hi

in our current Project in one system the Header size is 16" with sch 10s Titanium pipe and the branches are 4" with sch 10s same titanium mtl
the Branch connection is a WELDOLET
if i am using this it gives a SIF of 4.05
due to this high SIF the branches are failing in the blast case
we are asked to put (0.75*Actual SIF) for blast case
Eventhough there is a Vertical Rest and Holddown very near the Branch (500 mm) it is failing in the vertical blast case
can any one suggest how to solve this