Sir
Thank you for your reply.
I have modelled as you said and done analysis.My conical bottom has half apex angle more than 60 degrees and to be designed for external pressure..ASME SEC VIII Div 2,Article D-3 has not given reinforcement calculations for this type of geometry. .But in PV Elite generated report ,it is giving reinforcement calculations and it is taking some "DELTA" value also in the calculation.Please Can any body tell Why the reinforcemnet calculations are given for this?. and How axial force acting on the large end of the cone is calculated?
It is giving some errors also like fl is greater than PRl/2.If it is more ,anybody can tell what is the problem.