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F
eatures
V
ol
23 N
o
3
M
ay
/J
une
2010
105
Experimental and FEM investigation
on influence of ring stiffeners on
buckling behaviour of subsea
pipelines under hydrostatic pressure
H Showkati
– Civil Eng. Department, Urmia University,
Urmia, Iran
R Shahandeh
– Civil Eng. Department, Sama organization
(affiliated with Islamic Azad university),
Khoy branch, Khoy, Iran
T
echnical
A
rticle
90
Welding technology, equipment
& consumables
Welding is crucial to a smooth manufacturing
process. The welded joint can be seen as the
essential link in a structure but as materials
are formulated for greater strength, corrosion
resistance, and other performance factors,
welding can become more challenging. Whether
it is performed under water or in other liquids
it is important that no adverse effect are felt on
the weldment.
84
Production of fittings, couplings
and tubular joints
Fittings, couplings and joints offer solutions to
an extensive range of ordinary and specialised
connecting applications and include reducers,
unions, elbows, flanges and bulkheads among
many other innovative products. As varied as the
product line may be, these closely engineered
pieces all have one thing in common: a precision
fit, whether it is with gaskets, seals and rings or
with the longer pieces.