Is there one universal Peck exponent?
No. Both activation energy and humidity exponent are mechanism- and material-dependent model parameters and should be justified with evidence.
Reliability Toolkit
Peck Temperature–Humidity Acceleration Factor Calculator
Estimate combined temperature and humidity acceleration for a moisture-related degradation mechanism using the Peck model.
How to use it
Inputs that remain auditable.
- 01
Enter Ea and humidity exponent n.
- 02
Enter use/stress temperature and RH.
- 03
Use equivalent hours only when the same mechanism remains active across both conditions.
Questions
Frequently asked
Does Peck replace HAST or THB qualification requirements?
No. It is a modelling tool; applicable qualification methods and acceptance requirements remain separate engineering decisions.