|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Biological Materials Science Symposium
||Bio-inspired Phase Transforming Materials for Energy Dissipation
||David Restrepo, Nilesh Mankame, Pablo Zavattieri
|On-Site Speaker (Planned)
Phase transformations are a common mechanisms employed in nature for the dissipation of large amounts of mechanical energy. As an example, it has been reported that Marine Whelk eggs are able to resist shock waves by transforming form a α helical phase to an elongated β phase. Similar behavior has been observed in the Titin and DNA proteins, and nacre adhesive molecules. Inspired on these dissipation mechanisms observed in nature, we introduce the concept of Phase Transforming Cellular Materials (PXCMs), by extending the notion of phase transformations to cellular materials. In this talk, we present a cellular material that exhibits phase transformation and use finite element simulations and analytical models to understand the underlying mechanics of the unit cell that allows the material to exhibit phase transformations. Preliminary results show that this material is characterized by long serrated loading and unloading plateaus and it exhibits hysteresis under cycling load.
||Planned: Publication Outside of TMS (Indicate publication title and publisher if known.)