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DriveMeNuts Thanks for your response. I found the COMPRESS Codeware report that SIF at pad edge is derived from Part 4.5 ASME Code VIII-2. I cannot figure it out how it is derived for a pad. Nozzle SIF can be figure it out.

Commercial software such as COMPRESS Codeware is using Part 4.5 in ASME Code VIII-2 to derive the SIF at pad edge. It is easy to understand that nozzle with or without pad stress intensity factor (SIF) at intersection could be derived from per eq. 4.5.55 and 4.5.145. But to the pad, what the...

Dear ASME Code VIII-1 specialist. I am confused by U-1(C)(2)(C) interpretation to the "integral parts". I am wondering if the outer casing of pump type VS6 and VS7 in API 610 are "integral...

Mike, Thanks for your response. The "trm" is the maximum shell thickness removed. It times the opening size equal to the available area.

My question is NOT about governing issue. My question is how the MAWP of reinforcement is calculated. The commercial software only gives the results of MAWP at the reinforced area. None of them gives the calculation procedure. Any book and manual have the detail steps and procedure to derive the...

Fb = n*(As + 2*be*ts)*Sc What is the As in the equation, how to calculate it for a saddle? where Sc is allowable compressive stress psi; ts saddle web thickness; n number of saddle ribs; be = di*ts / [di*ts + 2*tw*(b - 1))] where di is maximum span of two ribs; b saddle width; tw rib...

Spherical head is one of special elliptical types (head ratio=1.0), and the torispherical head can be approximated to elliptical head. Per my understanding, the formula 4.15.18 can be generally used to them per the definition of Ri, H2, th.