|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Biological Materials Science
||Stretch-and-release Fabrication, Testing and Optimization of a Bioinspired Flexible Ceramic Armor
||Roberto Martini, Francois Barthelat
|On-Site Speaker (Planned)
Protective systems that are simultaneously hard to puncture and compliant in flexion are desirable, but difficult to achieve because hard materials are usually stiff. This conflict can be overcome by combining plates of a hard material with a softer substrate, a strategy which is widely found in natural armors such as fish scales and osteoderms. Here we fabricated and tested a flexible bioinspired armor based on overlapping ceramic scales. The fabrication protocol combines laser engraving and a stretch and release method which allows for fine tuning of the size and overlap of the scales. Compared to a continuous layer of uniform ceramic our fish-scale like armor is not only more compliant, but also more resistant to sharp puncture because of the reduced flexural span of the individual scales. Segmented protective systems therefore do not necessarily compromise resistance to puncture for flexibility, and important finding for the design of bio-inspired armor.
||Planned: Supplemental Proceedings volume