Incorporating Finite Element Analysis into Component Life and Reliability | Zendy

Richard August | Zendy; E. V. Zaretsky | Zendy

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Incorporating Finite Element Analysis into Component Life and Reliability

Author(s) -

Richard August,

E. V. Zaretsky

Publication year - 1993

Publication title -

journal of mechanical design

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.911

H-Index - 120

eISSN - 1528-9001

pISSN - 1050-0472

DOI - 10.1115/1.2919258

Subject(s) - weibull distribution , survivability , finite element method , structural engineering , reliability (semiconductor) , component (thermodynamics) , engineering , reliability engineering , shape parameter , probabilistic logic , stress (linguistics) , weibull modulus , probability distribution , mathematics , statistics , power (physics) , physics , linguistics , philosophy , quantum mechanics , thermodynamics

A method for calculating 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 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 disk speed where the probability of survival is highest.

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