| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
|
| Presentation Title |
Influence of Functional-Gradation on the Energy Absorption Performance of Triply Periodic Minimal Surface (TPMS) Lattice Structures |
| Author(s) |
Yehan Rajapakse, Juan P. Escobedo-Diaz, Jianshen Wang, Damith Mohotti, Hongxu Wang, Paul Hazell |
| On-Site Speaker (Planned) |
Juan P. Escobedo-Diaz |
| Abstract Scope |
Triply Periodic Minimal Surface (TPMS) lattice structures are considered as leading candidates for protective structures owing to their excellent energy absorption properties and unique geometry with a greater surface area. This study investigates the influence of different functional grading configurations achieved through density variation, on the energy absorption performance of TPMS structures under quasi-static compression. Gyroid and Diamond TPMS configurations with 5 different density gradation designs namely; uniformly graded (UG), positive radially graded (PRG), negative radially graded (NRG), positive longitudinally graded (PLG) and negative longitudinally graded (NLG), were additively manufactured using the impact-resistant material: acrylonitrile butadiene styrene (ABS) employing fused deposition modelling (FDM) technique. Each gradation configuration was evaluated comparing the force-displacement response and corresponding energy absorption properties including peak crushing force (PCF), mean crushing force (MCF), crush force efficiency (CFE), total energy absorption (EA) and specific energy absorption (SEA). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |