Abstract

Dianna and Fred discussing the effects of handling, cumulative test, and storage of test parts on test results.

Key Points

Join Dianna and Fred as they discuss experiences of when testing product went awry because of handling, cumulative test, and storage of test parts.

Topics include:

• identifying the true failure mechanism
• keeping in mind the things we don’t specify or control for test can affect results
• being present to identify “hidden” stressors

Listen-in to get ideas of what you might be missing in your test plan.

Enjoy an episode of Speaking of Reliability. Where you can join friends as they discuss reliability topics. Join us as we discuss topics ranging from design for reliability techniques to field data analysis approaches.

SOR 812 Storage of Test PartsDianna Deeney

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Show Notes

Corrosion takes time. If it's not a mechanism that we're actively testing for, it can still show up as a failure mechanism because of how or how long the parts are stored.

Storage itself can be a stressor. For example, for accelerated tests involving temperature and humidity: even if parts are pulled over the weekend, they're still being exposed to cycling because of their storage.

Handling matters. Ask about and watch how parts are moved from test to test to understand what extra stressors may be added to your test plan.

What to do:

• Think through every step of the test process, including handling, storage, and transportation of parts between tests.
• Ensure we're defining failures and finding failure mechanisms (e.g. not blaming a corrosion issue on a high temperature issue).

Related Topics

SOR 796 Very Long Term Storage Question(Opens podcast in a new browser tab)