Material Property Calculator

Calculators and Tools

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.

Download 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


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

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