About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Agile Additive Manufacturing by Employing Breakthrough Functionalities
|
Presentation Title |
The Design and Mechanical Performance of Interlocking Metamaterials |
Author(s) |
Philip Noell, Benjamin Young, Ophelia Bolmin, Nathan Brown, Brad Boyce |
On-Site Speaker (Planned) |
Philip Noell |
Abstract Scope |
Joints are ubiquitous but remain a critical weakness for many designs. We present a newly developed class of joining technology, enabled by additive manufacturing, that provides a combination of properties unmatched in our existing palette of joining options. Interlocking metasurfaces (ILMs) are a new structural joining technology consisting of autogenous latching features. These metamaterials are capable of creating non-permanent joints that are an alternative to fasteners, welds, or adhesives. We discuss methods for designing ILMs unit cells using advanced computational methods, e.g. genetic algorithms, and the mechanical performance of ILMs in a variety of environments. Synergistic strengthening and frictional interactions between unit cells provide dampening of vibration, increased fracture toughness compared to the base material, and significant increases in strength compared to simple “snap-fit” joints. Functional materials enable the joint to respond to specific environments. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Joining, Mechanical Properties |