4. B modeling#

4.1. Characteristics of modeling#

The structure is entirely modelled by quadratic volume elements (PENTA15 and HEXA20). It is supported at both ends.

DYNA_LINE_TRAN calculate the dynamic response of the structure for 3 s, due to a nodal force of a value equal to 100 N on the 3D mesh node located at \(Z=\mathrm{0,02}m\).

4.2. Characteristics of the mesh#

Number of stitches HEXA20

750

Number of stitches PENTA15

250

Table 4.2-1

4.3. Tested sizes and results#

The tables below give the numerical values tested in this test case. These are the minimum and maximum movements in X of a 3D mesh node located at \(Z=\mathrm{0,04}m\).

Identification

Maximum Time

Reference Type

Reference Value

Tolerance

Minimal X displacement

2.2115 s

“AUTRE_ASTER”

-0.0003266

7.00%

Maximum X displacement

2.7065 s

“AUTRE_ASTER”

+0.0003264

7.00%

Table 4.3-1 : Summary of tested results

The responses of the 1D and mixed 1D-3D models of the structure are represented on the graph below.

_images/100002000000030D0000024CD9F1C8DD04E4A2A9.png

Figure 4.3-2: Responses of 1D and mixed 1D-3D models