elements:sgrc2
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elements:sgrc2 [2019/08/14 10:31] helene created |
elements:sgrc2 [2023/12/12 15:59] (current) gilles [Description] |
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| The flow description can be completely different from the mechanical description: the pressure can be interpolated linearly in a 4 node configuration, while the mechanical degrees of freedom are interpolated parabolically in an 8-node configuration. In that case, the flow DoF must be fixed for the nodes that are not used (2, 4, 6, and 8). \\ \\ | The flow description can be completely different from the mechanical description: the pressure can be interpolated linearly in a 4 node configuration, while the mechanical degrees of freedom are interpolated parabolically in an 8-node configuration. In that case, the flow DoF must be fixed for the nodes that are not used (2, 4, 6, and 8). \\ \\ | ||
| Type: 218 \\ \\ | Type: 218 \\ \\ | ||
| - | Implemented by: J-P. Radu, F. Collin (2003) | + | Implemented by: J-P. Radu, F. Collin (2003)\\ |
| + | |||
| + | The framework definition of this element can be found in Pardoen (2015)((Pardoen, B. (2015). Hydro-mechanical analysis of the fracturing induced by the excavation of nuclear waste repository galleries using shear banding. PhD thesis, University of Liège. https://orbi.uliege.be/handle/2268/188222)). | ||
| ==== Files ==== | ==== Files ==== | ||
| Prepro: SGRC2A.F \\ | Prepro: SGRC2A.F \\ | ||
| Line 29: | Line 31: | ||
| |AK0Z|$k_0$ ratio $\sigma_z/\sigma_y$ (if AK0Z=0, AK0Z=AK0X)| | |AK0Z|$k_0$ ratio $\sigma_z/\sigma_y$ (if AK0Z=0, AK0Z=AK0X)| | ||
| ^Biot coefficient - Only if INBIO > 0 (3G10.0)^^ | ^Biot coefficient - Only if INBIO > 0 (3G10.0)^^ | ||
| + | |See [[elements:csol2|CSOL2]] for more details|| | ||
| |**If INBIO = 1**|| | |**If INBIO = 1**|| | ||
| |CBIOT|Biot coefficient| | |CBIOT|Biot coefficient| | ||
| |**If INBIO = 2**|| | |**If INBIO = 2**|| | ||
| |CBIOT1|Biot coefficient $b_{11}$| | |CBIOT1|Biot coefficient $b_{11}$| | ||
| - | |CBIOT1|Biot coefficient $b_{11}$| | + | |CBIOT2|Biot coefficient $b_{22}$| |
| - | ^Definition of the elements (6I5/9I5)^^ | + | |CBIOT3|Biot coefficient $b_{33}$| |
| + | ^Definition of the elements (5I5/9I5)^^ | ||
| |NINTE|Number of integration points (1, 4, or 9)| | |NINTE|Number of integration points (1, 4, or 9)| | ||
| |LMATM|"Classic" mechanical law| | |LMATM|"Classic" mechanical law| | ||
| - | |LMATF|"Second gradient" material law| | + | |LMATSG|"Second gradient" material law| |
| + | |LMATF|Fluid law| | ||
| + | |NNODF|Number of fluid nodes (4 or 8 - Default value = 8)| | ||
| |NODES(9)|List of nodes| | |NODES(9)|List of nodes| | ||
| ===== Results ===== | ===== Results ===== | ||
| __Stresses (in global axes)__: \\ | __Stresses (in global axes)__: \\ | ||
| 4 "classic" mechanical stresses: $\sigma_x$, $\sigma_y$, $\sigma_{xy}$, $\sigma_z$ \\ | 4 "classic" mechanical stresses: $\sigma_x$, $\sigma_y$, $\sigma_{xy}$, $\sigma_z$ \\ | ||
| - | 8 "second gradient" mechanical stresses: $\Sigma_{111}$, $\Sigma_{112}$, $\Sigma_{121}$, $\Sigma_{122}$, $\Sigma_{211}$, $\Sigma_{212}$, $\Sigma_{221}$, $\Sigma_{222}$ \\ \\ | + | 8 "second gradient" mechanical stresses: $\Sigma_{111}$, $\Sigma_{112}$, $\Sigma_{121}$, $\Sigma_{122}$, $\Sigma_{211}$, $\Sigma_{212}$, $\Sigma_{221}$, $\Sigma_{222}$ \\ |
| + | 4 flow stresses: $f_x$, $f_y$, $f_{emmagasiné}$, $0$ \\ \\ | ||
| __Internal variables__: \\ | __Internal variables__: \\ | ||
| Internal variables of the "classic" mechanical law \\ | Internal variables of the "classic" mechanical law \\ | ||
| - | Internal variables of the "second gradient" mechanical law | + | Internal variables of the "second gradient" mechanical law \\ |
| + | Internal variables of the fluid law | ||
elements/sgrc2.1565771511.txt.gz · Last modified: 2020/08/25 15:34 (external edit)
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