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  • Users: sopha
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  1. sopha

    What to use for SMYS

    I apologize for my own misunderstanding of what I was asking. I think I have enough information to arrive at my conclusion (or be more confused by it). I misinterpretted another thread. What I am trying to predermine is what trench bed profile an empty pipe will naturally conform to without...
  2. sopha

    What to use for SMYS

    That's like a 1700ft radius. What did you use as a formula? Dale
  3. sopha

    What to use for SMYS

    If you wouldn't mind taking a look at this for me, Just to check on myself I used the following: R = (E*D) / ((Sa)-(P*D)/(4t)), where, R = radius in inches E = modulous of elasticity 29842202 psi D = pipe diamter in inches 8.625 Sa = allowable stress (SMYS) 359 mPa= 52070 psi P =...
  4. sopha

    What to use for SMYS

    Thanks for this. This has been very valuable information. Bend radius has been a problem that no-one in my circle of contacts seemed to be able to solve
  5. sopha

    What to use for SMYS

    thread469-194331 Hi The formula used in this thread utilizes SMYS as allowable stress. Our small utility designs every pipeline to operate below 30% SMYS should I use the 30% value or the allowable stress of the pipe, x52 This thread has been very helpful, I am trying to predermine a trench...

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