The beetle elytron plate: a lightweight, high-strength and buffering functional-structural bionic material

To investigate the characteristics of compression, buffering and energy dissipation in beetle elytron plates (BEPs), compression experiments were performed on BEPs and honeycomb plates (HPs) with the same wall thickness in different core structures and using different molding methods. The results ar...

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Bibliographic Details
Published in:Scientific reports 2017-06, Vol.7 (1), p.4440-7, Article 4440
Main Authors: Zhang, Xiaoming, Xie, Juan, Chen, Jinxiang, Okabe, Yoji, Pan, Longcheng, Xu, Mengye
Format: Article
Language:English
Subjects:
631/61/2049
631/61/54
Algorithms
Animals
Bionics
Coleoptera - anatomy & histology
Coleoptera - physiology
Coleoptera - ultrastructure
Compression
Energy dissipation
Humanities and Social Sciences
Manufacturing industry
Mechanical properties
Models, Theoretical
multidisciplinary
Science
Science (multidisciplinary)
Structure-function relationships
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Summary:To investigate the characteristics of compression, buffering and energy dissipation in beetle elytron plates (BEPs), compression experiments were performed on BEPs and honeycomb plates (HPs) with the same wall thickness in different core structures and using different molding methods. The results are as follows: 1) The compressive strength and energy dissipation capacity in the BEP are 2.44 and 5.0 times those in the HP, respectively, when the plates are prepared using the full integrated method (FIM). 2) The buckling stress is directly proportional to the square of the wall thickness (t). Thus, for core structures with equal wall thicknesses, although the core volume of the BEP is 42 percent greater than that of the HP, the mechanical properties of the BEP are several times higher than those of the HP. 3) It is also proven that even when the single integrated method (SIM) is used to prepare BEPs, the properties discussed above remain superior to those of HPs by a factor of several; this finding lays the foundation for accelerating the commercialization of BEPs based on modern manufacturing processes.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-03767-w