8. Summary of results

With a Poisson’s ratio \(\nu\) very close to \(0.5\), we find the results of the incompressible analytical solution with a small difference. Note that it is not necessary to explicitly impose the incompressibility condition \(\mathrm{tr}\varepsilon =0\) in order to obtain good results since the results are almost identical whether one activates or not, the condition \(\mathrm{GONF}=0\) with DDL_IMPO.