Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Original Message:

Posted by: Ian-C
Date posted: Wed Apr 11 6:55:36 US/Eastern 2001
Subject: Activation Energies
Message:
I have been supplied 3 temperature and humidity conditions (75C/90%RH; 85C/90%RH; 85C/65%RH) and 3 associated MTTF's. Is there a way that I can calculate the Activation Energy and humidity acceleration factor from this given information. If this is not possible, what other information would be required, other than the normal temperature and humidity operating conditions. (I would normally use the Peck model(Arrhenius-Lawson)for this) If it is not possible to calculate it under damp heat conditions can it be done for dry heat (Arrhenius only). Any help/advice will be greatly appreciated Thanks in advance

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