A high-cycle fatigue life model for variable amplitude multiaxial loading

2008 ◽  
Vol 31 (1) ◽  
pp. 67-75 ◽  
Author(s):  
M. JABBADO ◽  
M. H. MAITOURNAM
Keyword(s):  
Fatigue Life ◽  
High Cycle Fatigue ◽  
Multiaxial Loading ◽  
Cycle Fatigue ◽  
Variable Amplitude ◽  
Life Model

scholarly journals Influence of Selected Multiaxial Stress Paths on Fatigue Estimation under Variable Amplitude Loading

2021 ◽  
Author(s):  
Jan Papuga ◽  
Matúš Margetin ◽  
Vladimír Chmelko
Keyword(s):  
Experimental Data ◽  
Fatigue Life ◽  
High Cycle Fatigue ◽  
Multiaxial Loading ◽  
Cycle Fatigue ◽  
Variable Amplitude ◽  
Life Estimation ◽  
Fatigue Life Estimation ◽  
Shift Effect ◽  
Fatigue Estimation

The paper discusses solutions used for estimating fatigue life under variable amplitude multiaxial loading in the high-cycle fatigue domain. Various concurring effects are treated, and their proposed solutions are commented upon. The focus is on the categories of the phase shift effect and of cycle counting. It is concluded that the available experimental data are not sufficient to substantiate a clear decision to follow a definite algorithm. An example of own new experimental data is provided, and the fatigue life estimation run to highlight some more points open for discussion.

scholarly journals Comparative analysis of fatigue life calculation methods of C45 steel in conditions of variable amplitude loads in the low- and high-cycle fatigue ranges

2012 ◽  
Vol 19 (4) ◽  
pp. 23-30 ◽  
Author(s):  
Bogdan Ligaj ◽  
Grzegorz Szala
Keyword(s):  
Comparative Analysis ◽  
Fatigue Life ◽  
Filling Factor ◽  
High Cycle Fatigue ◽  
Maximum Load ◽  
Cycle Fatigue ◽  
Calculation Methods ◽  
Stress Strain ◽  
Variable Amplitude ◽  
Multi Level

ABSTRACT In the paper [1] assumptions for fatigue life calculations in the low- and high- cycle fatigue ranges of metal alloys, have been formulated. Three calculation methods: that expressed in stresses, strains and a mixed (stress-strain) one, have been there presented. In this paper results of fatigue life calculations of C45 steel performed in line with the above mentioned methods have been described, and their comparative analysis has been made. The calculations have been carried out for two-level and multi-level load programs of the varying parameters: maximum load within a load program and different values of spectrum filling factor. The comparative analysis of the results of fatigue life calculations in compliance with the above mentioned methods makes it possible to assess differences in the results and depenendence of the differences on values of load program parameters.

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