3. Modeling A#

3.1. Characteristics of modeling#

_images/Object_17.svg

Boundary conditions:

N2: NO. 1: N6:

\({U}_{x}={U}_{y}={U}_{z}=0\) \({U}_{x}={U}_{z}=0\) \({U}_{x}={U}_{y}=0\)

\(\mathit{N9},\mathit{N13},\mathit{N14},\mathit{N5},\mathit{N17}\): \({U}_{x}=0\)

Load: Imposed displacement on face \(\mathrm{[}348711161915\mathrm{]}\) + assignment of the same temperature on all nodes. The total number of increments is 21 (1 increment between \(t\mathrm{=}\mathrm{0s}\) and \(1s\), 20 increments between \(t=1s\) and \(2s\)). The measurement of the deformations is of type SIMO_MIEHE

Convergence is achieved if the residue is less than or equal to RESI_GLOB_RELA = 10—6.

3.2. Characteristics of the mesh#

Number of knots: 20

Number of meshes: 2

1 HEXA20

1 QUAD8

3.3. Tested sizes and results#

Identification

Reference VMIS_ISOT_TRAC

Aster VMIS_ISOT_PUIS

\(\text{\%}\) difference

\(t=2\) Displacement \(\mathit{DX}\) (\(N8\))

303.06

303.06

< 10-4

\(t=2\) Move \(\mathit{DY}\) (\(N8\))

—108.82

—108.82

< 10-4

\(t=2\) Move \(\mathit{DZ}\) (\(N8\))

—108.82

—108.82

< 10-4

\(t=2\) Constraints \(\mathit{SIGXX}\) (\(\mathit{PG}1\))

2651.633

2651.694

0.002

\(t=2\) Variable \(p\) \(\mathit{VARI}\) (\(\mathit{PG}1\))

0.24556

0.24558

0.009