About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
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Presentation Title |
A Two-surface Modeling to Improve Creep-fatigue Predictions in Ni-based Single-crystal Superalloys |
Author(s) |
Jean-Briac le Graverend |
On-Site Speaker (Planned) |
Jean-Briac le Graverend |
Abstract Scope |
Two-surface modeling was historically developed for fatigue loading to memorize the prior maximum plastic strain range. Chaboche, Ohno, and McDowell are amongst those who pioneered the two-surface modeling under the umbrella of bounding-surface theory. In parallel, a vast amount of work has been performed to better predict creep-fatigue interactions and complex modeling approaches have been proposed. Since fatigue and creep do not have the same deformation mechanisms, what is hereby proposed is to formulate a two-surface model with each of the surfaces responsible for a loading type and coupled via hardening variables. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Temperature Materials, Modeling and Simulation, Mechanical Properties |