Cyclic Failure Testing of Straight-Fiber Pneumatic Artificial Muscles for Optimizing Durability
| Autor: | Shingo Ando, Hiroki Tomori, Yohei Sato |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science 020208 electrical & electronic engineering 02 engineering and technology Elastomer Durability Aramid 020901 industrial engineering & automation Pneumatic artificial muscles Natural rubber visual_art 0202 electrical engineering electronic engineering information engineering visual_art.visual_art_medium Shear stress Artificial muscle Fiber Composite material |
| Zdroj: | IECON |
| DOI: | 10.1109/iecon.2019.8927274 |
| Popis: | This study aimed to improve the lifetime of a rubber pneumatic artificial muscles by subjecting samples to cyclic loading until failure. The results suggest design innovations that concentrate failures on the rubber bladder, which will be easier to repair than other failure points, or could be replaced with self-healing elastomers currently in development. Samples with different end rings and fiber layers were tested. In cyclic driving tests, some parts of the artificial muscle caused large shearing stress in the carbon-fiber layers which led carbon fibers to fracture and the rubber layer to burst. Aramid fibers tended not to break, only developing small cracks at the center of the fiber, which could be repaired. The experimental tests offer insight into the failure mechanisms of pneumatic artificial muscles, and suggest design innovations that can be tested in the future. |
| Databáze: | OpenAIRE |
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