16. Summary of results

The results obtained using the various sub-integrated elements stabilized by the « assumed strain » method are very close to the results provided by the incompressible quadratic elements, as can be seen on the graph below. This graph brings together the results for various elements:

HEXA8	elements HEXA8classiques
QUAD4	elements QUAD4classiques
HEXA20	elements HEXA20quadratiques
HEXS20	incompressible HEXA20quadratiques elements
HEXS8	integrated HEXA8sous elements
QUAD8	elements QUAD8quadratiques
QUAS8	incompressible QUAD8quadratiques elements
QUAS4	integrated QUAD4sous elements

We thus note the good quality of the solution given by the under-integrated elements and the disappearance of the stress oscillations given by the linear classical elements.

In addition, the HHO models give excellent results, without any lock down.