Abstract
This study designed a novel mechanical metamaterial with multi-stable and mono-stable characteristics, fabricated using carbon fiber composite through a hot-pressing process. The mechanical properties of the designed mechanical metamaterial were obtained through quasi-static compression tests, and the effects of structural geometric parameters on its mechanical performance were analyzed. The finite element model of the mechanical metamaterial was established, and the comparison between the simulation and experiment results showed good agreement. A torque test platform was constructed to measure the torque for transitions between the multi-stable and mono-stable characteristics. The results indicate that transitioning from mono-stable to multi-stable characteristics requires a higher torque than transitioning from multi-stable to mono-stable characteristics. The designed mechanical metamaterial has both multi-stable and mono-stable characteristics, which have potential for a wide range of applications in the field of impact energy absorption as well as vibration attenuation.
| Original language | English |
|---|---|
| Article number | 113230 |
| Journal | Thin-Walled Structures |
| Volume | 212 |
| DOIs | |
| Publication status | Published - Jul 2025 |
Keywords
- Energy absorption
- Mechanical metamaterial
- Mechanical property
- Mono-stable
- Multi-stable