In the Local load analysis as per WRC-107,
it is found that the calculation for the general primary membrane stress values (notation Pm) calculated are not matching with the result as obtained from the standard equations.

General Primary membrane stress values shall be calculated as follows,

Circumferential stress PR/T
Longitudinal stress PR/2T

I think, there may have some concentration factor, but values obtained in the case "loads on the junction of nozzle and shell", values showing much difference.

In compress software it is clear and accurate values with concentration factors are considered.

So please clarify these on the pvelite where the calculation on the General primary membrane stress are not clear.

regards
Abijith