A method for estimating a component’s design survivability by incorporating finite element analysis and probabilistic material properties was developed. The method evaluates design parameters through direct comparisons of component survivability expressed in terms of Weibull parameters. The analysis was applied to a rotating disk with mounting bolt holes. The highest probability of failure occurred at, or near, the maximum shear stress region of the bolt holes. Distribution of material failure as a function of Weibull slope affects the probability of survival. Where Weibull parameters are unknown for a rotating disk, it may be permissible to assume Weibull parameters, as well as the stress-life exponent, in order to determine the qualitative effect of disk speed on the probability of survival.
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December 1993
Research Papers
Incorporating Finite Element Analysis into Component Life and Reliability
R. August,
R. August
Sverdrup Technology, Inc., Lewis Research Center Group, Brook Park, OH 44142
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E. V. Zaretsky
E. V. Zaretsky
National Aeronautics and Space Administration, Lewis Research Center, Cleveland, OH 44135
Search for other works by this author on:
R. August
Sverdrup Technology, Inc., Lewis Research Center Group, Brook Park, OH 44142
E. V. Zaretsky
National Aeronautics and Space Administration, Lewis Research Center, Cleveland, OH 44135
J. Mech. Des. Dec 1993, 115(4): 706-710 (5 pages)
Published Online: December 1, 1993
Article history
Received:
March 1, 1992
Online:
June 2, 2008
Citation
August, R., and Zaretsky, E. V. (December 1, 1993). "Incorporating Finite Element Analysis into Component Life and Reliability." ASME. J. Mech. Des. December 1993; 115(4): 706–710. https://doi.org/10.1115/1.2919258
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