1. Reference problem#
1.1. Geometry#
The problem is 3D, it is a rectangular parallelepiped:

We are going to mesh this volume with a massive element of type HEXA8.
A 2D modeling is deduced, meshed with a massive element QUAD4:

1.2. Material properties#
There is no need to be here.
1.3. Boundary conditions and loads#
Not defined.
1.4. Initial conditions#
Not defined.