Date of Award
3-10-2010
Document Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Department
Department of Aeronautics and Astronautics
First Advisor
Anthony N. Palazotto, PhD
Abstract
The development of the research presented here is one in which high velocity relative sliding motion between two bodies in contact has been considered. The experimental results of a VascoMax 300 maraging steel slipper sliding on an AISI 1080 steel rail during a January 2008 sled test mission were considered for the determination of high velocity wear rates. The numerical model, based on a metallographic study of a test slipper, contained all of the physical features present in order to adequately characterize high velocity wear rates. Two-dimensional, plane strain models have been implemented in the explicit finite element code, ABAQUS. Local submodel collisions between the slipper and a 6 μm radius hemispherical asperity were analyzed to determine mechanical and melt wear rates. A simplified damage criterion of maximum Mises stress was used to determine the damaged volume during the slipper and asperity collision. Overall, the model predicts a total wear volume that is approximately 36% of the total wear measured during the metallographic analysis.
AFIT Designator
AFIT-DS-ENY-10-08
DTIC Accession Number
ADA515123
Recommended Citation
Hale, Chad S., "Consideration of Wear Rates at High Velocity" (2010). Theses and Dissertations. 2028.
https://scholar.afit.edu/etd/2028