About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Exploration and Evaluation of Offset Equation-Based Lattices |
Author(s) |
Joseph Bartolai, Thomas L Jones, Simon W Miller, Joseph W Fisher, Michael A Yukish |
On-Site Speaker (Planned) |
Joseph Bartolai |
Abstract Scope |
Advances in Additive Manufacturing and Computer Aided Design have made equation-based lattice structures readily accessible for design inclusion. These equation-based lattices are typically closed-form approximations of Triply Periodic Minimal Surfaces. Lattice geometry is defined by a single level set (the isosurface of constant value within the domain) with equal offsets to change lattice volume fraction. This work introduces the concept of using independent level set values for a single equation to define multiple distinct lattice structures, each with unique inherent mechanical properties. Additionally, by changing the level set value through the equation’s domain, one lattice can smoothly transform into another. This allows for smooth changes in mechanical properties within a lattice structure while maintaining a constant volume fraction. Mechanical property between the distinct lattices, as well as within the variable structures, are demonstrated using quasi-static compression. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |