Hello,
Can somebody please give me some reference to a paper or book where it is explained how to condensate:
* from a Q8 serendipity FE to a Q4 FE with drilling DOFs (16 DOFs to 12 DOFs).
* from a H20 serendipity FE to a H8 FE with drilling DOFs (40 DOFs to 24 DOFs).
See the attached figures, taken from the RFEM technical manual.
Regards,
Diego Andrés