery phase units in this paper. The model includes the viscoelastic constitutive equations of glass phase units and rubber phase units, the parameter expression during shape memory process, and material parameter equation during photocuring process. And the stress relaxation behavior of epoxy SMP at different temperatures and the change of material parameters during the photo-curing process are simulated numerically, and the simulation results perform consistency with the experimental data. The model can not only relate shape memory effect and phase transformation in physics but also better characterize the viscoelastic properties of SMP and predict the shape memory response of SMP. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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