An investigation of the low-cycle bending fatigue of spur gears made from AISI 9310 gear steel was completed. Tests were conducted using the single-tooth bending method to achieve crack initiation and propagation. Tests were conducted on spur gears in a fatigue test machine using a dedicated gear test fixture. Test loads were applied at the highest point of single tooth contact. Gear bending stresses for a given testing load were calculated using a linear-elastic finite element model. Test data were accumulated from 1/4 cycle to several thousand cycles depending on the test stress level. The relationship of stress and cycles for crack initiation was found to be semi-logarithmic. The relationship of stress and cycles for crack propagation was found to be linear. For the range of loads investigated, the crack propagation phase is related to the level of load being applied. Very high loads have comparable crack initiation and propagation times whereas lower loads can have a much smaller number of cycles for crack propagation cycles as compared to crack initiation.
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ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 4–7, 2007
Las Vegas, Nevada, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4808-6
PROCEEDINGS PAPER
Investigation of Low-Cycle Bending Fatigue of AISI 9310 Steel Spur Gears Available to Purchase
Robert F. Handschuh,
Robert F. Handschuh
Army Research Laboratory, Cleveland, OH
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Timothy L. Krantz,
Timothy L. Krantz
Army Research Laboratory, Cleveland, OH
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Bradley A. Lerch,
Bradley A. Lerch
NASA Glenn Research Center, Cleveland, OH
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Christopher S. Burke
Christopher S. Burke
QSS Group Incorporated, Cleveland, OH
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Robert F. Handschuh
Army Research Laboratory, Cleveland, OH
Timothy L. Krantz
Army Research Laboratory, Cleveland, OH
Bradley A. Lerch
NASA Glenn Research Center, Cleveland, OH
Christopher S. Burke
QSS Group Incorporated, Cleveland, OH
Paper No:
DETC2007-34095, pp. 871-877; 7 pages
Published Online:
May 20, 2009
Citation
Handschuh, RF, Krantz, TL, Lerch, BA, & Burke, CS. "Investigation of Low-Cycle Bending Fatigue of AISI 9310 Steel Spur Gears." Proceedings of the ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 7: 10th International Power Transmission and Gearing Conference. Las Vegas, Nevada, USA. September 4–7, 2007. pp. 871-877. ASME. https://doi.org/10.1115/DETC2007-34095
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