|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Biological Materials Science
||Interwoven Lattices Inspired by the Venus Flower Basket
||Yash Mistry, Swapnil Morankar, Nikhilesh Chawla, Clint Penick, Dhruv Bhate
|On-Site Speaker (Planned)
The Venus flower basket (Euplectella aspergillum) is structure composed primarily of brittle silica, arranged in a hierarchical lattice-like design. The intrinsic microstructural features can serve as inspiration for robust, multifunctional, engineered lattice structures. In this work, we used x-ray microtomography to image and understand the complex network of lattices. The lattice network can be represented as two interwoven lattices crossing each other, with diagonal struts weaving around the cylindrical geometry. The role of these microstructures on mechanical properties was quantified by fabricating samples by additive manufacturing. Cylindrical specimens were then evaluated under three loading conditions: compression, four-point bending, and torsion. The experimental results were compared with a baseline lattice design without any weaving. Results show that interwoven lattices makes the structure more compliant having higher densification strain values. The use of the hierarchical woven structure as a means of enabling high compliance and energy absorption will also be discussed.
||Additive Manufacturing, Biomaterials, Other