New answers tagged mechanical-failure
1
I think you might be mixing up the intentions of the two analysis tools you you mentioned - Root Cause Analysis and Design of Experiments. Consider thinking of it this way:
Root Cause Analysis is something you do in order to help identify, well, the "Root Cause" of some issue or problem. There are multiple ways to go about doing a root cause analysis in ...
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Is the question to use a system developed by bureaucrats ( DOE) or RCA developed by Deming, Juran , etc , over 70 odd years ? As a lifelong professional failure analyst I always looked for root cause; there is nearly always more than one cause for a significant failure. DOE came up with odd conclusions when doing failure analysis in areas of my experience of ...
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Let assume a leak has been reported in the following pump system. As a result there is 1 inch of water on the floor. To identify the failure a root cause analysis (RCA) needs to be performed. To illustrate RCA few unrealistic conditions such as operating temperature range of -40C to 85C have been specified.
Based on the above image the flange consist of 3 ...
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Imagine you have a steel column as a solid square of 6-inch by 6-inch section carrying a load P sitting on a square base plate, 12-inch by 12-inch.
The normal stress on the base plate is not $ \ \sigma= \frac {P}{12^2} $
The stress due to the P on the baseplate will be a complex mixture of normal stress, shear stress and bending (moment) stress.
if we ...
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In general, the stress can change from point to point on a surface.
If you have a flat surface with a uniform pressure load applied to it, the normal component of the stress must equal the pressure everywhere to maintain equilibrium, but there can also be shear stress components at the surface which are not constant over the whole surface.
For example, ...
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