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  1. Ding123

    Good source for the basics of FEA

    GregLocock, Never become an expert, then.
  2. Ding123

    Good source for the basics of FEA

    40818,what you said is exactly right. Practical FEA requires deep understanding of the theory and a lot of experience. Your input garbage, you get garbage. Also, all the results need interpretion which need engineering sense too. FEA is not just piece of cake. Thanks.
  3. Ding123

    ASME VIII-1 Par. UG-47: Theory Behind

    Regidity has to be provided for liquid/gas tight as well.
  4. Ding123

    FEA course notes

    You may go to here to see some stuff: http://www.colorado.edu/engineering/Aerospace/CAS/courses.d/IFEM.d/Home.html
  5. Ding123

    FEA Theory Course

    IAANSTIFLE, It is good idea to go into the black box to see. But FEA is not really a piece of cake. Actually you can not go deep enough to UNDERSTAND the whole thing. For example, there are some many types of elements good for different tpye of problems. You can for sure get some idea from a...
  6. Ding123

    Chinese translation

    Dear all: Anyone knows the Chinese translation of the following terms? back-gouge (in weldment) and flare-bevel groove weld. Thanks. Ding123
  7. Ding123

    Japanese Nominal Nozzle Sizes?

    Dear all: I am working on a project in Japan. The customer specified nominal size for nozzles as 1B, 2B, 3B, etc. What kind of sizes are these stuff? Thanks.
  8. Ding123

    Sizing a vent nozzle of a steam flash tank

    TD2K: Thanks for your input. The conditions are: the steam @490F 600psi enter the flashing tank @ a rate of 2kg/s. The quenching water is sprayed into the tank as well. The water / condensate will be drained at the bottom and the remaining steam be vented to open air. Thanks again for your...
  9. Ding123

    Sizing a vent nozzle of a steam flash tank

    Dear all: I am coming up with a steam flash tank design. I need to size the tank and the vent nozzle. The vent is open to air. Steam inlet: 2kg/s @490F 600psi Water spray: 3.2kg/s @90F 30psi How could I start with and what is the proper procedure? Also, the required max. venting noise...
  10. Ding123

    NDEs

    Thanks to all for your input with kindness. Ding123
  11. Ding123

    NDEs

    Yes, RT is Radiographic Testing: 1 is Level I, 2 level II and 3 level III. Some customers specify those levels. I guess: RT1: 100% testing; RT2: spot UW-11(b) type 1 on long. seams, spot UW-11(a)(5)b type 1 on circum. RT3: all seams spot UW-11(b) type 1. Please advise.
  12. Ding123

    NDEs

    Anybody tells me the NDE meaning? RT1 RT2 RT3 Thanks.
  13. Ding123

    Simulating the Bending of Metal Plates?

    The moment in the plate changes along the length and depends upon the actual deflection from the "FORCE LINE". That's why I am saying the problem has to be solved iteratively. The moment equation is CORRECT, but how can you get the moment without initial deflection? Where the initial...
  14. Ding123

    Simulating the Bending of Metal Plates?

    Altough Flame's equations are fundamentally CORRECT for deflection due to a moment! It will not help much for this problem. This is buckling problem and has to be solved iteratively.
  15. Ding123

    How to detail this beam?

    I do not really understand the problem.
  16. Ding123

    Differences between SA350 LF2, LF2 Cl.1 and LF2 Cl.2?

    Somebody would like teel me the differences between SA350 LF2, LF2 Cl.1 and LF2 Cl.2? (Flange materials)
  17. Ding123

    impact test vs. material normalization

    When the design does not meet the required MDMT, which is the first cheap method to treat the material? impact test, material normalization, or fine grain practice?
  18. Ding123

    Gauge thicknesses

    Somebody has a list of true thicknesses per gauge numbers?

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