Year: 2025
Type: article
Abstract: High computational requirements often limit the feasibility of fatigue simulations for complex structures or predictions over long lifetimes. This paper introduces an innovative and efficient methodology for modeling fatigue without the excessive processing times typically required for cycle-by-cycle simulations. By introducing a coordinate transformation from the parameter of time to the cycle number, a significant reduction in computational costs is achieved. Furthermore, this strategy enables the efficient construction of force-displacement hysteresis loops and facilitates the investigation of low-cycle fatigue, high-cycle fatigue, and the endurance limit. The model is based on an extended Hamilton principle of stationary action and is implemented using the Neighbored Element Method. The properties of this strategy are demonstrated through various boundary value problems, demonstrating its robustness and effectiveness.
Source: Computational Mechanics
Authors: Hüray Ilayda Kök, Philipp Junker
Institution: Leibniz University Hannover
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,990
Funder: Deutsche Forschungsgemeinschaft
OpenAlex ID: W4411740357