About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Biological Materials Science
|
Presentation Title |
Ultra-compliant Lattices Inspired by the Venus Flower Basket: From Structural Study to Design Insights |
Author(s) |
Dhruv Bhate, Yash Mistry, Swapnil Morankar, Oliver Weeger, Nikhilesh Chawla, Clint Penick |
On-Site Speaker (Planned) |
Dhruv Bhate |
Abstract Scope |
The Venus flower basket (Euplectella aspergillum) is a sea sponge that consists of a lattice-like structure composed primarily of silica. In this work, we report findings from our work abstracting meaningful design principles from this sea sponge. We first identify three specific design principles of the Venus flower basket: the interwoven nature of the lattice, the presence of a diagonal weave, and the development of a helical ridge. We then study their influence on mechanical behavior under three different loading conditions - compression, four-point bending, and torsion. Inspired by these observations, we propose a new class of ultra-compliant interwoven lattices that demonstrate up to an order of magnitude improvement in compliance over their traditional counterparts at similar volume fractions, achieved by decoupling nodes selectively. This is first demonstrated with BCC lattices, but is shown to be general enough to be applicable to a wide range of lattice structures. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Biomaterials, Other |