5. C modeling

5.1. Characteristics of modeling

Modeling: COQUE_3Dpour test the contact between two plates.

where \(\text{*}\) refers to the middle node of the plate.

\(A=\mathrm{DR1}\) or \(\mathrm{DR21}\),

\(B=\mathrm{DR2}\) or \(\mathrm{DR22}\),

\(C=\mathrm{DR3}\) or \(\mathrm{DR23}\),

\(D=\mathrm{DR4}\) or \(\mathrm{DR24}\).

The nodes on which the boundary conditions are applied are the nodes named cent1 and cent2 located at the center of each plate.

The calculation by the active stress method is carried out without geometric updating and over a single time step.

5.2. Characteristics of the mesh

Use of meshes TRIA6

5.3. Tested values

Central Node Identification	Analytic
\(\mathrm{DZ}\)	-3.426875 E-01
\({\sigma }_{\mathrm{yy}}\)	7.6481 E+09

5.4. Comments

The results obtained with contact are acceptable since an error of the same order of magnitude is obtained as those without contact with a single plate twice as thick.