Here is a paper for…
Extending Steinberg’s Fatigue Analysis of Electronics Equipment Methodology to a Full Relative Displacement vs. Cycles Curve
This paper also shows in a very roundabout way that “fatigue damage equivalence” between sine and random vibration occurs when the sine amplitude (zero-to-peak) is approximately equal to the random vibration 2-sigma amplitude.
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Here is a Matlab script for cumulative damage index calculation, to be used after rainflow cycle counting: RD_N.m
This script is for identifying individual points along the RD-N curve: RD_N_point.m
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See also:
Rainflow Fatigue Cycle Counting
Steinberg’s Vibration Analysis for Electronic Equipment
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– Tom Irvine
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