Comparative low-velocity impact behavior of bio-inspired and conventional sandwich composite beams
| Autor: | Ahmad Beng Hong Kueh, M.Y. Al-Fasih, S.H. Abo Sabah |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Numerical analysis General Engineering 02 engineering and technology Deformation (meteorology) 021001 nanoscience & nanotechnology Finite element method Stress (mechanics) 020303 mechanical engineering & transports 0203 mechanical engineering Natural rubber visual_art Ceramics and Composites visual_art.visual_art_medium Composite material Impact 0210 nano-technology Beam (structure) Added mass |
| Zdroj: | Composites Science and Technology. 149:64-74 |
| ISSN: | 0266-3538 |
| DOI: | 10.1016/j.compscitech.2017.06.014 |
| Popis: | A novel woodpecker's head-inspired sandwich beam, comprising carbon fiber laminated skins with rubber and aluminum honeycomb cores, was developed for low-velocity impact behavior improvement. A comparative study against conventional sandwich beam was performed employing three impact energy levels (7.28 J, 9.74 J, 12.63 J) by means of experimental and numerical methods. In all cases, bio-inspired beams were consistently superior to those conventional, with low developed stress, deformation, and damage area while carrying higher maximum impact force. Even with a low added mass, the impact resistance efficiencies of the bio-inspired beams were 2.7–5.7 times greater than those of conventional configuration, thus exhibiting an improved impact performance of the developed bio-inspired beam useful for future protection strategy. |
| Databáze: | OpenAIRE |
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