Application of Cumulative Fatigue Damage Theory to Farm and Construction Equipment

1964 ◽  
Author(s):  
H. T. Corten
Author(s):  
Yan-Feng Li ◽  
Zhiqiang Lv ◽  
Wei Cai ◽  
Shun-Peng Zhu ◽  
Hong-Zhong Huang

AbstractLoad spectra of aero-engines reflect the process of operating aircrafts as well as the changes of parameters of aircrafts. According to flight hours and speed cycle numbers of the aero-engines, the relationship between load spectra and the fatigue life of main components of the aero-engines is obtained. Based on distribution function and a generalized stress–strength interference model, the cumulative fatigue damage of aero-engines is then calculated. After applying the analysis of load spectra and the cumulative fatigue damage theory, the fatigue life of the first-stage turbine disks of the aero-engines is evaluated by using the


1974 ◽  
Vol 15 (2-3) ◽  
pp. 202-231
Author(s):  
V. K. Murthy ◽  
G. B. Swartz

Author(s):  
E S Palma ◽  
E S dos Santos

An analysis of fatigue damage in a stabilizer bar in the front suspension (McPherson) of a passenger car was performed. A cumulative fatigue damage theory (linear damage rule) together with experimental and analytical techniques of stress analysis are used to determine the fatigue damage imposed on the stabilizer bar, under both laboratory and actual conditions. Finite element models of the stabilizer bars were used to determine the local stresses at critical regions. These stresses were then measured in the laboratory, by using strain gauges bonded on the material. The assessments of fatigue damage of the stabilizer bar under actual conditions were performed with a component mounted on a vehicle, which was driven over different road surfaces and at different velocities. The results of both experiment types are correlated and discussed.


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