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Stress Analysis of a Beveled Diamond Anvil

Published online by Cambridge University Press:  21 February 2011

M. S. Bruno  and
K. J. Dunn
M. S. Bruno
Affiliation:
P.O. Box 446, Chevron Oil Field Research Company La Habra, California, 90631
K. J. Dunn
Affiliation:
P.O. Box 446, Chevron Oil Field Research Company La Habra, California, 90631
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Abstract

A finite element stress analysis has been performed on a brilliant cut high pressure diamond anvil. The analysis includes the presence of a metal gasket. A perfectly cohesive interface is assumed to exist between the diamond and metal. Different configurations of the anvil face were studied. The stress distribution resulting from various beveled angles has been analyzed. It has been found that for a flat anvil, with a center normal pressure of about 210 kbar, an octahedral shearing stress of about 90 kbar is present near the center and monotonically increases radially to about 208 kbar along the outer edge. When the anvil surface is beveled, the octahedral shearing stress at the outer corner decreases significantly. The optimum beveled angle necessary to minimize these stresses seems to lie in the neighborhood of 15 degrees. The assumptions made and other stress considerations are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 22: Symposium NY – High Pressure in Science and Technology , 1983 , 239
Copyright
Copyright © Materials Research Society 1984

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References

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