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)
|
Presentation Title |
Load Alignment Ratio – A Novel Lattice Evaluation and Optimization Metric |
Author(s) |
Joseph Bartolai, Simon W Miller, Joseph W Fisher, Michael A Yukish |
On-Site Speaker (Planned) |
Joseph Bartolai |
Abstract Scope |
Comparisons between lattice structures often requires experimental data, finite element analyses, or solution of closed-form bending equations. Designers are often required to make decisions only informed by limited and disparate experimental data or analyses available in published literature. Equivalent evaluation of strut-based and equation-based lattice structures is particularly difficult. This work introduces the Load Alignment Ratio (LAR), a lattice structure metric that compares the local alignment of material within a lattice structure to an externally applied load. This scalar metric allows fast “apples-to-apples” comparison of lattice structures appropriate for a particular application. LAR scores of select strut-based and equation-based lattices are compared to their associated mechanical properties. Application of the LAR demonstrates the optimization of a lattice structure for a single loading condition. Performance improvements in lattices with LAR-informed adjustments are evaluated and compared using mechanical testing. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |