×
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

Determining Pressure Outside a Tube with Pressure Inside

Determining Pressure Outside a Tube with Pressure Inside

Determining Pressure Outside a Tube with Pressure Inside

(OP)
Hello all,

I am trying to figure out for a hydro-forming application how much pressure is actually passed through a tube into the tool. Granted if the part we are talking about has lots of varying part shape than things can get complicated very quickly. But if we look at just a straight round tube with a yield strength of 648 n/mm^2 and were to fill it with say 3000 Bar or 300 n/mm^2. Am I correct in thinking that the tool would actually not see any force at all from the pressure inside the tube because the yield strength is below the forming pressure being applied to the tube?

Is there a formula I can use to calculate how much pressure is being passed through the tubes wall onto the tool?

Where does wall thickness come into play? I would have to assume that a tube with a 1mm wall thickness would pass more pressure onto the tool than a tube with a 10mm wall thickness even if they both were to have the same yield strength.

Please correct me if anything I just stated is incorrect or if I am misunderstanding some simple concept.

Thank you for any help

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