ASME Sec VIII Div 1 Non-Perpendicular Corner Joint Evaluation

[John21423]

I am evaluating an ASME vessel design that has a mitered shell welded at a 45 degree angle to a flat plate using a full penetration weld.
Similar to figure UW-13.2 (e-1) except at a 45 degree angle rather than a 90 degree one.

I believe I can evaluate the flat plate thickness using UG-34(c)(3), but what methods can I use to evaluate the shell thickness and the weld.

I am thinking ASME B31.3 304.2.3 (c), thickness calculation for mitered pipe bends, might be applicable to for the shell thickness.

Any help would be appreciated.
Thank you!

 

[SnTMan]

John21423, I understand you have a cylinder welded at an angle to a plate. I am reading from the 2017 Ed, you may need to confirm to current:

Per UW-3(b) I'd classify the joint as a Cat B angle joint. Per Table UW-12, it is a Type (8) joint and there are no applicable Sec VIII, Div. 1 rules, design is per U-2(g).

Under U-2(g), your proposal to design per B31.3 304.2.3 (c) may be permitted, perhaps not. I'd say agreement among the parties should be reached before proceeding.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[John21423]

SnTMan, Thank you for your feedback.