Results in Engineering (Sep 2024)

Modeling thermo-mechanical fatigue for rolling die under continuous casting process

  • Mesay Alemu Tolcha,
  • Hirpa Gelgele Lemu

DOI
https://doi.org/10.1016/j.rineng.2024.102577
Journal volume & issue
Vol. 23
p. 102577

Abstract

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In the continuous casting process, the rolling die is exposed to non-steady stress conditions that can initiate thermo-mechanical fatigue damage. Understanding the rolling die failure mechanism is essential in metal-forming industries. Thermo-mechanical fatigue damage mechanism (crack growth) is governed by highly localized stresses in the crack tip region. This paper presents analytical models to determine thermo-mechanical fatigue failure mechanism based on the elastoplastic fracture mechanics and continuum damage mechanics. The model includes new proposed analytical equations for low-cyclic fatigue crack propagation. To verify the analytical models, experimental data and finite element simulation are considered. Results show good agreement with experimental data and finite element simulation.

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