3. Modeling A#

3.1. Characteristics of modeling#

20 items POU_D_T_GD

3.2. Characteristics of the mesh#

Number of knots: 21

Number of meshes and types: 20 SEG2 (10 in each branch)

3.3. Tested sizes and results#

For this modeling, the tests are non-regression. The values appear as references in all other models.

3.3.1. Graphical results of modeling A#

_images/10000000000005C2000004A574C51139272AE567.png

Figure 3.3.1-a: Force-Displacement Response, modeling POU_D_T_GD.

The values used as a reference for all other models are those in the table. The tolerances are adapted for the test to pass on the various platforms.

Effort (\(N\))

\(\mathit{DX}\) (\(\mathit{mm}\))

()

\(\mathit{DZ}\) (\(\mathit{mm}\))

Tolerance/\(\mathit{DX}\)

Tolerance/\(\mathit{DZ}\)

1.0

1.9557493476051e-01

8.1849504447187e-01

1.0e-06

1.0e-06

1.0e-06

1.2

2.2002897190547e+01

4.5085481299695e+01

1.6e-05

1.2e-05

1.2e-05

1.4

5.1370576657920e+01

5.9127404636640e+01

3.7e-06

5.3e-06

5.3e-06

1.6

7.2308205991507e+01

6.1009065262385e+01

5.9e-06

9.7e-06

9.7e-06

2.0

9.9971410898183e+01

5.5985793815570e+01

2.6e-06

7.8e-06

7.8e-06

3.0

1.3415732610325e+02

3.9186782348842e+01

1.0e-06

7.0e-06

7.0e-06

4.0

1.5070726838590e+02

2.7660150436455e+01

1.0e-06

6.5e-06

6.5e-06

5.0

1.6092764983263e+02

2.0199366888417e+01

1.0e-06

6.2e-06

6.2e-06

Table 3.3.1-a: reference values.

3.4. notes#

The strategy adopted to obtain the force-displacement response of the structure is to pilot effort.

It is also necessary to use the automatic subdivision of the time step. Indeed, the element POU_D_T_GD does not uniformly converge into a residue and it is therefore difficult to complete a calculation with a uniform division of time unless you take very small steps of time, which is sub-optimal.