--- In firstname.lastname@example.org
, "Brain Solenoid"
> Wood Pipes...........must've been real tastey water in the
Always glad to see a fellow engineer. :-)
Actually some stayed in service for a really long time believe it
> You get a lot of benefits from circular structure. One, there are
> corners, so there are no stress concentration regions of the
> Second, because it is round, it sees all load, uniformaly over its
> cross section, for the least amount of material.
> PS - I would have thought the greatest load would be at the
> outer surface, where it not only takes the maximum bending loads (
> Stress = [M*C]/I ) but also the burst pressure ( Stress = F/A ).
> a rigid pipe bend while pressurized it will rupture at the tensile
> extreme surface. Right?
The outer surface would see the greatest stresses with internal
pressure or true bending stresses. However, barrels aren't designed
for internal stresses noted by the flat ends...and perhaps they are
tapered to help prevent "true" bending streses (from trial and error
When seasoning a barrel, the barrel is both filled with water
and submereged so it will swell against the steel retaining hoops.
After filling with spirits, the wetted inner surface will remain
swelled an hopefully water (spirit) tight while the outer surface
The few unused barrels I've seen have loose or floating steel
hoops that are driven tight against the greater diamter wood staves
before conditioning to create the constriction.
I would love to have a wooden barrel filled with my own
creation, but my product never lasts long enough to warrant the
> Regards, and don't take any wooden nickels!
> --- In email@example.com, "grayson_stewart66"
> <grayson_stewart66@y...> wrote:
> > I'm an engineer also and was surprised to find the number of
> > pipes used in the early years. A few are seen at this link
> > http://www.sewerhistory.org/grfx/components/pipe-wood2.htm
> > Most are round and vary rarely was there ever a wooden conduit
> > formed in a "square". In a round structure the greatest
> > are usually on the inner most face - the primary area we want a
> > seal.