×
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

Pre-Stress a Beam With Other Beam Stress Results

Pre-Stress a Beam With Other Beam Stress Results

Pre-Stress a Beam With Other Beam Stress Results

(OP)
I am in the hope that someone can help me.
I have a question and I will try to explain it without images.

1. It is related to NX Nastran within NX 8.0;
2. One long beam (CBEAM) is constrained at the ends except in its axial direction (X direction);
3. At the middle of the beam, I apply an enforced displacement pulling it up (Z direction);
4. This enforced displacement makes the beam ends displace from their initial position towards the middle of the beam (the left end goes to the right and the right end goes to the left);
5. Now, the beam has tension all long its length;
6. Next, I model a second beam that it just equal to the deformed beam above.

Question:
How I can incorporate the tensions that are present in the first beam into the second beam (that is modelled with the same shape as the first beam) in order to have the second beam with pre-tension/pre-stress/stress-stiffening from the first beam?

I searched over the Internet but without any results.
At EngTips I have read the following:

thread561-337439: Modal analysis of pre-stressed beam structure (NX Nastran)
thread1234-301143: Modal Analysis of Tension Cable Connected Structure
thread561-343266: How do I use simulation results in a new solution?

Nevertheless, those cases are for modal analysis. My case is a structure with bended beams (3D lines model). Because the shape of the bended beams comes from enforced displacements, I would like to instruct NX Nastran that those bended beams have a determinate stress-stiffening obtained from other result analysis.

I hope that my problem may have been well understood by you.
Thank you very much for your time.

My Kind Regards
RPereira

RE: Pre-Stress a Beam With Other Beam Stress Results

(OP)
Can anyone help me please? Thank you.

RE: Pre-Stress a Beam With Other Beam Stress Results

(OP)
Please?

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