Comparative low-velocity impact behavior of bio-inspired and conventional sandwich composite beams
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 leve...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
Elsevier Ltd
2017
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/75942/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020904604&doi=10.1016%2fj.compscitech.2017.06.014&partnerID=40&md5=c0e22b562397ff578f123fc0feb9070a |
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| Institution: | Universiti Teknologi Malaysia |
| Summary: | 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. |
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