bond between concrete and steel

[akarz029]

Hello everyone, I am modeling a reinforced concrete column under axial load applied as a rigid body load. I modeled the concrete using solid elements elform of 3 and hourglass type 3, for rebars I am using beam element. Concrete material is MAT072R3 and steel is MAT024. For bond between concrete and steel first I used Lagrange in solid but it was affecting the stress distribution in concrete then I switched to beam in solid which seems no issues in concrete stresses. However, I am not able to see the stress in rebar in either cases whether using Lagrange in solid or beam in solid. It seems the stress or axial force is not getting transferred to rebar because when running the simulation there is no movement in rebar. I did activate the extent binary keword by putting the value of BEAMIP to 1. I would appreciate your help to solve this issue I am facing. Please see attached photos for clarity.

 

[ErKo]

 

Hello

See if this helps (several examples etc.):

LSDYNA Concrete models

Perhaps ohers can chime in with some advice and exp. on this subject.

All the best

Erko

 

[akarz029]

Thanks for your support as usual. I tried to open the only example about rebar coupled with concrete but unfortunately the link is not working. Here is the link provided inside the link you shared. http://ftp.lstc.com/anonymous/outgoing/jday/concrete/rebar2.k.gz

Other than this, I did use the material model and contacts mentioned in that link but yet no beam stress. I hope some one faced the issue and has an answer for this request.