6. B modeling results

6.1. Model B tested values

We calculate the function \(\mathit{diff}\) defined as being the difference between the absolute displacement of node \(\mathrm{NO2}\) and that of node \(\mathrm{no2}\). And we check that it really sucks for various moments.

Time (s)	Reference
0.1	0.0
0.2	0.0
0.3	0.0
0.4	0.0
0.5	0.0

We also test the maximum value of the impact force at node \(\mathrm{NO2}\).

Impact type	Reference
against a rigid wall	6,29287E+02
between two mobile structures	6,29287E+02

We also test the values of the absolute fields at node \(\mathit{NO2}\) and at time \(t\mathrm{=}0.01\).

Field	Reference	Type	Tolerance
DEPL_ABSOLU	-1.488877E-004	NON_REGRESSION	1,00E-010
VITE_ABSOLU	-1.287591E-002	NON_REGRESSION	1,00E-010
ACCE_ABSOLU	5.877853E-001	NON_REGRESSION	1,00E-010

We are also testing the OBSERVATION feature. The absolute fields at node \(\mathit{NO2}\) and at the instant \(t\mathrm{=}0.01\) must be the same as the previous fields:

Field	Reference	Type	Tolerance
DEPL_ABSOLU	-1.488877E-004	NON_REGRESSION	1,00E-010
VITE_ABSOLU	-1.287591E-002	NON_REGRESSION	1,00E-010
ACCE_ABSOLU	5.877853E-001	NON_REGRESSION	1,00E-010

Finally, we test option SUIVI_DDL by visually comparing the values obtained with those extracted from the generated OBSERVATION table. These checks focus on movement and speed (fields DEPL and VITE) at node \(\mathit{NO2}\) at time \(t=0.1\). We are also testing option MIN of SUIVI_DDL on the group of elements RESSORT1 at the same time. This moment was chosen so that the minimum value of the displacement fields and speed fields on this mesh group was obtained at node \(\mathit{NO2}\).

For the displacement we therefore find the value: \(\mathrm{-}3.99791E\mathrm{-}05m\) and for the speed the value: \(\mathrm{-}1.51040E\mathrm{-}02m\mathrm{/}s\).