×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Local Load due to Piping on a Flat Plate

Local Load due to Piping on a Flat Plate

Local Load due to Piping on a Flat Plate

(OP)
Is there any guidance for calculating local stresses on a blind flange due to piping loads.
WRC107 / 297 cover cylindrical and spherical shells but what about flat covers etc and fin fan headers.
Is there any guidance in asme viii or asme b31.3?

RE: Local Load due to Piping on a Flat Plate

Design it as a specielty flange in accordance with the BPVC Section 8 Div. 2 Appendix 2. These design rules allow for extenal loadings.

A question properly stated is a problem half solved.

Always remember, free advice is worth exactly what you pay for it!  

http://www.ap-dynamics.ab.ca/

RE: Local Load due to Piping on a Flat Plate

Interesting advice, ColonelSanders83.  How does VIII-1, App.2 allow for external loadings?

RE: Local Load due to Piping on a Flat Plate

(OP)
I don't think it will qualify as a special flange because it is basically a 3" nozzle welded directly on to a 24" blind flange. The opening is relatively small compared to the blind diameter.
How would I assess the loads applied to this branch at the nozzle / blind junction?
Thanks in advance.

RE: Local Load due to Piping on a Flat Plate

TGS4,

My bad, I actually meant to referance the equivelant design procedures from VIII-2 which does handle external loadings. My mistake.

Tired, there is no stated size limitations in the rules for speciel flanges. If you are very concerned with applicability compare the stresses you get with some calculations useing Roark's formulas for stress and strain. I have done this in the past and have had no trouble sleeping at night.

Just my two cents worth.  

A question properly stated is a problem half solved.

Always remember, free advice is worth exactly what you pay for it!  

http://www.ap-dynamics.ab.ca/

RE: Local Load due to Piping on a Flat Plate

You can use nozzle FEA softwares such as Nozzle Pro. It is included in Compress.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources