Reliability Toolkit

Inverse Power Law Acceleration Factor Calculator

Estimate acceleration when life is modelled as an inverse power of a non-thermal stress such as voltage, load or another mechanism-specific stress variable.

Engineering inputs

Specified in-service or mission stress. Supported range: 1e-06 to 1e+09.

Supported range: 1e-06 to 1e+09.

Positive n models decreasing life with increasing stress; use a fitted signed value. Supported range: -20 to 20.

Supported range: 0 to 1e+09.

Results

Your calculation

Enter the inputs and select Calculate.

Model notes

Field and Test stress use identical units and definitions. Positive n represents decreasing life with increasing stress; the same mechanism applies across both conditions.

Further reading

Book References

Practical Reliability Engineering

Patrick D. T. O'Connor and Andre V. Kleyner

5th Edition. Wiley, 2012.

ISBN 9780470979822

Book details