Description of model parameters
====================================


.. csv-table::

    "**Material setting**", "**DEFI_MATERIAU**", "**Default value**"
    ":math:`{P}_{a}` ", "**PA**", ""
    ":math:`{\mathrm{\sigma }}_{c}` ", "**SIGMA_C**", ""
    ":math:`\mathrm{\beta }` ", "**BETA**", "1.5"
    ":math:`\mathrm{\gamma }` ", "**GAMMA**", "0"
    ":math:`{v}_{1}` ", "**V_1**", ""
    ":math:`{v}_{2}` ", "**V_2**", ""
    ":math:`{a}_{[2]}` ", "**A_2**", ""
    ":math:`{m}_{[0]}^{0}` ", "**M_0**", ""
    ":math:`{m}_{[1]}^{0}` ", "**M_1**", ""
    ":math:`{q}_{i}^{0}` ", "**Q_I**", ""
    ":math:`{\mathrm{\xi }}_{[1]}^{0}` ", "**XI_1**", ""
    ":math:`{\mathrm{\xi }}_{[2]}^{0}` ", "**XI_2**", ""
    ":math:`{\mathrm{\xi }}_{[5]}^{0}` ", "**XI_5**", ""
    ":math:`{f}_{p}` ", "**F_P**", "0.1"
    ":math:`{A}_{v}^{0}` ", "**A**", ""
    ":math:`{n}_{v}` ", "**N**", ""
    ":math:`{\mathrm{\rho }}_{1}` ", "**RHO_1**", ""
    ":math:`{\mathrm{\rho }}_{2}` ", "**RHO_2**", ""
    ":math:`{\mathrm{\rho }}_{4}` ", "**RHO_4**", ""
    ":math:`{r}^{q}` ", "**R_Q**", "0"
    ":math:`{r}^{m}` ", "**R_M**", "0"
    ":math:`{r}^{s}` ", "**R_S**", "0"
    ":math:`{r}_{[1]}^{x}` ", "**R_X1**", "0"
    ":math:`{r}_{[2]}^{x}` ", "**R_X2**", "0"
    ":math:`{r}_{[5]}^{x}` ", "**R_X5**", "0"
    ":math:`Z` ", "**Z**", "0"
    "", "**COUPLAGE_P_VP**", "1"
    ":math:`{b}_{1}` ", "**B_ SIGC**", "0"
    ":math:`{A}_{11}` ", "**A_ SIGC**", "0"


**Notes:**


* *The parameters* of the template*to be filled in under the keyword factor* LKR from the DEFI_MATERIAU command.


* The parameter COUPLAGE_P_VP allows you to activate (1) or not (0) the coupling between the plastic and viscoplastic mechanisms.


* *Parameters that have a value by default are optional.*


* The elastic parameters must be entered under the keyword ELAS_ORTH or ELAS_ISTR. The (visco) plastic anisotropy is of the transverse isotropic type.