|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Biological Materials Science
||Optimizing the Structure-property Relationship of Shark Teeth Using Bio-inspired Design
||John Wood, Hongjoo Rhee, A. C. McIntosh, M. F. Horstemeyer, M. A. Murphy, R. Prabhu
|On-Site Speaker (Planned)
The goal of this study is to quantify the structure-property relationship for Great White (Carcharodon carcharias) and Tiger (Galeocerdo cuvier) shark teeth to determine optimized shearing parameters. We believe that shark teeth serrations provide an opportune source of bio-inspiration for designing optimized engineered cutting tools. To test this hypothesis, each tooth was tested for mechanical and chemical properties. Nanoindentation provided mechanical properties, while energy dispersive X-ray spectroscopy provided chemical properties. Additionally, micrographs and scanning electron microscopy allowed geometric details to be examined. Data from these tests were used to design and calibrate shark teeth finite element (FE) models. These FE simulations were conducted to determine the optimal penetration parameters for each tooth’s mechanical properties. These shark tooth simulation results show that there is an optimal hierarchical structure for shearing efficiency during penetration scenarios involving varying angles, velocities, and levels of serrated edges.
||Planned: Supplemental Proceedings volume