6. D modeling#
6.1. Characteristics of modeling D#
Plane modeling “AXIS_THMS”
Two laws of behavior are tested: The mechanical law “MOHR - COULOMB” with the following properties: \(\mathit{COHESION}=100\mathit{GPa}\) \(\mathit{PHI}=25\) \(\mathit{ANGDIL}=10\) Mechanical law “RANKINE” with the following properties: \(\mathit{SIGMA}\text{\_}T=10\mathit{Pa}\) The elastic properties remain unchanged;
Coupling “LIQU_SATU”
\(20\mathrm{\times }20\) \(Q8\) elements of equal width
Constant water expansion
The cohesion of the Mohr-Coulomb law and the Rankine traction limit are taken to be sufficiently large for the behavior to remain elastic during loading.
6.2. Results of the D modeling#
Discretization in time: 10 \(180s\) time steps each. Since the solution calculated by Aster takes into account the movements of the fluid and the heat (diffusive phenomena), it is normal not to obtain exactly the reference solution. The differences remain very small.
Result at the final instant \(3600s\) :
\(N°\) NODE |
\(\mathrm{COOR}\text{\_}X\) |
|
Reference \(\mathrm{PRE1}(\mathrm{MPa})\) |
Aster \(\mathrm{PRE1}(\mathrm{MPa})\) |
Differences \((\text{\%})\) |
Tolerance \((\text{\%})\) |
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\(1\) |
0 |
0 |
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\(2\) |
0 |
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