2. What’s new between 7.2 and 7.3#

2.1. New orders#

2.1.1. MACR_FIABILITE#

This macro-command calculates the probability that a physical variable (displacement, constraint,…) exceeds a threshold defined by the user according to a certain number of parameters that will have been defined as sensitive by the user. These sensitive parameters may be Young’s modulus, Poisson’s ratio, pressure, etc.

The macro-command uses the software MEFISTO which is external to Code_Aster, and which uses the FORM method. (see [7.2.11).

2.1.2. STANLEY#

Stanley, an interactive post-processing tool, was already present in version 7; this macro-command simplifies its call since it is now launched like an ordinary command. (see [7.2.25]).

2.1.3. TEST_FICHIER#

This macro-command makes it possible to test the non-regression of the commands that produce files, for the attention of developers (cf. [7.2.25).

2.2. Resorbed orders#

2.2.1. FACT_INTE_SPEC#

This order has been merged with GENE_FONC_ALEA (see [7.2.3]).

2.2.2. MACR_GOUJ2E_MAIL and MACR_GOUJ2E_CALC#

These two macro-commands are resorbed. The calculation methodology is kept in the zzzz120a and zzzz120b command files that validated these functionalities. (see [7.2.14]).

2.3. Changed orders#

2.3.1. AFFE_CARA_ELEM#

RIGI_MISS_3D new:

  • Allows you to assign the terms of a ground impedance matrix calculated by MISS3D for a given extraction frequency (see [7.2.2]).

2.3.2. AFFE_MODELE#

*_ HH2D new models:

  • These models make it possible to take into account two phases in the two components; dissolved air pressure is linked to dry air pressure by Henry’s law (cf. [7.2.7]).

GRILLE_MEMBRANE new modeling:

  • It is a new element of reinforcement sheets that only works as a membrane, no rotation step (cf. [7.2.21]).

2.3.3. AFFE_CHAR_MECA/AFFE_CHAR_MECA_F#

GRAPPE_FLUIDE new:

  • Allows to take into account the fluid forces due to the movement of the cluster in the fluid that bathes the internal elements of the heart. (see [7.2.2]).

TOLE_PROJ new:

  • Allows you to adjust the projection of the slave nodes to the master meshes (see [7.2.1]).

CONTACT renamed keywords:

  • GROUP_MA_MAIT, MAILLE_MAIT, GROUP_MA_ESCL, MAILLE_ESCL replace GROUP_MA_1, MAILLE_1, GROUP_MA_2, MAILLE_2 respectively (cf. [7.2.4]).

2.3.4. ASSE_MAILLAGE#

OPERATION, MAILLAGE_1, MAILLAGEnouveaux:

  • Three types of operations are now available SOUS_STR, SUPERPOSE, COLLAGE (cf. [7.2.4]).

2.3.5. CALC_CHAM_ELEM/CALC_ELEM#

Duplicate:

  • These two commands duplicated most of the options calculated, only a few options persist in CALC_CHAM_ELEM (see [7.2.17]).

2.3.6. CALC_FATIGUE#

TYPE_CHARGE new:

  • Define the type of load (periodic or not), under the keyword CRITERE, the choice is thus restricted according to the type of load (see [7.2.5]).

CRITERE =” DOMM_MAXI “, PROJECTION, DELTA_OSCI new:

  • These keywords are associated with the new criterion adapted to non-periodic loads; it is a variable amplitude criterion based on a critical plan selected according to the maximum damage induced (cf. [7.2.5]).

CRITERE =” DANG_VAN__MODI_AC “/” DANG_VAN_MODI_AV “ new:

  • This is a variable amplitude criterion based on a critical plan selected from the maximum damage. This criterion, which is adapted to the case where the load is non-periodic, is an evolution of the original DANG VAN criterion. “AC” for constant amplitude, “AV” for variable amplitude (see [7.2.11]).

2.3.7. CALC_G_THETA_T#

New type for the field :

  • We can now provide a field of type cham_no_depl_r (and build it to order!) instead of the one provided by CALC_THETA (cf. [7.2.8]).

2.3.8. CALC_NO#

GROUP_MA_RESU, GROUP_NO_RESU, MAILLE_RESU, NOEU_RESU new:

  • Allow you to specify the area on which the field per element will be reduced before calculating the values at the nodes because incorrect results could be obtained when a node is at the border of two models (see [7.2.7]).

2.3.9. CREA_MAILLAGE/CREA_RESU#

ECLA_PGnouvelles possibilities:

  • You can now split a mesh (by creating one element per Gauss point) on only part of a mesh; and in 2D, give a fictional thickness to flattened elements.

Attention:

The parameters provided to CREA_MAILLAGE and CREA_RESU must be consistent: same mesh groups given in the same order (cf. [7.2.25]).

2.3.10. DEFI_FONCTION#

NOM_PARAnouvelles values:

  • Parameter names added: NORM and DSP (see [7.2.4]).

2.3.11. DEFI_GROUP#

CREA_GROUP_NO / TOUT =” OUI “limited to the option TUNNEL :

  • The use of TOUT =” OUI “is not available for all options, only for option TUNNEL (see [7.2.8]).

2.3.12. DEFI_MATERIAU#

BARCELONEnouveau behavior for KIT_HHMet **** KIT_THHM: **

  • Law of mechanical and water behavior of unsaturated soils. This model involves two criteria, a mechanical plasticity criterion which is that of CAM_CLAY and another water criterion controlled by suction (cf. [7.2.21]).

GLRC/GLRC_FOnouveau behavior:

  • Law of behavior of reinforced concrete plates written in generalized efforts; associated finite element DKTG (on TRIA3 and QUAD4 meshes) (cf. [7.2.4]).

CORR_ACIER new:

  • Damaging elasto-plastic model of a steel in which the plastic deformation at break depends on the corrosion rate (cf. [7.2.23]).

VISC_IRRA_LOGnouveau behavior:

  • Law of visco-elastic behavior for the axial creep of guide tubes under irradiation (cf. [7.2.1]).

DRUCKER_PRAGER new behavior:

  • Behavioral law for soil mechanics (cf. [7.2.7]).

LIQU_AD_GAZ_VAPEnouveau:

  • Dissolved air coupling law for THM (Henry’s law) which relates dissolved air pressure to dry air pressure (cf. [7.2.7]).

DOMM_A, DOMM_B, COEF_CISA_TRAC new:

  • Associated with fatigue criterion DOMM_MAXI of CALC_FATIGUE (cf. [7.2.5]).

EPSP_SEUIL, EXP_Snouveaux:

  • Associated with fatigue criterion DOMMA_LEMAITRE of CALC_FATIGUE (cf. [7.2.19]).

LAMBDAet **D_ LAMBDA_TEMP removed under THM_*: **

  • Thermal conductivity is now defined as the product of three functions of temperature (LAMB_T), saturation (), saturation (LAMB_S), and porosity (LAMB_PHI) plus a constant (LAMB_CT), as well as the three derivatives of the functions (D_ LB_T, D_, D_ LB_S, D_ LB_PHI) (cf. [7.2.10]).

In the thermal case, only LAMB_T is mandatory, the other functions then being taken equal to one and their derivatives zero.

2.3.13. GENE_FONC_ALEA/GENE_MATR_ALEA/GENE_VARI_ALEA#

  • These controls have been completely redesigned; FACT_GENE_ALEA has been reabsorbed in favor of GENE_FONC_ALEA. Refer to the command documentation for the new syntax of use (cf. [7.2.3]).

2.3.14. IMPR_RESU#

FORMAT =” GMSH “/VERSIONnouveau default:

  • The version of the file GMSH by default is now 1.2 (in which GMSH knows how to post-process quadrangles): the quadrangles are not cut into triangles (see [7.2.9]).

2.3.15. INCLUDE_MATERIAU#

New materials available in the material catalog:

Z3 CN20 -09M, Z6 NCTDV25 -15 (see [:ref:`7.2.10 <7.2.10>`], see on the*Code_Aster intranet under Usage/Materials).

2.3.16. MACR_RECAL#

POIDSnouveau:

  • You can weight the different curves on which the adjustment is done (see [7.2.4]).

2.3.17. MODI_MAILLAGE#

SYMETRIEnouveau:

  • Allows you to take the symmetric of a mesh in relation to a line or a plane depending on the dimension (cf. [7.2.16]).

2.3.18. POST_ELEM#

New:

  • You can now use POST_ELEM after multiple resolution with MACRO_ELAS_MULT (see [7.2.22]).

2.3.19. POST_K1_K2_K3#

TOUTnouveau:

  • Allows you to calculate the stress intensity factors on all the nodes of the cells composing the crack bottom (cf. [7.2.4]).

2.3.20. PROJ_CHAMP#

DISTANCE_MAXnouveau:

  • Allows you to cleverly project fields from model A to model B. When nodes of mesh B are not in an element of mesh A and they are beyond a certain distance, the field is not projected (see [7.2.16]).

NUAG_DEG_méthodes removed:

  • These field projection methods have been removed, results inaccurate (cf. [7.2.22]).

2.3.21. POST_RCCM#

TYPE_RESU_MECA new, changed options:

  • This keyword can take the values” UNITAIRE “or” TUYAUTERIE “, OPTION =” FATIGUE” replaces B3200 and B3600… (see [7.2.17]).

2.3.22. MACRO_CARA_POUTRE#

RTnouveau result:

  • Under this keyword, you can obtain the radius of torsion of the cross section of a beam (see [7.2.2]).

2.3.23. STAT_NON_LINE/DYNA_NON_LINE#

ALGO_1D new:

  • We can thus use all the 3D behaviors (small deformations) in the elements of members, grids, multifibre beams, we have extended the method proposed by R. De Borst for plane constraints to 1D behaviors. As for plane constraints, this results in 4 internal variables (cf. [7.2.18]).

ETAT_INIT mandatory in reentering mode (when enriching the result) (cf. [7.2.1]).

BARCELONE new:

  • Behaviour of soils in an unsaturated environment (cf. [7.2.21]).

GLRC new:

  • Behaviour of written reinforced concrete plates under generalized efforts (cf. [7.2.4]).

CORR_ACIER, CORROSION new:

  • Make it possible to provide the parameters necessary for the damagable elasto-plastic model of a steel in which the plastic deformation at break depends on the corrosion rate (cf. [7.2.23]).

SOUS_STRUC new:

  • Integration of static macro-elements. The intended application is to optimize the resolution of large problems in which only a restricted part has non-linear behavior (cf. [7.2.23]).

THER_HOMO, THER_POLY removed:

  • Suppression of the thermal behavior law under RELATION_KIT in THM (cf. [7.2.16]).

2.3.24. THER_NON_LINE_MO#

The command is no longer reentering because only one instant is calculated (stationary calculation in a moving coordinate system).