Governing thickness of MDMT Head
Governing thickness of MDMT Head
(OP)
Dear All
In ASME Section VIII, Div.1 the governing thickness (as defined in UCS-66(a)) used in Step 2 of the Figure UCS-66.2 for formed heads is: the minimum specified thickness after forming? Or is it the thickness of the plate before forming used as the governing thickness?
Thanks
In ASME Section VIII, Div.1 the governing thickness (as defined in UCS-66(a)) used in Step 2 of the Figure UCS-66.2 for formed heads is: the minimum specified thickness after forming? Or is it the thickness of the plate before forming used as the governing thickness?
Thanks





RE: Governing thickness of MDMT Head
RE: Governing thickness of MDMT Head
I agree with you,and the software PVElite and Compress also use tg (governing thickness) = tn (nominal thickness), but some Authorized Inspector consider as tg the thickness of the plate BEFORE forming. The ASME does not clear about it, can you show an evidence or interpretation that tg = tn in this case? In the ASME 2011a L-9 Example, have this evidence, but this example was excluded in the ASME PTB-4-2013.
RE: Governing thickness of MDMT Head
http://www.eng-tips.com/
RE: Governing thickness of MDMT Head
RE: Governing thickness of MDMT Head
This distinction is lost on most software, which contributes to my general mistrust of those outputs.
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand