C modeling
==============


Characteristics of modeling
-----------------------------------

The C modeling uses a behavior model for the linear dam, the calculation being carried out from the operator DYNA_VIBRA on a physical and temporal basis, with an undamped Newmark temporal integration scheme (:math:`\mathrm{\beta }=\mathrm{0,25}` and :math:`\mathrm{\gamma }=\mathrm{0,5}`) and a modal damping reduced by 0.01%.

For modeling C, we use:


* the definition of the circle using a sufficiently refined 2D auxiliary mesh of the same circle using the keyword MAILLAGE_GLIS from modeling A.


* the option to automatically build the sliding circle. In this case, the calculation with the auxiliary mesh is used as a reference value.

The safety factor is calculated dynamically for the first time step.


Tested sizes and results
------------------------------

The value of the dynamic global safety factor is tested at the first instant estimated by the macro-command POST_NEWMARK.


.. csv-table:: Facteur de sécurité global – maillage auxilaire

    "**Identification**", "**Reference Type**", "**Tolerance**"
    "t=0.01s", "'NON_DEFINI'", "0.001%"



.. csv-table:: Facteur de sécurité global – maillage par la macro-commande

    "**Identification**", "**Reference Type**", "**Tolerance**"
    "t=0.01s", "'AUTRE_ASTER'", "0.2%"