About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
| Presentation Title |
Integrated Numerical Framework for Fatigue Life Enhancement in Additively Manufactured Lattice Structures |
| Author(s) |
Mirsat Akkus, Zana Eren, Zahit Mecitoglu |
| On-Site Speaker (Planned) |
Zana Eren |
| Abstract Scope |
Additively manufactured (AM) lattice structures are increasingly adopted in aerospace applications for weight reduction, yet their fatigue durability remains a critical concern. This study presents an integrated computer-aided engineering (CAE) workflow combining validated static finite element analysis, fatigue life prediction, and parametric design optimization to address this challenge. The approach is applied to lattice structures in satellite and UAV wing applications using AlSi10Mg. Fatigue behavior is evaluated using both stress-based (S–N) and strain-based (ε–N) methods, covering high-cycle and low-cycle regimes. Finite element stress–strain outputs inform fatigue analysis, which is coupled with multi-objective geometry optimization to improve fatigue life. The workflow yields lattice topologies tailored to fatigue constraints while ensuring manufacturability via powder bed fusion. This study demonstrates a comprehensive CAE framework for fatigue-driven design of AM aerospace alloys, offering a novel route for developing high-performance cellular components. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Modeling and Simulation, Mechanical Properties |