5. Summary of results

The problem data corresponds to a thin \(\frac{h}{R}\mathrm{=}0.4\text{\%}\) shell. It is necessary to increase the value of COEF_RIGI_DRZ, which assigns a stiffness around the normal of the shell elements, which by default is \({10}^{\mathrm{-}5}\) the lowest flexural stiffness around the directions in the plane of the shell in order to be able to increase the value of the angle of rotation that can be achieved. Values of this coefficient up to \({10}^{\mathrm{-}3}\) remain legal.

The Code_Aster solution is close to the reference solution SAMCEF for both models.

This test therefore shows the good functioning of modeling COQUE_3D in large displacements and large rotations, without showing any shear blockage.