Fundamentals of Stress Screening
Stress screening, highly accelerated stress screening, burn-in, are expensive activities and to be avoided. Yet stress screening does have a valuable purpose in specific circumstances. Let’s talk about when and why you may conduct stress screening.
The environment is essentially the weather about your product, yet what about the local environment for the power supply within your product? Does the environmental set of stresses change over time? Do the stresses of assembly, transport, storage, or use pose significant risks leading to failure?
Screening of any sort is expensive. It also prone to error. It is best avoided. Yet there are instances when screening, inspecting items in some fashion to determine suitability, adherence to specification, or sorting is the appropriate course of action.
Adding stress adds cost and complexity to the process. It has the advantage of quickening the exposure of flaws, hidden defects, or imperfections. The selection of the stress is important. Selecting the wrong type and amount of stress may not hasten the objective or damage all of your screened items.
Let’s talk about stress screening including why it is such a poor practice and why it should be avoided or stopped as soon as possible. Let’s also discuss how to properly design and run a stress screening process including how to select the appropriate stress, the amount of stress, the different ways to apply stress, the assumptions and most importantly how to avoid needing to stress screen in the first place.
Bring your concerns, questions, and experience with stress screening to this discussion.
This Accendo Reliability webinar originally broadcast on 10 July 2018.
To view the recorded video/audio of the event visit the webinar page.