Need to determine axial strength of screwed joint. Main member 36" diameter pipe with 1" thick wall, 4" diameter sch 80 nipple with 8 no. threads per inch, only 1/2" screwed into main member (self threaded into main ), carbon steel. What maximum tension can this joint sustain?
My solution : the shear strength of 1/2" section of nipple,
.3 x 35,000 (psi, fy for pipe) x (PI x 4.25 x 1/2)(in2, cylindrical contact area) = 70,000 lbs
Off course divide by say 2 for safety, allowable 35,000 lbs
Your comments will be appreciated
Note, this also posted in welded , bonding & fastening
My solution : the shear strength of 1/2" section of nipple,
.3 x 35,000 (psi, fy for pipe) x (PI x 4.25 x 1/2)(in2, cylindrical contact area) = 70,000 lbs
Off course divide by say 2 for safety, allowable 35,000 lbs
Your comments will be appreciated
Note, this also posted in welded , bonding & fastening
