×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

How to define the coupled DOF for nonlinear MultiLinear Plastic link in SAP2000(ETABS)?

How to define the coupled DOF for nonlinear MultiLinear Plastic link in SAP2000(ETABS)?

How to define the coupled DOF for nonlinear MultiLinear Plastic link in SAP2000(ETABS)?

(OP)
Dear Colleagues,

I'm trying to make a model of RC prefabricated structure using ETABS software's link elements to model the connection between the elements.
The links are multi-linear plastic with non-linear force-displacement relationship for U1 and U2 directions.
The U2 direction represents the Coulomb friction relationship depending on the compressive axial force in the U1 direction.
When the axial force becomes positive, the stiffness in U2 direction must be 0.
I'm puzzled and can't figure out how to make a coupled DOF in U1 and U2 directions so that U2 direction stiffness is proportional to the axial force in U1 direction in compression and equals 0 when U1 is in tension.

I would appreciate any suggestions and advice.

Thanks in advance.

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! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close