fatigue life

fatigue life

[fə′tēg ‚līf]
(mechanics)
The number of applied repeated stress cycles a material can endure before failure.

fatigue life

The number of cycles of loading of a specified character that a given specimen of material can sustain before failure occurs; a measure of the useful life of the material.
References in periodicals archive ?
The force is absorbed into the hose's reinforcing fibers, therefore since the Verderflex hose has more fibers, it can spread that load out over a greater number of elements, thus reducing the stress per fiber and extending fatigue life.
The fatigue life of solder joints before and after aging was studied in both experiments.
6 of the company's fatigue life analysis softare is a computer simulation that models the development of damage in an elastomeric part operating under realistic service conditions.
UIT considered a novel and promising procedures designed for fatigue life enhancement of connected components and assembled structures [2].
The topics include an experimental study of surrogate nuclear fuel rods under reversed cyclic bending, fatigue studies on impacted and unimpacted carbon-fiber reinforced plastic laminates, a data processing procedure for predicting the fatigue life of spot-welded joints using a structural stress method, analyzing non-proportional multi-axial fatigue test data of various aluminum alloys using a new damage parameter, and practical and technical challenges of the exhaust system fatigue life assessment process at elevated temperature.
turbine blades) require good durability when subjected to complex loading conditions, which is detrimental to the components, fatigue life evaluation must be done during the components' design process.
For curve fitting, a maximum likelihood estimator according ASTM 739 was applied [35], assuming that: All fatigue life data pertain to a random sample and are independent, there are no run-outs, the S-N curve can be described by a linear model, a two-parameter log-normal distribution describes the fatigue life and the variance is constant.
To achieve this, ball screws with a long fatigue life are essential.
Elgiloy has high strength, ductility, and fatigue life, ideal for stiffener bands and spring energized seals.
Therefore, the prediction of fatigue life has an outstanding importance that must be considered during the design step of a mechanical component [1].
Fatigue failure of the rubber material is one of the main forms of failure cause thrust rod; the thrust rod service life depends primarily on the fatigue life of the rubber ball joints [10-14].