7. E modeling

7.1. Characteristics of modeling

The modeling is 3D, only the edge of the frame is represented. Two calculations are performed with different pairing options, contact algorithms, and linear solvers.

7.2. Characteristics of the mesh

Number of knots: 792

Number of meshes and types: 320 HEXA8 for the plate and 32 QUAD4 for the frame.

7.3. Tested sizes and results

First calculation (controlled geometric update, node matching, algorithm “PENALISATION”, solver “MULT_FRONT”)

Identification	Reference type	Reference value	Tolerance
\(\mathit{DX}\) at the point \(A\) instant \(1.0\)	“SOURCE_EXTERNE”	2.86E-5	5.0%
\(\mathit{DX}\) at the point \(B\) instant \(1.0\)	“SOURCE_EXTERNE”	2.72E-5	5.0%
\(\mathit{DX}\) at the point \(C\) instant \(1.0\)	“SOURCE_EXTERNE”	2.28E-5	5.0%
\(\mathit{DX}\) at the point \(D\) instant \(1.0\)	“SOURCE_EXTERNE”	1.98E-5	5.0%
\(\mathit{DX}\) at the point \(E\) instant \(1.0\)	“SOURCE_EXTERNE”	1,5E-5	5,0%

Second calculation (controlled geometric updating, nodal matching, algorithm “PENALISATION”, solver “LDLT”)

Identification	Reference type	Reference value	Tolerance
\(\mathit{DX}\) at the point \(A\) instant \(1.0\)	“SOURCE_EXTERNE”	2.86E-5	5.0%
\(\mathit{DX}\) at the point \(B\) instant \(1.0\)	“SOURCE_EXTERNE”	2.72E-5	5.0%
\(\mathit{DX}\) at the point \(C\) instant \(1.0\)	“SOURCE_EXTERNE”	2.28E-5	5.0%
\(\mathit{DX}\) at the point \(D\) instant \(1.0\)	“SOURCE_EXTERNE”	1.98E-5	5.0%
\(\mathit{DX}\) at the point \(E\) instant \(1.0\)	“SOURCE_EXTERNE”	1,5E-5	5,0%

7.4. notes

The results obtained are close to the external source to within 5% (code mean). The linear solver has no influence on the results.

The 3D problem gives results identical to 2D following the blocking of the degrees of freedom following \(\mathit{DZ}\).