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 |
Insight into Compressive Behaviour of Schwarz-P Lattices Fabricated by Material Extrusion |
Author(s) |
Piyapat Jameekornkul, Ajit Panesar |
On-Site Speaker (Planned) |
Ajit Panesar |
Abstract Scope |
Lattice structures are increasingly being chosen for lightweight applications due to their high strength-to-weight ratio and energy absorption capability. This work investigates the mechanical performance of the Schwarz-P (SP) lattices with a range of unit-cell sizes and densities. The SP lattices were fabricated using material extrusion with ASA (industrial grade) material and tested along different orientations to build plate. A new shear test method adapted from the standard rail shear method was used for reporting shear properties. The Digital Image Correlation (DIC) was utilised to measure the local strain and deformation mechanism. The preliminary results indicate that stiffness and strength were related to densities abiding the Ashby-Gibson model in well-controlled tight bands which will help inform design decisions for future adoption. Further experiments will be conducted to improve the accuracy of the results, gain better understanding of graded lattices and provide insights on possible use of fibre-reinforcement in lattices. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |