Extraction and testing of miniature compression specimens from localized regions of components affected by rolling contact fatigue loading can provide significant insight into material degradation. Current ASTM standards for compression testing of cylindrical specimens become too stringent and difficult to achieve when specimen size is reduced to around 1 mm in diameter. The tolerances for surface flatness, parallelism of the loading surfaces, and the perpendicularity between the axis and the loading surfaces play crucial roles in the resulting stress-strain curves under uniaxial compression loading. In this manuscript, a systematic study is performed to quantify the influence of the above geometric parameters on the stress-strain response. Based on the analysis, the allowable geometric tolerances of miniature cylindrical specimens for a valid compression tests are recommended. The analysis results are validated and the usefulness of the method is demonstrated on miniature specimens extracted from the rolling contact fatigue affected regions of high strength M50 bearing balls. The yield stress within the rolling contact fatigue affected region is shown to increase by over 12%.
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April 2014
Research-Article
Extraction and Testing of Miniature Compression Specimens From Bearing Balls Subjected to Rolling Contact Fatigue
B. D. Allison,
B. D. Allison
Department of Mechanical and
Aerospace Engineering,
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
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G. Subhash,
G. Subhash
1
Department of Mechanical and
Aerospace Engineering,
e-mail: subhash@ufl.edu
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
e-mail: subhash@ufl.edu
1Corresponding author.
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N. K. Arakere,
N. K. Arakere
Department of Mechanical and
Aerospace Engineering,
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
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H. Chin,
H. Chin
Pratt & Whitney
,400 Main Street
,East Hartford, CT 06108
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D. Haluck,
D. Haluck
Pratt & Whitney
,400 Main Street
,East Hartford, CT 06108
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H. Yamaguchi
H. Yamaguchi
Department of Mechanical and
Aerospace Engineering,
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
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B. D. Allison
Department of Mechanical and
Aerospace Engineering,
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
G. Subhash
Department of Mechanical and
Aerospace Engineering,
e-mail: subhash@ufl.edu
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
e-mail: subhash@ufl.edu
N. K. Arakere
Department of Mechanical and
Aerospace Engineering,
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
H. Chin
Pratt & Whitney
,400 Main Street
,East Hartford, CT 06108
D. Haluck
Pratt & Whitney
,400 Main Street
,East Hartford, CT 06108
H. Yamaguchi
Department of Mechanical and
Aerospace Engineering,
Aerospace Engineering,
University of Florida
,Gainesville, FL 32611
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received April 7, 2013; final manuscript received December 15, 2013; published online February 5, 2014. Assoc. Editor: Xiaolan Ai.
J. Tribol. Apr 2014, 136(2): 021103 (7 pages)
Published Online: February 5, 2014
Article history
Received:
April 7, 2013
Revision Received:
December 15, 2013
Citation
Allison, B. D., Subhash, G., Arakere, N. K., Chin, H., Haluck, D., and Yamaguchi, H. (February 5, 2014). "Extraction and Testing of Miniature Compression Specimens From Bearing Balls Subjected to Rolling Contact Fatigue." ASME. J. Tribol. April 2014; 136(2): 021103. https://doi.org/10.1115/1.4026442
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