Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
798516 | Journal of the Mechanics and Physics of Solids | 2006 | 28 Pages |
Abstract
Plastic deformation at the scale of microstructure plays an important role in fretting fatigue failure of metals under cyclic loading. In this study, crystal viscoplasticity theory with a planar triple slip idealization is employed to represent crystallographic plasticity in two-dimensional fretting analyses of Ti–6Al–4V. Subsurface deformation maps, fretting maps, and shakedown maps are constructed based on application of J2 plasticity theory for the polycrystalline substrate. Comparisons are then made with polycrystal viscoplasticity simulations, the latter suggesting that plastic ratchetting plays a significant role in the fretting fatigue process.
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Authors
C.-H. Goh, D.L. McDowell, R.W. Neu,