2) Temperature ambient, pressure zero.
i tried to delet design temp and pressure for dummy leg pipe but they are automatically inserted again.
4) If pipe diameter is large model from centre of elbow to dummy weld point with zero rigid body. ( for more accuracy rigid angle 41.4 deg)
you mean to say that in between starting node of dummy pipe and centre of elbow i should model a rigid body.?
i have modeled it as per your advice. but still i am confused that what type of sif will be at weld point? sif type welding?