9. Summary of results

We note the good adequacy of the Aster 2D plane deformation reference solution with the results obtained by solid shell models. The difference in the movements at the maximum arrow point compared to the initial geometry is in fact less than 1%. The difference with linear shell modeling is of the order of 1.5% on the estimation of the maximum deflection of the sheet metal. This difference becomes more important for plate element models that do not take into account the curvature of the corrugated sheet. The relative error in estimating the maximum deflection does not seem to want to go below 3%, even by increasing the number of layers to improve the integration of plasticity into the thickness of the element. In this respect, it should be noted that an increase in the number of layers in the thickness makes it possible to improve the estimation of the displacement \(\mathrm{DX}\) at the point where the arrow is maximum without improving the estimate of this last one, for all the models studied. The difference in the quality of results between the various models undoubtedly comes from taking into account the curvature of the corrugated sheet.