Analytical and experimental evaluation of biaxial contact stressContact stress analysis was conducted for ceramic-metal and ceramic-ceramic interfaces using a finite element model. Ceramics investigated included NC-132 hot-pressed silicon nitride, NC-350 reaction-bonded silicon nitride, Hexaloy SA SiC, and RBN104 reaction-bonded silicon nitride. The results are shown to be well correlated with closed-form solution both for normal and normal-tangential loading. The latter load condition is found to be especially critical for ceramic materials due to the presence of a high tensile stress at the trailing edge of the ceramic surface contact zone. It is shown that during sliding contact or biaxial loading, the magnitude of this tensile stress increases with the coefficient of friction.
Document ID
19820037206
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Richerson, D. W. (Garrett Turbine Engine Co. Phoenix, AZ, United States)
Finger, D. G. (Garrett Turbine Engine Co. Phoenix, AZ, United States)
Wimmer, J. M. (Garrett Turbine Engine Co. Phoenix, AZ, United States)
Date Acquired
August 10, 2013
Publication Date
July 1, 1981
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: International Symposium on Fracture Mechanics of Ceramics