An analytical approach to determine conventional S−N curves from accelerated-fatigue data |
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Authors: | C. Basavaraju C. K. Lim |
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Affiliation: | 1. Duke Power Co., 28242, Charlotte, NC 2. IBM Corporation, 13760, Endicott, NY
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Abstract: | This paper describes an analytical method of obtaining conventional S?N curves from the accelerated-fatigue tests, namely the generalized Prot accelerated-fatigue-testing technique in which the stress amplitude increases linearly with respect to cycle. Miner's cumulative-damage theory was applied and an expression for the sum of a series of natural numbers raised to a certain nonintegral power was developed to achieve this. The agreement between analytical prediction and experimental verification is quite reasonable. |
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