| Full text | |
| Author(s): |
de Sousa, Vagner Candido
;
Sugino, Christopher
;
De Marqui Junior, Carlos
;
Erturk, Alper
;
Erturk, A
;
Han, JH
Total Authors: 6
|
| Document type: | Journal article |
| Source: | ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS XII; v. 10595, p. 12-pg., 2018-01-01. |
| Abstract | |
Locally resonant metamaterials offer bandgap formation for wavelengths much longer than the lattice size, enabling low-frequency and wideband vibration attenuation. Acoustic/elastic metamaterials made from resonating components usually do not exhibit reconfigurable and adaptive characteristics since the bandgap frequency range (i.e. target frequency and bandwidth combination) is fixed for a given mass ratio and stiffness of the resonators. In this work, we explore locally resonant metamaterials that exploit shape-memory alloy springs in an effort to develop adaptive metamaterials that can exhibit tunable bandgap properties. An analytical model for locally resonant metastructures (i.e. metamaterials with specific boundary conditions) is combined with a shape-memory spring model of the resonator springs to investigate and exploit the potential of temperature-induced phase transformations and stress-induced hysteretic behavior of the springs. Various case studies are presented for this new class of smart metamaterials and metastructures. (AU) | |
| FAPESP's process: | 17/08467-6 - Effects of shape memory alloy elements on the behavior of aeroelastic systems and adaptive metamaterials |
| Grantee: | Vagner Candido de Sousa |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 15/26045-6 - Effects of shape memory alloy elements on the behavior of aeroelastic systems and adaptive metamaterials |
| Grantee: | Vagner Candido de Sousa |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |