6. D modeling: volume mechanical model#

6.1. Boundary conditions#

The AB side is embedded.

The center node on the ED side is linked to the ED side. The twists are applied to this knot.

Pressure:

A unit pressure PX is applied to the inner skin (line AGFE).

A \(\mathit{PY}=\frac{R\stackrel{2}{i}}{R\stackrel{2}{e}-R\stackrel{2}{i}}\) shape effect is applied at the end of the model on the ED segment.

Efforts :

A unit force of 104 N.m is applied to the central node of the face ED for the bending forces in both directions and the torsional force.

The mesh is identical to that of modeling B. Before calculation, the linear mesh is converted into a quadratic mesh.

The mechanical stresses are extracted from the calculation result by the operator MACR_LIGN_COUP.

The constraint result of this calculation is printed for the FC segment by the operator IMPR_TABLE and by the operator IMPR_OAR.