Journal
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
Volume 73, Issue -, Pages 50-67Publisher
ELSEVIER
DOI: 10.1016/j.jmbbm.2017.02.027
Keywords
Turtle shell; Biological composites; Hierarchical structure; Bio-inspired materials; Mechanical properties; Functionally graded materials
Funding
- Israel Science Foundation [727/14]
- G.M.J. Schmidt Minerva Centre of Supramolecular Architectures
Ask authors/readers for more resources
The turtle carapace, the top dorsal part of the shell, is a remarkable multi-scale dermal armor that has evolved to withstand various types of high-stress events encountered in nature. This keratin-covered boney exoskeleton exhibits a number of structural motifs, including alternating rigid and flexible components, layering and functionally graded elements, designed to protect the reptile during predatory attacks, and smashing events. Here we review the multi-scale structural hierarchy of the turtle carapace and its corresponding mechanical properties. We show how the microscopic features of the carapace govern its various macroscopic mechanical responses relevant to protective functioning, including dynamic (impact and cyclic) compression and bending loading situations. In addition, the effect of hydration, a crucial factor for proper physiological-mechanical behavior of biological materials, is illustrated throughout. We also discuss carapace-inspired designs that could be advantageous over the traditional strategies adopted in impact-resistant materials, and could bring new mechanistic insights.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available