Material Property Calculator

Calculate the S-N curve, and determine the “m” value of your product from the slope of the S-N curve using VR’s Material Property Calculator.

Material Property (m) can be calculated based on repeated test runs. The steps include:

1. Enter statistical information, Grms and Time or Cycles to Failure
2. Plot Grms vs time (or cycles) on log-log plot
3. Create trendline (power law function)
4. Calculate slop of the power law function trendline (b)
5. Calculate m

Where:

m = (-(1/b)*80% for random waveforms
m =(-(1.b)*60% for sinusoidal waveforms