EXPERIMENTAL INVESTIGATIONS ON VISCOELASTIC PROPERTIES OF A SHAPE MEMORY POLYMER
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | EXPERIMENTAL INVESTIGATIONS ON VISCOELASTIC PROPERTIES OF A SHAPE MEMORY POLYMER |
| Type de publication | Conference Paper |
| Year of Publication | 2014 |
| Auteurs | Butaud P, Ouisse M, Placet V, Foltete E |
| Conference Name | PROCEEDINGS OF THE ASME CONFERENCE ON SMART MATERIALS, ADAPTIVE STRUCTURES AND INTELLIGENT SYSTEMS, 2014, VOL 1 |
| Publisher | ASME, Aerospace Div |
| Conference Location | THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA |
| ISBN Number | 978-0-7918-4614-8 |
| Résumé | The shape memory polymers (SMPs) are polymeric smart materials which have the remarkable ability to recover their primary shape from a temporary one under an external stimulus. The study deals with the synthesis and the thermo-mechanical characterization of a thermally-actuated SMP, the tBA/PEGDMA, with a special focus on viscoelastic properties. The mechanical characterization is performed using three kinds of tests: quasi-static tensile tests, dynamic mechanical analysis (DMA) and modal tests. The first one allows the identification of the Youngs modulus and the Poisson's ratio at ambient temperature. Modal analyses are done for various temperature values, and resonance frequencies are measured. In order to validate the time-temperature equivalence on this SMP, a DMA is performed under harmonic loading for different temperatures and a master curve highlights a complementarily of the results. Finally a suitable model for the viscoelastic behavior of the SMP is identified. |