skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effect of interfacial roughness parameters on the fiber pushout behavior of a model composite

Journal Article · · Journal of the American Ceramic Society; (United States)
 [1];  [2]; ;  [3]
  1. U.E.S. Inc., Dayton, OH (United States)
  2. Wright State Univ., Dayton, OH (United States). Dept. of Engineering
  3. Materials Directorate, Wright Patterson Air Force Base, OH (United States)

The effect of interfacial roughness on the frictional sliding in composites has been studied using fiber pushout and pushback tests on a model composite of Plexiglas rods in an epoxy matrix. Different extents of roughness were introduced on the Plexiglas rods and the resulting roughness profiles measured. The roughness profiles were characterized using six different roughness parameters. An attempt was made to find a correlation between the sliding resistance and the selected roughness parameters. A parameter defined as the maximum coefficient in the Fourier transform of the roughness profile was found to yield the best correlation. If the roughness introduced is periodic, then the pushout traces exhibit periodic dips, but the magnitude of this periodic dip is significantly smaller than the seating drop obtained from pushback tests.

OSTI ID:
6870159
Journal Information:
Journal of the American Ceramic Society; (United States), Vol. 77:12; ISSN 0002-7820
Country of Publication:
United States
Language:
English