Mechanical Properties of Highly Deformable Elastomeric Gyroids for Multifunctional Capacitors
Abstract
Triply periodic minimal surface lattices have mechanical properties that derive from the unit cell geometry and the base material. Through computation software like nTopology and Abaqus, these geometries are used to tune nonlinear stress–strain curves not readily achievable with solid materials alone and to change the compliance by two orders of magnitude compared to the constituent material. In this study, four elastomeric TPMS gyroids undergo large deformation compression and tension testing to investigate the impact of the structure's geometry on the mechanical properties. Among all the samples, the modulus at strain ε varies by over one order of magnitude (7.7–293.4 kPa from FEA under compression). These lattices are promising candidates for designing multifunctional systems that can perform multiple tasks simultaneously by leveraging the geometry's large surface area to volume ratio. For example, the architectural functionality of the lattice to bear loads and store mechanical energy along with the larger surface area for energy storage is combined. A compliant double‐gyroid capacitor that can simultaneously achieve three functions is demonstrated: load bearing, energy storage, and sensing.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 18, 2023
- Source ID
- 10.1002/adem.202300629
Entities
People
- Emilie Renee Baker
- Khoi Ly
- Maura R. O’Neill
- Meredith N Silberstein
- Nikola Bosnjak
- Rachel Miller
- Robert F Shepherd
- Sandra Li
Organizations
- Cornell University
- Defense Advanced Research Projects Agency
- National Heart, Lung, and Blood Institute
- National Science Foundation
- Office of Naval Research