Microstructure and 3-D Effects in Fretting Fatigue of Ti Alloys and Ni-Base Superalloys
Abstract
Damage and plastic deformation accumulation in fretting fatigue occurs within a depth of a few crystallographic grains. Therefore, more accurate assumptions concerning length scale, damage volume, and the material model are needed to establish a more solid physical foundation necessary for next generation fretting fatigue damage prediction. Major thrusts include: (1) development and implementation of a 3-D crystal viscoplasticity model for Ti-6A1-4V. (2) realistic 3-D fretting simulations that capture influence of key microstructure features, including distinct phase properties and crystallographic texture, and (3) experimental characterization of fretting experiments to both validate fretting simulation results and identify additional features to incorporate in the crystal viscoplasticity model and fretting simulations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 20, 2006
- Accession Number
- ADA589151
Entities
People
- D. L. Mcdowell
- J. R. Mayeur
- Mei Zhang
- R. W. Neu
- Xinyi Huang
Organizations
- Georgia Tech