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Study of biomechanical, anatomical, and physiological properties of scorpion stingers for developing biomimetic materials.

Authors :
Zhao ZL
Shu T
Feng XQ
Source :
Materials science & engineering. C, Materials for biological applications [Mater Sci Eng C Mater Biol Appl] 2016 Jan 01; Vol. 58, pp. 1112-21. Date of Electronic Publication: 2015 Sep 26.
Publication Year :
2016

Abstract

Through natural selection, many animal organs have evolved superior mechanical properties and elegant hierarchical structures adaptive to their multiple biological functions. We combine experiments and theory to investigate the composition-structure-property-function relations of scorpion stingers. Their hierarchical structures and functionally gradient mechanical properties were revealed. Slow motion analysis of the penetration process of a scorpion stinger was performed to examine the refined survival skills of scorpions. An experiment-based mechanics model of the stinger was proposed, the results of which revealed an optimized range of penetration angle in an insertion event. Both theoretical and numerical results are in good agreement with our experimental measurements. The analysis method and physical insights of this work are potentially important for investigating a general class of sharp-edge biological materials, e.g., cattle horns, spider fangs, cat claws, and plant thorns.<br /> (Copyright © 2015 Elsevier B.V. All rights reserved.)

Details

Language :
English
ISSN :
1873-0191
Volume :
58
Database :
MEDLINE
Journal :
Materials science & engineering. C, Materials for biological applications
Publication Type :
Academic Journal
Accession number :
26478411
Full Text :
https://doi.org/10.1016/j.msec.2015.09.082