1. Modeling A

1.1. But

The aim of this test is to validate the use of the macro command POST_LIQUEFACTION. An extremely simple field was created on a 2D dam in order to validate the calculation of the macro-command. Note that for this non-physical test, the orders of magnitude of the criteria do not correspond to the values currently obtained on a dam.

1.2. Description

The hydromechanical modeling is assigned to a 2D mesh: MODELISATION = “D_ PLAN_HM_SI “. The constraint field SIEF_ELGA is retrieved at the Gauss points, in the data structure “EVOL_NOLI” read in the format MED.

The direction of gravity is \(y\). We choose a particular moment.

The values of the fictional fields are:

Component	Value
\({p}_{h}\)	18 Pa
\({p}_{h}^{\mathit{eff}}\)	16 Pa
\({\mathrm{\sigma }}_{\mathit{xx}}^{\mathit{eff}}(t,\mathrm{x})\)	1 Pa
\({\mathrm{\sigma }}_{\mathit{yy}}^{\mathit{eff}}(t,\mathrm{x})\)	3 Pa
\({\mathrm{\sigma }}_{\mathit{zz}}^{\mathit{eff}}(t,\mathrm{x})\)	2 Pa

The values for the constraints effective at time \(t\) and for the reference are the same.

In this case, the expected values (which are not physical) are:

Criteria	Value
DP_SIGV_REF	4
DP_SIGM_REF	6
DP	12 Pa
P_ SIGM	14

1.3. Principle of validation

Comparison of the calculation of the soil liquefaction detection criterion with Code_Aster.

1.4. Tested values

The value of the sum of the absolute values of the components of the difference field components of the SIPYY variables at a particular moment is tested at 0 with a value field corresponding to the expected values (paragraph 1.2).