v6.05.106 SSNS106 — Degradation of a reinforced concrete plate under various stresses with global laws GLRC_DM and DHRC#

Summary:

This test validates the reinforced concrete plate damage model GLRC_DM (see [R7.01.32]) and the model coupling damage and internal steel-concrete slip DHRC (see [R7.01.37]) for various cyclic loads: traction/compression, alternating bending, in-plane shear, anticlastic flexure and their combinations. The analyses are done statically (STAT_NON_LINE). The results are compared with those of a multi-layer modeling, in which the steels of the reinforcement layers are represented by elasticity and the concrete by the behavior model ENDO_ISOT_BETON (see [R7.01.04]).

This test can be used as a useful starting point to adjust the settings of model GLRC_DM in the various loading situations that may occur in practice.

To complete, we treat two models with a kit between behavior GLRC_DMet elastoplastic behavior with isotropic work hardening, in order to represent the appearance of residual deformations as expected in reality.

O modeling tests thermomechanics. In this modeling, it is verified that the two thermal expansion loads (homogeneous temperature in the thickness and constant temperature gradient in the thickness) lead to the same state of stress as two simple mechanical loads: extension along \(\mathrm{Ox}\) and bending around \(\mathrm{Oy}\).

The H to J then L and M models correspond to the A to E models for higher stress levels. They thus make it possible to validate model DHRC, with a comparison with model GLRC_DM. The N modeling corresponds to a case of anticlastic flexure (corresponding to shear in the plane for flexure).

The S modeling is in elasticity alone and makes it possible to verify the behavior of element COQUE_SOLIDE, in particular under shear.