3. Rating conventions#
3.1. Nomenclature of models#
To avoid overloading this document, groupings of the various models are proposed here. We will then call:
3D modeling |
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3D models, 3D_SI |
Modeling INCO_UPG |
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Modeling INCO_UP |
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3D models_ INCO_UP, AXIS_INCO_UPD_PLAN_INCO_UP |
Modeling D_ PLAN |
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Modeling AXIS |
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the models AXISet AXIS_SI |
2D modeling |
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Modeling C_ PLAN |
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Modeling COQUE |
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the models COQUE_3Det DKT |
Modeling TUYAU |
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the models TUYAU_3Met TUYAU_6M |
Modeling COQUE1D |
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the models COQUE_AXIS |
Modeling CONT_PLAN |
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the C_ PLANet models COQUE and TUYAU and COQUE1D |
3D modelling_ DIS |
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the models DIS_Tet DIS_TR |
2D modelling_ DIS |
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2D_ modelling_ DIS_Tet 2D_ DIS_TR |
Modeling DISCRET |
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Modeling POU |
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the models POU_D_E, POU_D_T, POU_D_TG |
Modeling GRILLE |
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the models GRILLEet GRILLE_MEMBRANE |
Modeling PMF |
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the models POU_D_EMet POU_D_TGM |
Modeling BARRE |
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the models BARREet 2D_ BARRE |
Modeling CONT_1D |
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the models BARREetGRILLE |
Modeling CONT_1D (PMF) |
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the models CONT_1Dpour the PMF (direct integration). |
Modeling THM |
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thermo_hydro_mechanical models |
Modeling GRAD_VARI |
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Modeling JOINT |
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PLAN_JOINT, AXIS_JOINT |
3.2. Internal variables#
The internal variables are described briefly in this document for each behavior. Details of their meaning are provided in the specific reference materials for these behaviors. However, the name of the internal variables is visible in the « messages » file when STAT_NON_LINE/DYNA_NON_LINE is run.
Selecting the right internal variable number (V1, V2, V3, etc.) is impractical to use and becomes very difficult when you mix several behaviors. That’s why some commands allow you to use their version named using the NOM_VARI keyword: CALC_CHAMP, CREA_TABLE, IMPR_RESU, POST_CHAMP, POST_ELEM, RECU_FONCTION and TEST_RESU.
In addition, when printing a result in the MED (IMPR_RESU) format, a field named (VARI_ELGA_NOMME) is also produced and allows these internal variables to be easily displayed.
Remarks:
The internal variable called « plasticity indicator » indicates that there was plasticity created during the calculation step and at the current Gauss point and not during the entire transition;
Behavioral laws (keyword RELATION) are not the only steps that create internal variables. The choice of deformation (keyword DEFORMATION =” SIMO_MIEHE “for example), but also the keyword POST_ITER and the use of the De Borst algorithm also use internal variables.
The use of UMAT to program laws of behavior does not allow the use of the naming of internal variables.
Naming internal variables is possible with MFront but this does not yet work in POURSUITE.
Polycrystalline laws of behavior do not name their internal variables either.
Metallurgical-type behavior laws (META_) have a specific naming system, explained in the appendix.