Most things operating in industrial processes are going to have finite lifespans with the heats and stresses that are applied to them 24/7, plus in this case radiation. You’re completely right about safety margin too. I used to run these simulations for mechanical engineers, and they’d always apply some safety factor. The challenge is is making sure that you’re getting the most out of the material while still not compromising on safety.
All of that said, the analysis relies on tabulated data from the ASME code. I doubt they have the data necessary on radiation deterioration to do these detailed calcs. Assuming they don’t, I think you’re right that it would be prudent to retire them at this point.
All of that said, the analysis relies on tabulated data from the ASME code. I doubt they have the data necessary on radiation deterioration to do these detailed calcs.
The article that I linked goes into some detail about their understanding how radiation affects the containing material around it and what’s required to repair it, and the rate that it fatigues. I believe that’s the “layman’s version” of the data you’re looking for.
Most things operating in industrial processes are going to have finite lifespans with the heats and stresses that are applied to them 24/7, plus in this case radiation. You’re completely right about safety margin too. I used to run these simulations for mechanical engineers, and they’d always apply some safety factor. The challenge is is making sure that you’re getting the most out of the material while still not compromising on safety.
All of that said, the analysis relies on tabulated data from the ASME code. I doubt they have the data necessary on radiation deterioration to do these detailed calcs. Assuming they don’t, I think you’re right that it would be prudent to retire them at this point.
The article that I linked goes into some detail about their understanding how radiation affects the containing material around it and what’s required to repair it, and the rate that it fatigues. I believe that’s the “layman’s version” of the data you’re looking for.
It sounds like it’s close at the very least.
Close?