HOW TO PRINT THE CONTACT FORCE IN THE FICHER DATA

hello,

I have done one simulation with contact. I can visuliser le total contact force module from resultat -  history output - CFNM

but i really need to write the results in the ficher data.  I know we can use node print or element print to write the node or element results in the ficher data. but for the total contact force, i didn't find the keyword.

Could anyone help me?

thank you

 

YUE