|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Advanced Biomaterials
||PAN-7: Nature's Technical Ceramic: The Avian Eggshell
||Eric Nicolas Hahn, Andrei Pissarenko, Vincent Robert Sherman, Daniel Jogaib Fernandes, Marc Andre Meyers
|On-Site Speaker (Planned)
Avian eggshells break easily when impacted at a localized point, however they exhibit an impressive resistance when subject to a well-distributed slow compressive load. The present research provides insight into the underlying mechanics by evaluating both macroscopic and microstructural features. Eggs of varying species and size, from quail to ostrich, and source, from regular to organic, are investigated. Careful loading configurations allowed compression experiments to be conducted along the long axis of the egg by using rounded rubber cushions between steel platens and the egg. The force at failure scales with egg size and shell thickness, reaching loads upwards of 5000N for ostrich eggs. Failure occurs by axial splitting parallel to the loading direction due to radial hoop tensile stresses developing on the outer shell. Finite element analyses are employed to correlate an applied force to lateral hoop stresses to assess the eggshell's strain and moduli.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)