| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
Characterization and Modelling of Triply Periodic Minimum Surface (TPMS) Lattice Structures for Energy Absorption in Automotive Applications |
| Author(s) |
Nic Creswell, Ali Ameri, Jianshen Wang, Hongxu Wang, Paul Hazell, Juan P. Escobedo-Diaz |
| On-Site Speaker (Planned) |
Juan P. Escobedo-Diaz |
| Abstract Scope |
The performance of triply periodic minimum surface (TPMS) lattice structures was evaluated for use as energy absorbers in automobile crash structures. Schoen’s Gyroid TPMS lattice structures were manufactured out of eSUN ePA-CF carbon fiber reinforced nylon using fusion deposition modelling (FDM) 3D printing. Compressive and energy absorption performance was quantified experimentally using quasi-static and dynamic impact testing assisted by digital image correlation (DIC). Test samples were replicated at different gyroid cell size and continuous surface thickness combinations. Ramp samples with gradual change in wall thickness were also evaluated. Finite element analysis (FEA) was employed to help extrapolate results to different materials and geometries. Results were compared to published data from other lattice structures to assess relative performance, and analysed to develop a recommended gyroid TPMS geometry. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Modeling and Simulation, Additive Manufacturing |