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The Method to Determine the Expression for Fatigue Curves
There are three common empirical expressions used for the fatigue curves, which are power function, exponential function and three-parameter power function expression, respectively. The mathematical difference between the former two and the latter is whether there exists the constant term S0 in the...
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Published in: | Key engineering materials 2007-09, Vol.353-358, p.331-334 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Online Access: | Get full text |
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Summary: | There are three common empirical expressions used for the fatigue curves, which are
power function, exponential function and three-parameter power function expression, respectively.
The mathematical difference between the former two and the latter is whether there exists the constant
term S0 in the equations. The S0 can be calculated to determine whether the two-paprameter
expression or three-parameter expression should be used. If the two-parameter expression should be
used, the power function and exponential function expressions can be compared to determine which
one is the optimum one. Finally, the method has been validated by several groups of fatigue data. |
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ISSN: | 1013-9826 1662-9795 1662-9795 |
DOI: | 10.4028/www.scientific.net/KEM.353-358.331 |