The role of microstructure is quite significant in fretting because the scale of plastic strain localization near the surface is on the order of key microstructure features. A dual-phase Ti-6Al-4V alloy that tends to be susceptible to fretting is considered as a model material. Fretting is simulated using a two-dimensional finite element analysis. A crystal plasticity theory with a two-dimensional planar triple slip idealization is employed to represent the hexagonal close packed structure of the phase of Ti. Modifications of the slip system strengths enable multiple phases to be considered. In this study, the effects of grain orientation distribution, grain size and geometry, as well as the phase distribution and their arrangement, are considered in simulations. Implications of the results are discussed.
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e-mail: rick.neu@me.gatech.edu
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October 2006
Research Papers
Influence of Microstructure in Partial-Slip Fretting Contacts Based Upon Two-Dimensional Crystal Plasticity Simulations
C.-H. Goh,
C.-H. Goh
The George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405
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D. L. McDowell,
D. L. McDowell
The George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405
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R. W. Neu
R. W. Neu
The George W. Woodruff School of Mechanical Engineering,
e-mail: rick.neu@me.gatech.edu
Georgia Institute of Technology
, Atlanta, GA 30332-0405
Search for other works by this author on:
C.-H. Goh
The George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405
D. L. McDowell
The George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405
R. W. Neu
The George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405e-mail: rick.neu@me.gatech.edu
J. Tribol. Oct 2006, 128(4): 735-744 (10 pages)
Published Online: June 12, 2006
Article history
Received:
March 14, 2006
Revised:
June 12, 2006
Citation
Goh, C., McDowell, D. L., and Neu, R. W. (June 12, 2006). "Influence of Microstructure in Partial-Slip Fretting Contacts Based Upon Two-Dimensional Crystal Plasticity Simulations." ASME. J. Tribol. October 2006; 128(4): 735–744. https://doi.org/10.1115/1.2345414
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