×
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

Expansion of thin cylinder over time in Abaqus

Expansion of thin cylinder over time in Abaqus

Expansion of thin cylinder over time in Abaqus

(OP)
I need to model a balloon like structure that must expand at a certain rate per second.

I've looked at applying pressure internally on the cylinder but I am not able to control the displacement rate this way.

I've also looked at applying a displacement through boundary conditions but I am not getting the results I want.
As it is a cylinder I am finding it difficult to apply displacement equally around the whole surface.

Does anyone know if this is possible and if so any tips would be appreciated smile

Ive attached a picture
Thanks

RE: Expansion of thin cylinder over time in Abaqus

Not sure about abaqus, but I do this in LS-Dyna by applying a time varying Load on the shell segments. that way they will expand at a rate your load varies.

Also see if you can use the control volume approach where your cylinder can be "inflated" by applying a constant pressure. You can control the mass flow rate and thereby control the pressure.

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