Details
| Original language | English |
|---|---|
| Article number | 109215 |
| Number of pages | 16 |
| Journal | International Journal of Mechanical Sciences |
| Volume | 273 |
| Early online date | 21 Mar 2024 |
| Publication status | Published - 1 Jul 2024 |
Abstract
Multiple failure modes of cyclic impact-sliding contacts, including brittle fracture, shear failure, and low-cycle fatigue, are investigated within the work. For this regard, a general thermo-elasto-plastic phase-field model is developed and validated that considers brittle-ductile failure mode transitions and fatigue degradation effects. And a temperature-dependent cyclic constitutive relation, combined with thermal softening, damage degradation, strain hardening, and fatigue degradation, is introduced to explain the cyclic thermo-elasto-plastic behavior of bearing steels. Combining the dynamic point/line contact model and the general phase-field model, the damage evolution and failure mode transitions of typical bearing parts under impact-sliding contacts are studied. The results indicate that cage-pockets and balls undergo low-cycle fatigue at low impact-sliding velocities, while guiding surfaces of the cage and ring are subjected to shear failure during cyclic high-speed sliding. Moreover, it is revealed that the abnormal phenomenon of more severe damage for the harder material than the softer material is due to multiple effects of strong thermal softening, damage degradation, and fatigue degradation.
Keywords
- Abnormal wear, Cyclic impact-sliding contacts, Ductile failure, Fatigue degradation
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Materials Science(all)
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Aerospace Engineering
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Mathematics(all)
- Applied Mathematics
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In: International Journal of Mechanical Sciences, Vol. 273, 109215, 01.07.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A general phase-field model for simulating impact-sliding contact failure
AU - Wang, Che
AU - Zheng, Dezhi
AU - Zhang, Chuanwei
AU - Gu, Le
AU - Shu, Kun
AU - Aldakheel, Fadi
AU - Wriggers, Peter
N1 - Funding Information: This work is supported by the Key Basic Research Project (No. J2019-IV-0004-0071 ), the National Natural Science Foundation of China (No. 52175164 , 52205191 ). The author F. Aldakheel gratefully acknowledges support for this research by the “ German Research Foundation ” (DFG) in the International Research Training Group (IRTG) 2657 program (No. 433082294 ). C. Wang would like to thank China Scholarship Council (No. 202006120162 ) for the financial support of studying aboard.
PY - 2024/7/1
Y1 - 2024/7/1
N2 - Multiple failure modes of cyclic impact-sliding contacts, including brittle fracture, shear failure, and low-cycle fatigue, are investigated within the work. For this regard, a general thermo-elasto-plastic phase-field model is developed and validated that considers brittle-ductile failure mode transitions and fatigue degradation effects. And a temperature-dependent cyclic constitutive relation, combined with thermal softening, damage degradation, strain hardening, and fatigue degradation, is introduced to explain the cyclic thermo-elasto-plastic behavior of bearing steels. Combining the dynamic point/line contact model and the general phase-field model, the damage evolution and failure mode transitions of typical bearing parts under impact-sliding contacts are studied. The results indicate that cage-pockets and balls undergo low-cycle fatigue at low impact-sliding velocities, while guiding surfaces of the cage and ring are subjected to shear failure during cyclic high-speed sliding. Moreover, it is revealed that the abnormal phenomenon of more severe damage for the harder material than the softer material is due to multiple effects of strong thermal softening, damage degradation, and fatigue degradation.
AB - Multiple failure modes of cyclic impact-sliding contacts, including brittle fracture, shear failure, and low-cycle fatigue, are investigated within the work. For this regard, a general thermo-elasto-plastic phase-field model is developed and validated that considers brittle-ductile failure mode transitions and fatigue degradation effects. And a temperature-dependent cyclic constitutive relation, combined with thermal softening, damage degradation, strain hardening, and fatigue degradation, is introduced to explain the cyclic thermo-elasto-plastic behavior of bearing steels. Combining the dynamic point/line contact model and the general phase-field model, the damage evolution and failure mode transitions of typical bearing parts under impact-sliding contacts are studied. The results indicate that cage-pockets and balls undergo low-cycle fatigue at low impact-sliding velocities, while guiding surfaces of the cage and ring are subjected to shear failure during cyclic high-speed sliding. Moreover, it is revealed that the abnormal phenomenon of more severe damage for the harder material than the softer material is due to multiple effects of strong thermal softening, damage degradation, and fatigue degradation.
KW - Abnormal wear
KW - Cyclic impact-sliding contacts
KW - Ductile failure
KW - Fatigue degradation
UR - http://www.scopus.com/inward/record.url?scp=85188905529&partnerID=8YFLogxK
U2 - 10.1016/j.ijmecsci.2024.109215
DO - 10.1016/j.ijmecsci.2024.109215
M3 - Article
AN - SCOPUS:85188905529
VL - 273
JO - International Journal of Mechanical Sciences
JF - International Journal of Mechanical Sciences
SN - 0020-7403
M1 - 109215
ER -