It is a real a good practicabel idea two load cases XY and ZY define ?
Or its not better allways one XYZ load case
to calculatet ?
Ok, for the stress calculation in the pipe we can become by maximum from the XY or ZY load cases lower stress as by XYZ load case.
But what is with the stress in the restraint structures or nozzles on tanks ?
To be realy sure by the stress calculation for this components we must 2 calculations for the load case XY and for the ZY make.
Or we must take the maximum moments and force from both load cases XY , ZY.
And then ist the advantage for this components
off.
How to do this normaly ?