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


Applying displacement as a horizontal load to RC frame

Applying displacement as a horizontal load to RC frame

Applying displacement as a horizontal load to RC frame

Hi everyone,

I am trying to apply displacement to a steel plate which is then supposed to push RC frame.
Steel plate is defined as a shell element, while RC frame is consisted of C3D8R solid elements.
The interaction between shell plate and frame is defined as tangential behaviour -friction formulation- penalty and normal behaviour - hard contact.
I am not so satisfied with results, because it seems that shell plate goes through the frame and reinforcement(can be seen on the picture attached).
Do you have any recommendations how to solve this problem, especially how to avoid this passing of the reinforcement through shell plate?

Also, is there any other approach to apply displacement to RC frame? I have also tried with assigning displacement to a RP which is coupled with the surface of the frame's beam, but I am not satisfied with force-displacement curves which I get as result.

RE: Applying displacement as a horizontal load to RC frame

How did you model this reinforcement ? Using embedded region or stringer feature ? Which type of elements is used for reinforcement (solid or truss) ?

Did you try with the plate tied to frame ? You can also make the plate rigid.

RE: Applying displacement as a horizontal load to RC frame

The reinforcement is modeled using embedded constraint. Truss elements were used (T3D2).
I will try with the plate tied to the frame and with rigid plate also. But I assume that the rigid plate would also deform the frame in the same way or even more. But I guess it is worth trying.
Thanks FEA way.

RE: Applying displacement as a horizontal load to RC frame

Check if the contact is working at all. So are there contact stresses? What is the contact direction of the rigid?

Otherwise check if the penalty stiffness is high enough. With soft materials this can be an issue. Scale the stiffness in the contact property with a factor of 2 or 3 and check if the penetration is less then.

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


eBook - Rethink Your PLM
A lot has changed since the 90s. You don't surf the Web using dial-up anymore, so why are you still using a legacy PLM solution that's blocking your ability to innovate? To develop and launch products today, you need a flexible, cloud-based PLM, not a solution that's stuck in the past. Download Now
White Paper - Using Virtualization for IVI and AUTOSAR Consolidation on an ECU
Current approaches used to tackle the complexities of a vehicle’s electrical and electronics (E/E) architecture are both cost prohibitive and lacking in performance. Utilizing virtualization in automotive software architecture provides a better approach. This can be achieved by encapsulating different heterogeneous automotive platforms inside virtual machines running on the same hardware. Download Now

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