| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Mechanics of Segmented Protection in Nature and in Engineering: A Rich Landscape for Tunability and Performance |
| Author(s) |
Francois Barthelat, Ali Shafiei |
| On-Site Speaker (Planned) |
Francois Barthelat |
| Abstract Scope |
Segmented natural armors such as fish scales display unique and attractive combinations of hardness, flexibility and light weight. These protective systems have started to serve as model for bio-inspiration, but there is still little guideline for the choice of materials, optimum thickness, size, shape and arrangement for synthetic protective scales. In this talk I will review our recent experimental and modeling work on the mechanics of natural and synthetic scales. In particular I will discuss how hard plates on soft substrates or membranes which are orders of magnitude softer than the plates can give rise to a rich set of mechanisms for puncture, flexion and buckling by way of controlled scales-substrate and scale-scale interactions. Asymmetries in stiffness, high puncture resistance, non-linearities and buckling modes can be manipulated with the geometry and arrangement of the scales. These lessons are now implemented in high-performance, flexible protective systems. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |