4. B modeling#
4.1. Characteristics of modeling#
3D
Cutout: |
12 in height |
8 in width and thickness |
|
HEXA8 mesh |
Boundary conditions: |
\(\mathrm{DX}=\mathrm{DY}=0\) out of \(\left]\mathrm{AB}\right]\), \(\mathrm{DY}=0\) in \(D\), \(\mathrm{DZ}=0\) in \(A\) |
Node names: |
\(\mathrm{Point}A=\mathrm{N533}\) |
|
\(\mathrm{Point}C=\mathrm{N989}\) |
|
|
\(\mathrm{Point}E=\mathrm{N527}\) |
4.2. Characteristics of the mesh#
Number of knots: 1053
Number of meshes and types: 768 HEXA8
4.3. notes#
This modeling makes it possible to test the residual error estimator in 3D.
4.4. Tested sizes and results#
Location |
Value type \((m)\) |
Reference |
Point \(B\) |
\({U}_{B}\) |
|
\({V}_{B}\) |
||
\({W}_{B}\) |
—1.721655 10—6 |
|
Point \(C\) |
\({U}_{C}\) |
|
\({V}_{C}\) |
||
\({W}_{C}\) |
—1.707308 10—6 |
|
Point \(D\) |
\({U}_{D}\) |
—1.721655 10—7 |
\({V}_{D}\) |
||
\({W}_{D}\) |
1.434713 10—8 |
|
Point \(E\) |
\({U}_{E}\) |
|
\({V}_{E}\) |
||
\({W}_{E}\) |
—1.291241 10—6 |
|
\((\mathrm{Pa})\) |
||
Point \(A\) |
|
2.29554 105 |
HEX12 |
Relative error |
1.15 |
HEX600 |
Relative error |
1.30 |
4.5. notes#
The mesh remains insufficient for modeling in HEXA8. The overall relative error is low (3%) but exceeds 20% on some meshes.