Dear All,

We have carried out local load analysis of a cylindrical shell (Design code: ASME Sec VIII Div.2 2015) at the location of a pad attached to it as part of the support lug attachment. The PV Elite calculation is attached herewith.

1. Attention is drawn to the page 26 (Test Case). Where vessel stress summation comparison at reinforcing pad edge values are indicated. For Pm (SUS+OCC) (Type of stress Int.), the max. S.I is indicated to be 411.50MPa, whereas the S.I allowable is indicated as 344.76MPa (which works out to be 1.2 times the allowable S.I value of 287.30MPa at 121-degree Celsius design temperature).

2. The case being "hydro test condition" why the S.I allowable is not considered as 0.95 x 517.12MPa (Yield strength of AISI 4130, which is the cylindrical shell material) = 491.2MPa [inline with ASME Sec VIII Div.2 2015 - Article 4.1.6.2.(a).(1) [page no. 156].

Request your views, please!!

Regards

Mohammed Elias D

Dear Mohammed Elias,

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