Greetings,
I was wondering if anyone has gone through the calculations given for the integral attachments, I am trying at the moment and I have some sort of difficulty in understanding some of the issues as I tried to note in the attached file.
1. Notation "eord" is given in some pages of the code and description confuses the user. Fig 4.3-1 gives the definition of the wall thicknesses in a graph and explonation. This seems very clear. However, Table 11.3.2-1 has different definition for that. It calls it "nominal attachment wall thickness". I guess this should be called "nominal/order pipe wall thickness". The formula given by (11.3.3-7) is very common and "eord" is representing the nominal pipe wall thickness.
2.Formula (11.3.4-6) has one more wall thickness "eord,T". There is no definition for this anywhere in the code. Is it the hollow thickness attachment wall thickness?
3. There is a formula (11.3.4-9) for J for attachment. Other formulas (11.3.5-1), (11.3.5-2) and (11.3.5-4) are using Jbar. Are J and Jbar the same? If not how can we describe Jbar.
4. Formulas (11.3.7-7) is giben for hollow round cross section which includes rectangular attachment dimensions. I guess the formulas (11.3.7-7) and (11.3.7-7) should change the titles. Any ideas?
5. Figure 11.3.3-1 is given for circular attachments with keys a,b, and c. I could not find any use of this Figure in the code and causes confusion. Does anybody knows where to use this figure information in the code.
It became a bit long, but to be able to put the code formulation in the spreadsheet I gues we need to clarify all the questions above.
I was wondering if anyone has done integral attachment calculation for hollow and rectangular. I would like to receive a copy if available. But the clarification above still could be sufficient.
Kind regards,
Ibrahim Demir
I was wondering if anyone has gone through the calculations given for the integral attachments, I am trying at the moment and I have some sort of difficulty in understanding some of the issues as I tried to note in the attached file.
1. Notation "eord" is given in some pages of the code and description confuses the user. Fig 4.3-1 gives the definition of the wall thicknesses in a graph and explonation. This seems very clear. However, Table 11.3.2-1 has different definition for that. It calls it "nominal attachment wall thickness". I guess this should be called "nominal/order pipe wall thickness". The formula given by (11.3.3-7) is very common and "eord" is representing the nominal pipe wall thickness.
2.Formula (11.3.4-6) has one more wall thickness "eord,T". There is no definition for this anywhere in the code. Is it the hollow thickness attachment wall thickness?
3. There is a formula (11.3.4-9) for J for attachment. Other formulas (11.3.5-1), (11.3.5-2) and (11.3.5-4) are using Jbar. Are J and Jbar the same? If not how can we describe Jbar.
4. Formulas (11.3.7-7) is giben for hollow round cross section which includes rectangular attachment dimensions. I guess the formulas (11.3.7-7) and (11.3.7-7) should change the titles. Any ideas?
5. Figure 11.3.3-1 is given for circular attachments with keys a,b, and c. I could not find any use of this Figure in the code and causes confusion. Does anybody knows where to use this figure information in the code.
It became a bit long, but to be able to put the code formulation in the spreadsheet I gues we need to clarify all the questions above.
I was wondering if anyone has done integral attachment calculation for hollow and rectangular. I would like to receive a copy if available. But the clarification above still could be sufficient.
Kind regards,
Ibrahim Demir
