fatigue life

fatigue life

[fə′tēg ‚līf]
(mechanics)
The number of applied repeated stress cycles a material can endure before failure.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The Tethered BOP system arrests the motion of the BOP stack above the wellhead, substantially reducing wellhead cyclic stresses and enhancing fatigue life. Depending on the specific riser and wellhead configuration, fatigue life has been improved by as much as 1,000 times the original unmitigated wellhead fatigue.
After the optimization, fatigue analysis was carried out on the entire structure of the pressure vessel to caluclte the fatigue life cycle [2].
This can extend the fatigue life of many parts by 10 to 20 times, enhance metal fatigue life, lower costs as well as minimise downtime.
In this paper, the constant amplitude fatigue test was applied to research the fatigue life of rocklike fractured specimens, and the suitable fatigue life models were selected.
"Effects of System Design on Fatigue Life of Solder Joints in BGA Packages Under Vibration at Random Frequencies"
To prevent self-loosening of bolts and to avoid loss of pretension and increase the fatigue life of a wheel, a thorough study of this problem is necessary.
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. It's remarkably simple, but Verder Pumps is the only one that does it.
[8] observed on the partially PC beams with corroded rebars and found out that the fatigue life of the beams decreases and the rate of the stiffness degradation and the midspan deflection development grows with the corrosion ratio increasing.
To date, many efforts have quantified the fatigue life with numerical and experimental investigations via deterministic analyses, which assures the prediction security for fatigue life by relatively conservative results [5-7].
Kim and Hwang [6] investigated the effect of underfill on the fatigue life of a plastic ball grid array (PBGA) package for space usage under random vibration excitation of the launch.
Due to the large discreteness of concrete and many other influence factors, there is no effective method to predict the fatigue life of concrete, and existing studies usually predict the fatigue life of concrete with the cumulative damage theory.