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  1. ENG2194

    Flat Plate Bending Weld Stress

    Yes that is correct. Im also curious about having only an upper fillet weld. With just an upper fillet weld would "d" just become "h"?
  2. ENG2194

    Flat Plate Bending Weld Stress

    Hello, I have scenario where a flat plate is welded inside a ridged cylinder with top and bottom fillet welds all the way around and pressure on top. Im trying to figure out how to calculate the bending stress in the fillet welds. I was thinking I could approximate it like the following beam...
  3. ENG2194

    IPGphotonics LightWeld XR & ASME Sec.IX

    We recently purchased a LightWeld XR machine from IPGphotonics. Im trying to write a WPS in compliance with ASME Sec.IX. Couple of things im struggling with is confirmation of weld process (LBW or LLBW) and how to address fillet welds. The link below takes you to the IPGphotonics web site for...
  4. ENG2194

    ASME Sec.IX 2023 QW-200.4

    Could the PQRs in the example above be used to write a WPS for a base metal thickness of 3/16"-1/2" with a GTAW root and an SMAW fill/cap. If so, either process should be able to deposit weld metal up to 1/2" correct?
  5. ENG2194

    ASME Sec.IX 2023 QW-200.4

    Im trying to understand what rules must be followed to write a WPS containing more than one weld process from multiple single process PQRs. 200.4(a) paragraph 1 sentence 2 and paragraph 3 indicate that a WPS can have more than 1 welding process. Without looking at 200.4(b) yet, may this be done...
  6. ENG2194

    ASME Sec.VIII Div 1 App.2 Gasket Design

    I assume that all references to bolt yield throughout PCC-1 means the yield at the operating temperature. ie I should get the bolt yield value from table Sec.II Pt.D Table Y-1 at the operating temp. Correct?
  7. ENG2194

    ASME Sec.VIII Div 1 App.2 Gasket Design

    Can someone help me understand the following points regarding gasket/bolt design according to ASME Sec.VIII Div.1 App.2? Im dealing with a gasket manufacture that claims to follow this portion of the code when sizing gaskets/bolts but they seem to have some extra design criteria that I am trying...
  8. ENG2194

    AutoPIPE Jacket Operating Pressure Different Than Core Operating Pressure

    Can you provide some instructions on how you do it. maybe include some screen shots?
  9. ENG2194

    AutoPIPE Jacket Operating Pressure Different Than Core Operating Pressure

    Sorry if this is not the correct place to post this. I couldn't find an AutoPIPE forum to post this question in. The contractor we use to run stress analysis for jacketed pipe systems recently changed software from Ceaser to AutoPIPE. He now says there is no way to simultaneously run the jacket...
  10. ENG2194

    UCL-23 FCAW Weld Metal Overlay

    Sounds like you are saying that Sec.VIII has a different definition of "manual" than Sec.IX. I got it worked out anyway for "manual" FCAW with thickness verification. Thanks for yalls input. I like to check here to make sure I have missed something before pushing back on our AI.
  11. ENG2194

    UCL-23 FCAW Weld Metal Overlay

    Thanks for the reply. I do find it strange that the code then does not require thickness verification for semi automatic processes though.
  12. ENG2194

    UCL-23 FCAW Weld Metal Overlay

    We are working on a Section VIII Div.1 carbon steel vessel that requires a Nickel alloy corrosion resistant weld metal overlay. For reasons I wont get into here we need to include the thickness of the overlay in the pressure design calculations as permitted by UCL-23(C). We would like to FCAW...
  13. ENG2194

    ASME Sec.IX JIMMY JAMMER Welding Type

    I know this is in a AWS forum but i need information in regards to ASME Sec.IX. Does the JIMMY JAMMER seen in the attached picture really meet the ASME SEC.IX definition of semiautomatic welding as advertised, and not fall into the definition of machine welding? Picture is taken from the...
  14. ENG2194

    ASME B31.3 Flexibility analysis - Operating Conditions

    Looking through B31.3 all the examples in APP.S seem to allow you to run the various load cases under the operating conditions and compare the results to allowable stresses at the operating temperature. However the over pressure protection section only requires you set your relief pressure at...
  15. ENG2194

    ASME Code Stress Output Plots

    Can anyone help me clarify a few questions for me regarding the ASME Code Stress Output Plots that are generated by Compress (see attachment pg 9). - Does "Inside" & "Outside" refer to the stress on the inside surfaces and outside surfaces of the shell/nozzle. - From plots 8 & 9, does anyone...
  16. ENG2194

    ASME B31.3 para.332.4.2 (a) Explained

    Can someone explain the following statement from ASME B31.3 para.332.4.2 (a): "most severely strained material retains at least 10% elongation." Does this mean that if i have a material spec with a minimum elongation of 35% i can strain the material a maximum of 25% before i have to HT. 35%...
  17. ENG2194

    SAE Steel Grades

    Im used to dealing with ASME code where tensile yeild and allowable stresses are clearly stated at various temperatures. Can someone explain to me how this handled in the SAE codes. Ive looked through them and the best i can find are "estimated" tensile and yield strength values from J1397. No...
  18. ENG2194

    Expansion Bellows Meridional Membrane Stress Equation S3

    Im having a hard time imaging the location and means of this stress in a U shaped convolution. Is this stress not the same as the longitudinal stress of an annulus pressure vessel with the same OD as the expansion joint, ID = OD-2*w, and a wall thickness equal to ply thickness? If not please...
  19. ENG2194

    2019 UCS-66 for flanges

    I know the 2019 code changed the UCS-66 curve for as-forged flanges and now there is a series of stipulations to have a lower MDMT for flanges. My question is does UCS-66(C) prohibit the use of UCS-66(b)(1)(-c) for a temperature reduction below 0°F for as forged ferritic flanges?
  20. ENG2194

    IBR for Steam Tracing

    So you're saying steam tracing typically doesn't apply because its typically below the required pressure, but if the design pressure of the steam tracing system is higher than 3.5 barg IBR would apply?

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