Failure of high-speed bearing at cyclic impact-sliding contacts
Numerical and experimental analysis
- verfasst von
- Che Wang, Fadi Aldakheel, Chuanwei Zhang, Le Gu, Peter Wriggers
- Abstract
The thermal-induced failure mechanism of the bearing outer-ring guiding-surface is investigated within this work when subjected to cyclic impact and sliding actions. The paper combines numerical simulations and experimental analysis. A high-speed bearing oil interruption experiment is carried out for testing the severe damage of the bearing steel at high-speed impact-sliding contacts. A coupled thermo-elasto-plastic phase-field model is established and validated by experimental results. It then allows, by simulating the multi-physics problem, the predictions of damage propagation and failure for ductile materials at cyclic impact-sliding contacts. To this end, a temperature-dependent isotropic-kinematic hardening model combined with thermal softening, cyclic strain hardening, and damage degradation is employed. The results show that under high-speed cyclic impact-sliding conditions, the damage initiated and accumulated at the contact near-surface is accompanied by instantaneous high temperature and plastic deformation. The failure of bearing is induced by a strong thermal softening effect at high-speed sliding and rapidly propagated under cyclic impact loading. In addition, the impact velocity, impact frequency, and friction coefficient have significant effects on damage initiation and accumulation.
- Organisationseinheit(en)
-
Institut für Baumechanik und Numerische Mechanik
Institut für Kontinuumsmechanik
- Externe Organisation(en)
-
Harbin Institute of Technology
- Typ
- Artikel
- Journal
- International Journal of Mechanical Sciences
- Band
- 253
- ISSN
- 0020-7403
- Publikationsdatum
- 01.09.2023
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Tief- und Ingenieurbau, Werkstoffwissenschaften (insg.), Physik der kondensierten Materie, Werkstoffmechanik, Maschinenbau
- Elektronische Version(en)
-
https://doi.org/10.1016/j.ijmecsci.2023.108410 (Zugang:
Geschlossen)