Looking for guidance

[jshaw17]

I have almost zero experience in weld design and I am looking for some guidance. Let me describe my problem. I have a pipe and I need to slip on an annular plate and weld it to the pipe with a fillet weld. The plate is then loaded with a load w that acts concentrically all the way around the plate at a given distance from the pipe. See the attached drawing, sorry for the poor quality. I can determine the moment, shear and deflection of the annular plate for it being "fixed" at the inner ring and "free" at the outer ring. I want to determine if the weld will fail or be ok for a given loading. I am not looking for a step by step answer, just some guidance on how to analyze this particular weld. I have the AWS code and AISC steel manual but with out much experience I'm not sure how to apply it. Any help would be greatly appreciated. Thanks

 

[vesselfab]

so....what you are doing is place a jacket around the pipe...correct?

 

[hydtools]

Sounds like you know everything to calculate the stress in the throat of the weld. Compare the result with the strength of the filler material.

Ted

 

[jshaw17]

I don't know if it is considered a jacket. Say the distance from the inner to outer ring is 4 inches and the thickness is 1 inch. If that constitutes a jacket, then yes I am putting a jacket on the pipe. I want to know that the weld can withstand the moment and shear transferred from the jacket.

 

[MotorVib]

If you are going to be doing more weldment I would look at getting a good set of books. Take a look up any book by Blodgett his "Desgn of Weldment" is a great book that cover things like that it is well worth the $15 to $20.

It is the first book I look in to when doing weldments.

Chris

"In this house, we obey the laws of thermodynamics." Homer Simpson

 

[jshaw17]

Just ordered Design of Weldment and Design of Welded structures this morning. The Lincoln Series of Books are the best value I have seen.