About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale VIII
|
| Presentation Title |
Silica Glass Nanolattices with Superior Instability Resistance via Free-From Shape Optimization |
| Author(s) |
Mirhan Özdemir, Jens Bauer |
| On-Site Speaker (Planned) |
Mirhan Özdemir |
| Abstract Scope |
Nanolattice metamaterials have demonstrated extreme mechanical strength by leveraging their small-size building blocks to harness mechanical size effects in their constituent solids. However, the increased material strength comes at the cost of dramatically increased susceptibility to premature buckling instability. With decreasing density, this quickly negates the strength gains of the supposed lightweight stretching-dominated truss-lattices, typically limiting their full performance to structures with solid material volume fractions well above 10%. Here, we present a free-form shape optimization framework to dramatically increase the buckling resistance of lightweight truss-lattice metamaterials without sacrificing elastic strength and stiffness, nor introducing significant anisotropy and fabrication complexity. Experimental validation with two-photon polymerization 3D-printed, silica-glass nanolattices with and without the optimized designs are discussed. Our work introduces a novel general design strategy for overcoming buckling limitations in metamaterial architectures from nanolattices to advanced engineering applications on the macroscale. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nanotechnology, Modeling and Simulation |