adding gussets to a pipe
adding gussets to a pipe
(OP)
looking to add 4 gussets to a dip tube for extra support. not sure how to take into account the gussets when looking at the pie as a cantilever beam. the dip tube is 1 1/2" SCH40 and is 8' long. no way to support at the bottom of the pipe. fear is the pipe will break and be in the tank which would be a problem. goal is to limit the stress on the 304L pipe to 12000 psi. thinking of running gussets to a certain point to limit the stress. not sure how to calculate the gusset dimensions required. any ideas?





RE: adding gussets to a pipe
Does it (the tank) move like a railcar or truck? Is it fixed in place? Any pressures/vibrations from flow or shock or moving fluid? Any internal or operating pressure or pressure changes or flow changes?
See, if there is no abrupt or sudden forces on the pipe, you need only very small gussets.
RE: adding gussets to a pipe
also, this tank could have the process changed from current configuration and the dip tube will need to be overbuilt for its current use
RE: adding gussets to a pipe
A sketch would be useful, for what reason can't the pipe be supported at the bottom?
What forces are acting on the pipe we can't tell from your post.
desertfox
RE: adding gussets to a pipe
RE: adding gussets to a pipe
How about a sketch it seems to me the discharge reaction would be parallel with the pipe so unless there's a bend in it I don't see how analysing it as a cantilever beam fits, perhaps I'm missing something hence the request for a sketch.
desertfox
RE: adding gussets to a pipe
You've got to give us more info. if you want real help. Provide a sketch showing dimensions, loads, how the pipe is supported, and fitted out, your force calcs., etc., etc. How are the current pipes supported, where are they breaking, lets see some pictures of the broken ends of the pipes? If you're are talking about a vapor/liquid mix, and it isn't really imparting a large bending load on the pipe, I wonder if you don't actually have a dynamic/fatigue problem with these pipes. If the breaking pipes are all about the same age, you have found their fatigue life. In which case gussets may not be an improvement at all. They might just introduce new stress raiser and stress concentrations, at all the wrong places.
RE: adding gussets to a pipe
RE: adding gussets to a pipe