3. Modeling A#
3.1. Characteristics of modeling#
The model consists of 2 plates corresponding to the mean plane of the 2 layers of the reference model.
To represent these 2 plates, we start from the mesh of the mean plane of the bilayer that we offset from the distances \(-0.05m\) and \(0.05m\). The elements used are plate DKT elements.
The behavior “ELAS_COQUE” is assigned to each of these plates corresponding to the homogenized orthotropic behavior of the corresponding layer.
The values of the material coefficients entered under “ELAS_COQUE” were calculated directly [U4.43.01], page 27.
3.2. Characteristics of the mesh#
The model has 87 knots and 140 triangular DKT elements.
3.3. Tested values#
Identification |
Reference |
DZ (N1) |
—0.169388 |
\(\mathit{DX}\) (\(\mathit{N10}\)) |
0.008962 |
\(\mathit{DY}\) (\(\mathit{N10}\)) |
0.008170 |
\(\mathit{DZ}\) (\(\mathit{N10}\)) |
0.163598 |
\(\mathit{DRX}\) (\(\mathit{N10}\)) |
4.196430 |
\(\mathit{DRY}\) (\(\mathit{N10}\)) |
—0.050793 |
Identification |
Reference type |
Reference values |
Tolerance % |
|||
Size |
Knot |
Mesh |
||||
ENEL_ELNO |
\(\mathit{TOTALE}\) |
NO. 1 |
M5 |
“NON_DEFINI” |
9.427E-3 |
0.1 |
\(\mathit{MEMBRANE}\) |
“NON_DEFINI” |
4.320E-3 |
0.1 |
|||
\(\mathit{FLEXION}\) |
“NON_DEFINI” |
3.806E-3 |
0.1 |
|||
\(\mathit{CISAILLE}\) |
“NON_DEFINI” |
1.457E-7 |
0.1 |
|||
\(\mathit{COUPL}\text{\_}\mathit{MF}\) |
“NON_DEFINI” |
1.301E-3 |
0.1 |
|||
Identification |
Reference type |
Reference values |
Tolerance % |
|||
Size |
Point |
Mesh |
||||
ENEL_ELGA |
\(\mathit{TOTALE}\) |
1 |
M5 |
“NON_DEFINI” |
8.523E-3 |
0.1 |
\(\mathit{MEMBRANE}\) |
“NON_DEFINI” |
4.320E-3 |
0.1 |
|||
\(\mathit{FLEXION}\) |
“NON_DEFINI” |
3.260E-3 |
0.1 |
|||
\(\mathit{CISAILLE}\) |
“NON_DEFINI” |
1.457E-7 |
0.1 |
|||
\(\mathit{COUPL}\text{\_}\mathit{MF}\) |
“NON_DEFINI” |
9.430E-4 |
0.1 |
|||
Identification |
Reference type |
Reference values |
Tolerance % |
||
Size |
Mesh |
||||
ENEL_ELEM |
\(\mathit{TOTALE}\) |
M5 |
“NON_DEFINI” |
2.468E-5 |
0.1 |
\(\mathit{MEMBRANE}\) |
“NON_DEFINI” |
1.193E-5 |
0.1 |
||
\(\mathit{FLEXION}\) |
“NON_DEFINI” |
9.484E-6 |
0.1 |
||
\(\mathit{CISAILLE}\) |
“NON_DEFINI” |
4.025E-10 |
0.1 |
||
\(\mathit{COUPL}\text{\_}\mathit{MF}\) |
“NON_DEFINI” |
3.264E-6 |
0.1 |
||
3.4. notes#
No error compared to orthotropic bi-layer.