About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
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Presentation Title |
G-25: Low-cycle Fatigue Modeling of Aluminum Landing Mat Connection System |
Author(s) |
Nolan Hoffman |
On-Site Speaker (Planned) |
Nolan Hoffman |
Abstract Scope |
The low-cycle fatigue-life of an extruded 6061-T6 aluminum aircraft landing mat connection system was analyzed through finite element modeling (FEM) and the multi-stage fatigue (MSF) model. The maximum strain was calculated within the joint to predict the strain-life of the connection system based on material properties found in literature. The FEM and MSF results were then validated with laboratory- and full-scale experimental fatigue-life data. Validation of the modeling results allows for a significant reduction in laboratory- and full-scale testing since the performance of the connection system was predictable. Overall, the modeled fatigue-life of the extruded connection system correlated well with the experimental data. The predicted fatigue-life was within 15% of the laboratory results and 9% of the full-scale results. The modeling effort produced a fatigue-life of approximately 1,300 passes while the physical testing resulted in a life of 1,132 cycles and 1,190 cycles for the laboratory- and full-scale experiments, respectively. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |