bending stress in circular weld
 

bending stress in circular weld
welding of a circular pipe to a flat plate where the pipe is in pure bending. i've seen the weld stress calculated as
m/sw
m=moment
sw=circular property of the weld
is this the section properties of that of a circular ring, with the effective throat being the thickness of the ring?
check out our whitepaper library.
treat it as a section with wall thickness =1.
this gives you weld load per in (or mm)
or look in blodgett's design of welded structures. it will give you sx in in^2 (which is what csd is talking about by using the thickness of 1). then when you use m/sw, you will get k/in to compare to your weld.
hi apetr26542
stress = m/(zw * w)
w = leg size of weld
m= moment
zw= section modulus of weld treated
as a line= 3.142*d^2/(4)
where d = tube dia
regards
desertfox