Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Insert plate width reduction

K.P.M.

Mechanical
Jun 5, 2015
38
Hello everyone ,

My custome has been asking to follow WRC insert plate width 1.65* sqrt(R×T)only. However, due to fabrication limitation we want reduce the width of insert plate by using FEA.
Q1. Can I customized the insert plate width.?
Q2. If nozzle has no external load but we want increase local thickness by the insert plate for nozzle reinforcement , still width of insert plate has to be as per WRC?
Q3. There is a statement WRC 297 , based on that can I use FEA to optimise the width ?
"
The rules of this bulletin do not directly cover the treatment of local reinforcement; however, with some judgment in the use of these rules, a reasonable analysis of reinforced penetration junctions can be made.

If the width of the shell reinforcement (pad plate or insert plate) is less than 1.65 RT, then conservatism would require that no credit be taken for the reinforcing material when calculating stress resultants at the junction."

Thanks.
 
Replies continue below

Recommended for you

ASME Section VIII, Division 1 has no such restrictions. You are able to access Appendix 46, which will lead you to Division 2, Part 5 (Design-By-Analysis) either through U-2(g) or UG-16(a). From the perspective of the Code, you can avail yourself of that option.

If your customer is asking you (is it a verbal request, or something in your contract??) to follow something beyond the Code, that is a contractual matter, best managed with your contracts department, and in negotiation with your customer.
 

Part and Inventory Search

Sponsor