3. Modeling A#

3.1. Characteristics of modeling#

Viscoelastic material: 3D modeling.

Steel material: modeling DKT (surface elements are the lower skin of the volume elements of the viscoelastic layer).

Aluminum material: modeling DKT (surface elements are the upper skin of the volume elements of the viscoelastic layer).

_images/100000000000056900000240C1F265DD2DAD2888.png

Image 3.1-1:Sandwich plate mesh.

3.2. Characteristics of the mesh#

Number of knots 192

Number of meshes 349

of which: elements SEG2 84

QUAD4 190

HEXA8 75

3.3. Tested sizes and results#

This modeling is used as a reference, so the tests are carried out only to verify the non-regression of the code.

The displacement values along the Z axis at point A are tested.

Direct method

Size

DZ (NUME_ORDE =1)

DZ (NUME_ORDE =100)

DZ (NUME_ORDE =500)