Keywords and Phrases
Hollow; Spheres; Weibull; Reliability; Strength
"Ceramic hollow spheres have long been an area of interest in the laboratory, but until recently were not available at the commercial level. Ceramic hollow spheres have many applications as both a component in composite materials and as a material itself. Because of the renewed interest in these materials, the relative reliability must be known and understood before the design of composite materials containing hollow spheres can be developed.
Due to the lack of an adequate strength formula for the diametral compression of ceramic hollow spheres, Weibull analysis was applied to the individual hollow sphere failure loads. It was found that failure initiated at the inner surface directly beneath the applied loads. Sorting the failure load data by diameter gave an accurate indication of the relative reliability of the hollow spheres. Long tails down to low failure loads indicated that the hollow spheres had relatively unreliable failure behavior. This was attributed to various defects in the sphere microstructure. Weibull modulus for these thick walled ceramic spheres was low, between 3 and 7"--Abstract, page iii.
Moore, Robert E., 1930-2003
Ownby, P. D.
Oglesby, David B.
Materials Science and Engineering
M.S. in Ceramic Engineering
University of Missouri--Rolla
x, 54 pages
© 1991 Brian Keith Osborne, All rights reserved.
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Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://merlin.lib.umsystem.edu/record=b2440068~S5
Osborne, Brian Keith, "Reliability of a flint clay hollow sphere as determined by Weibull statistical analysis of failure loads" (1991). Masters Theses. 1015.
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