CONTACT Force output

[jskim]

Hello, Everyone. I'm solving a contact problem using FEAP 8.4ver with 2 dimensional mesh.
The problem is when I  solve the contact probelm, there is no output command for contact nodal force.
I found some postings about this problem, but it is hard to understand and apply to my problem.
Is there anyone who print the contact force out?

Another question is that as I knwon from manual, the representative axis of AXISymmetric command in 2D problem is the center of the mesh (BLOCK mesh, r & theta direction). I want to make a model like the axisymmetric of left side BLOCk. How can I transfer the axis?

Last, I used the NTOS command at CONTACT pair, but two surfaces are not well matched (a litte interlaced?) each other. Is it because the mesh is not enough fine?

I attacted my input file, and if anyone has any idea to solve these problems or my input file, please let me know. Thanks a lot.
 
Sincerely,
JS.

 

[Prof. R.L. Taylor]

1. I think the command
        ! TIE2D  in the pair causes all the other commands to be ignored (i.e., it is a blank line as all things after a ! are erased)

2. STRE CONT pair_no el_1 el_2

should output all the contact elements from el_1 to el_2 for pair_no to be output.  You may want to modify PRINT1 inthe
/contact/nts2d directory to eliminate anything you do not want.

The mesh runs on my code

[jskim]

Thank you for your replying, Prof.Taylor.

I have another problem in this input file. If i change the input values of BLOCk1 (e.g., material properties:  more larger stiffness (69e6) and yeild stress (6.6e6)), the contact bw 2 blocks are not well performed.
I gave a displacement boundary condition at the top of the BLOCk2 (indenter), so the upper block just fell down steadily. But, in the case of lower block, it doesent move like upper block.
What I expected is the block1 idents Block2 as follwing load step. This is why I want to solve the contact problem and the block 2 has higher stiffness (like rigid) than block 1.

Always thank you so much