6. Modeling I#

6.1. Characteristics of modeling#

We use a DKT (QUAD4) modeling. In this modeling, we test COEF_RIGI_DRZ negative. In this case, ddl DRZ has a physical meaning of « drilling rotation » or rotation around normal.

_images/100000000000032A00000116CCC5ED667AC7500A.png

6.2. Characteristics of the mesh#

The mesh contains 39 knots and 24 QUAD4 stitches.

6.3. Tested sizes and results#

Loading ( \(N\) )

Identification

Reference type

Reference value ( \(m\) )

Tolerance \(\text{(\%)}\)

Point

Size

\({F}_{Y}=1\) \({F}_{Z}=0\)

\(A\)

\(\mathit{DY}\)

“SOURCE_EXTERNE”

\(\mathit{DY}=1.754\times {10}^{-3}\)

\(48.0\)

\({F}_{Y}=0\) \({F}_{Z}=1\)

\(\mathit{DZ}\)

“SOURCE_EXTERNE”

\(\mathit{DZ}=5.424\times {10}^{-3}\)

\(62.5\)

6.4. notes#

Under the effect of the large displacements undergone by the structure, the QUAD4 cells become increasingly left during the calculation. The assumptions of modeling DKT are then no longer respected.