Using a reverse life plot for estimating fatigue endurance/limit
Source abstract
Abstract
Abstract This short review paper describes the use of a reverse life plot, σ a versus 1/N f , for estimating a fatigue endurance/limit, σ FL. The method is applicable for different alloy-environment systems and load R-ratios. Due to inherent scatter in the fatigue data approaching fatigue limit, a ‘staircase’ method is often utilized that requires relatively large number of specimens (around 15–30) to be tested just for fatigue endurance/limit determination alone. The proposed method uses only high-cycle-fatigue (HCF) S-N data. The estimated fatigue endurance/limit is verified against the data from staircase method for 7000 Al alloy in air and corrosive 0.5 % NaCl solution environment. The comparison with the staircase method shows fairly good agreement. An additional example shows how this method estimates endurance limits for 4140 steels tested in three environments: dry air, air with 93 % RH, and aerated 3 % NaCl solution.
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Research context
OpenAlex topics: Transport Systems and Technology · Vehicle emissions and performance
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Mechanical and Aerospace Engineering , Western Michigan University , Kalamazoo , MI 49008 , USA
Technical Data Analysis Inc. , Falls Church , VA 22043 , USA
EMEA Product Development BCI , Stellantis , Orbassano , Italy
Funding
None declared
References (12)
Show source-provided references
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