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  1. socolp86

    FEA model for VALVE body

    Thanks a lot, but there is a formula to modify the result of the FEA from normal dimension to a minimum material condition. When we can use this formula?(in the condition of the stress and strain is linear) When I use btrueblood's method, how to deal with the problem that the wall thickness is...
  2. socolp86

    FEA model for VALVE body

    Thanks a lot , but I found using the dimensions per the tolerance on the drawing is diffrent from the notification of the least wall thickness on the drawing. For example , I make the model by the method you mentioned, the wall thickness is 0.25 inch, but on the drawing it notified " the...
  3. socolp86

    FEA model for VALVE body

    Dear all, I meet a problem, when we do the FEA for a vlave body, we found it needs a minimum material condition model.How to understand it?Does it is the same as the ASME b14.5 LMC(least material condition)? In advance to thank you for all of your answers. What's your plan, How to do, What do...
  4. socolp86

    How to calculate the compression of o-ring.

    Thanks a lot for all of your comments. What's your plan, How to do, What do you receive after review.
  5. socolp86

    How to calculate the compression of o-ring.

    Ok,thanks for the advices, but on the Parker handbook, it defined the compression very simple(10%-20%). When the o-ring assemble on the stem(with groove), it's inner diameter first to largen. Then, take the stem into the shaft housing, the clearance between the stem and shaft housing control the...
  6. socolp86

    How to calculate the compression of o-ring.

    The o-ring is on the stem, after test, I found the stem has abrasion with the shaft housing. There are two aspects,first to modify the clearance of stem and shaft housing(match the o-ring's OD), second to modify the groove on the stem9match the o-ring's ID). The two methods all change the...

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