| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Role of the Inner Architecture of a Naturally-ocurring Interlocking Interface Found in the Diabolical Ironclad Beetle |
| Author(s) |
Maryam Hosseini, Jesus Rivera, David Restrepo, David Kisailus, Pablo Zavattieri |
| On-Site Speaker (Planned) |
Pablo Zavattieri |
| Abstract Scope |
The focus of this work is to understand the role of the inner architecture in naturally-occuring interlocking interfaces. More specific, we study the abdominal portion of the exoskeleton, consisting of the elytra and ventral cuticle of the diabolical ironclad beetle, a terrestrial beetle that is well known for its high compressive strength, far beyond any other beetle identified to date. The beetle elytra consists of two separated parts connected using dovetail-joints blades and contains a hierarchical assembly of alpha-chitin fibers embedded within a proteinaceous matrix that provides both strength and toughness. We employ a combination of computational models and 3D printing prototypes to study the various competing mechanisms that emerge from the fracture behavior of such joints. In turns, this natural system represents a tough, damage tolerant biological joint that can inspire a new family of architectured materials. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |