Abstract
Rolling contact fatigue (RCF) tests were conducted on rolling bearings, with holes micro-drilled at the mid-point of the tracks. In all of the RCF tests, fatigue cracks initiated at the edge, near the base of the drilled holes, later propagating by shear-mode. Even in the un-flaked specimens tested up to N = 2×10 8 cycles, short fatigue cracks were discovered at the edges. Using the stress intensity factor (SIF) range, as calculated for the initial defect size, fatigue life data were uniformly gathered inside a narrow band, irrespective of the diameters and depths of the holes. In addition, it was determined that the crack-size dependency of the threshold SIF range, well-known for Mode I fatigue cracks, also exists for Mode II fatigue cracks, as produced after rolling contact. The values of the threshold SIF range obtained by the RCF tests were in good agreement with those obtained in the torsional fatigue tests under static compression.
| Original language | English |
|---|---|
| Pages (from-to) | 460-467 |
| Number of pages | 8 |
| Journal | Procedia Structural Integrity |
| Volume | 7 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Mechanics of Materials
- Civil and Structural Engineering
- Materials Science(all)
Cite this
Quantitative Evaluation of the Flaking Strength of Rolling Bearings with Small Defects. / Matsunaga, Hisao; Hashimoto, Sho; Komata, Hiroki.
In: Procedia Structural Integrity, Vol. 7, 01.01.2017, p. 460-467.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantitative Evaluation of the Flaking Strength of Rolling Bearings with Small Defects
AU - Matsunaga, Hisao
AU - Hashimoto, Sho
AU - Komata, Hiroki
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Rolling contact fatigue (RCF) tests were conducted on rolling bearings, with holes micro-drilled at the mid-point of the tracks. In all of the RCF tests, fatigue cracks initiated at the edge, near the base of the drilled holes, later propagating by shear-mode. Even in the un-flaked specimens tested up to N = 2×10 8 cycles, short fatigue cracks were discovered at the edges. Using the stress intensity factor (SIF) range, as calculated for the initial defect size, fatigue life data were uniformly gathered inside a narrow band, irrespective of the diameters and depths of the holes. In addition, it was determined that the crack-size dependency of the threshold SIF range, well-known for Mode I fatigue cracks, also exists for Mode II fatigue cracks, as produced after rolling contact. The values of the threshold SIF range obtained by the RCF tests were in good agreement with those obtained in the torsional fatigue tests under static compression.
AB - Rolling contact fatigue (RCF) tests were conducted on rolling bearings, with holes micro-drilled at the mid-point of the tracks. In all of the RCF tests, fatigue cracks initiated at the edge, near the base of the drilled holes, later propagating by shear-mode. Even in the un-flaked specimens tested up to N = 2×10 8 cycles, short fatigue cracks were discovered at the edges. Using the stress intensity factor (SIF) range, as calculated for the initial defect size, fatigue life data were uniformly gathered inside a narrow band, irrespective of the diameters and depths of the holes. In addition, it was determined that the crack-size dependency of the threshold SIF range, well-known for Mode I fatigue cracks, also exists for Mode II fatigue cracks, as produced after rolling contact. The values of the threshold SIF range obtained by the RCF tests were in good agreement with those obtained in the torsional fatigue tests under static compression.
UR - http://www.scopus.com/inward/record.url?scp=85065957137&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85065957137&partnerID=8YFLogxK
U2 - 10.1016/j.prostr.2017.11.113
DO - 10.1016/j.prostr.2017.11.113
M3 - Article
AN - SCOPUS:85065957137
VL - 7
SP - 460
EP - 467
JO - Procedia Structural Integrity
JF - Procedia Structural Integrity
SN - 2452-3216
ER -