3. Modeling A#
3.1. Characteristics of modeling#
The models tested are DIS_T on SEG2 meshes. The stiffness characteristics of the discretes are therefore of the type: K_T_D_L, M_T_D_N.
3.2. Characteristics of the mesh#
Number of knots: 3, number of stitches: 2, elements SEG2: 2, elements POI1: 1.
3.3. Boundary conditions and loads#
Nodes N1, N2, N3 are stuck in the Y and Z directions.
Nodes N1 and N3 are subject to displacement \(U(t)\) in the X direction.
\(U(t)\phantom{\rule{2em}{0ex}}=\phantom{\rule{2em}{0ex}}{U}_{0}.\mathrm{sin}(2\mathrm{\pi }.f.t)/(2\mathrm{\pi }.f)\) with \(f=0.5\mathit{Hz}\) and \({U}_{0}=6.0\mathit{mm}\)
3.4. Tested sizes and results#
The quantities are tested in non-regression, with the tolerances by default:
the movement of the N2,
the effort at the N2,
the power dissipated in the non-linear device,
the anelastic displacement of the non-linear device,
the cumulative anelastic displacement of the non-linear device.
The moments used to test the different quantities are those when the effort reaches an extreme.
Figure 3.4-a : Force-displacement response at the node N2.
The following table gives the values of the internal variables related to behavior DIS_ECRO_TRAC, at the times when the force reaches an extrema.
INST |
Strength |
Ux |
Power |
Up |
p |
|
1.275 |
4.0514895E+02 |
1.7698260E+00 |
2.7736499E+02 |
7.5695300E-01 |
1.2698160E+00 |
|
2.525 |
-4.3584585E+02 |
-2.0647460E+00 |
1.0140956E+03 |
-9.7513100E-01 |
-9.7513100E-01 |
3.0786590E+00 |
3.625 |
4.3921743E+02 |
7.7222800E-01 |
1.2982852E+03 |
-3.2581600E-01 |
-3.2581600E-01 |
3.7364570E+00 |
4.525 |
-9.1517870E+01 |
-5.5460400E-01 |
1.2982881E+03 |
-3.2580900E-01 |
-3.2580900E-01 |
3.7364630E+00 |
5.375 |
3.5606066E+02 |
5.6434300E-01 |
1.2982881E+03 |
-3.2580900E-01 |
-3.2580900E-01 |
3.7364630E+00 |
6.400 |
-4.3979664E+02 |
-1.5724580E+00 |
1.3629654E+03 |
-4.7296700E-01 |
-4.7296700E-01 |
3.8850760E+00 |
7.525 |
4.4218454E+02 |
1.4184290E+00 |
1.7096346E+03 |
3.1296800E-01 |
3.1296800E-01 |
4.6769870E+00 |
8.550 |
-4.4221218E+02 |
-8.0345000E-01 |
1.7144548E+03 |
3.0208000E-01 |
3.0208000E-01 |
4.6879540E+00 |
9.500 |
2.2752558E+02 |
8.7087900E-01 |
1.7144615E+03 |
3.0206500E-01 |
4.6879690E+00 |
|
10.450 |
-4.0783182E+02 |
-7.1751500E-01 |
-7.1751500E-01 |
1.7144615E+03 |
3.0206500E-01 |
4.6879690E+00 |
11.450 |
4.1833666E+02 |
1.3479060E+00 |
1.7144615E+03 |
3.0206500E-01 |
4.6879690E+00 |
4.6879690E+00 |
12.525 |
-4.4304092E+02 |
-1.1860040E+00 |
1.8828698E+03 |
-7.8402000E-02 |
-7.8402000E-02 |
5.0705250E+00 |
13.525 |
4.0986344E+02 |
9.4625300E-01 |
1.8828717E+03 |
-7.8406000E-02 |
5.0705290E+00 |
5.0705290E+00 |
14.500 |
-3.2997442E+02 |
-9.0334200E-01 |
1.8828717E+03 |
-7.8406000E-02 |
-7.8406000E-02 |
5.0705290E+00 |
15.475 |
3.8962561E+02 |
8.9565800E-01 |
1.8828717E+03 |
-7.8406000E-02 |
5.0705290E+00 |
5.0705290E+00 |
16.475 |
-4.2729911E+02 |
-1.1466540E+00 |
1.8828717E+03 |
-7.8406000E-02 |
-7.8406000E-02 |
5.0705290E+00 |
17.500 |
4.4325666E+02 |
1.1421040E+00 |
1.9326673E+03 |
3.3962000E-02 |
5.1834430E+00 |
5.1834430E+00 |
18.525 |
-4.2314598E+02 |
-1.0239020E+00 |
1.9326676E+03 |
3.3963000E-02 |
5.1834440E+00 |
5.1834440E+00 |
19.500 |
3.6609776E+02 |
9.4920700E-01 |
1.9326676E+03 |
3.3963000E-02 |
5.1834440E+00 |
5.1834440E+00 |
20.500 |
-3.7879652E+02 |
-9.1302900E-01 |
1.9326676E+03 |
3.3963000E-02 |
5.1834440E+00 |
5.1834440E+00 |
21.475 |
4.0795131E+02 |
1.0538410E+00 |
1.9326676E+03 |
3.3963000E-02 |
5.1834440E+00 |
5.1834440E+00 |
22.500 |
-4.4331859E+02 |
-1.1071190E+00 |
1.9472008E+03 |
1.1780000E-03 |
1.1780000E-03 |
5.2163830E+00 |
23.525 |
4.3377501E+02 |
1.0856150E+00 |
1.9472010E+03 |
1.1770000E-03 |
1.1770000E-03 |
5.2163840E+00 |
24.525 |
-3.9592010E+02 |
-9.8862300E-01 |
1.9472010E+03 |
1.1770000E-03 |
1.1770000E-03 |
5.2163840E+00 |
25.500 |
3.7185745E+02 |
9.3082100E-01 |
1.9472010E+03 |
1.1770000E-03 |
1.1770000E-03 |
5.2163840E+00 |
26.475 |
-3.9223062E+02 |
-9.7939900E-01 |
1.9472010E+03 |
1.1770000E-03 |
1.1770000E-03 |
5.2163840E+00 |
27.475 |
4.3090550E+02 |
1.0784410E+00 |
1.9472010E+03 |
1.1770000E-03 |
1.1770000E-03 |
5.2163840E+00 |
28.500 |
-4.4332341E+02 |
-1.1099060E+00 |
1.9484309E+03 |
-1.5970000E-03 |
-1.5970000E-03 |
5.2191710E+00 |
29.525 |
4.1639039E+02 |
1.0393790E+00 |
1.9484309E+03 |
-1.5970000E-03 |
-1.5970000E-03 |
5.2191710E+00 |
30.500 |
-3.7903620E+02 |
-9.4918800E-01 |
1.9484309E+03 |
-1.5970000E-03 |
-1.5970000E-03 |
5.2191710E+00 |
31.500 |
3.7762833E+02 |
9.4247400E-01 |
1.9484309E+03 |
-1.5970000E-03 |
-1.5970000E-03 |
5.2191710E+00 |