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#1 2018-08-01 10:15:19

Stivan_Astro
Member
Registered: 2018-05-22
Posts: 12

How to visualize internal variables?

Hello everyone,

I perform a tensile test on a specimen with a cohesive behavior potential crack path. The results I get in terms of displacement field or stress field (SIGN component of SIEF_ELGA) satisfy me.

I have some troubles trying to visualize internal variables for the CZM_LIN_REG law over time, V2 and V3 for instance.
V2 is an indicator of dissipation   -->   =0 if linear mode, =1 if dissipative mode
V3 is an indicator of damage       -->   =0 if healthy material, =1 if damaged material, =2 if broken material

This is an extract of my command file :
--------------------------------------------------------------------------------------------------------
EVOL = STAT_NON_LINE(
    MODELE=MO,
    CHAM_MATER=CHMAT,
    COMPORTEMENT=(
        _F(
            GROUP_MA=('SUB_1', 'SUB_2'),
            RELATION='ELAS'
        ),
        _F(
            GROUP_MA=('FISS'),
            RELATION='CZM_LIN_REG'
        )
    ),
    EXCIT=(_F(CHARGE=FIXE), _F(CHARGE=TRACTION, FONC_MULT=coef)),
    INCREMENT=_F(INST_FIN=tfin, LIST_INST=INSTANTS),
    CONVERGENCE=_F(ITER_GLOB_MAXI=10, RESI_GLOB_MAXI=0.0001),
    NEWTON=_F(MATRICE='TANGENTE', REAC_ITER=1)
)

IMPR_RESU(
    FORMAT='MED',
    RESU=_F(
        RESULTAT=EVOL
        LIST_INST=INSTANTS,
        NOM_CHAM=('VARI_ELGA', ),
        NOM_CMP=('V2', 'V3'),
    ),
    UNITE=3
)
--------------------------------------------------------------------------------------------------------

UNITE=3 refers to a 'vari_elga.rmed' file. In Paraview, when I load this file, I have nothing to visualize.
What is wrong?

Best regards,

Steven Petrowiste

Last edited by Stivan_Astro (2018-08-01 13:09:57)

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#2 2018-08-01 16:53:33

Thomas DE SOZA
Guru
From: EDF
Registered: 2007-11-23
Posts: 3,066

Re: How to visualize internal variables?

Hello,

Stivan_Astro wrote:

UNITE=3 refers to a 'vari_elga.rmed' file. In Paraview, when I load this file, I have nothing to visualize.
What is wrong?

Have you applied the required filters to display Gauss point-wise fields ? That is

Filters > Mechanics > ELGA Field to ...

filling the dots with whatever filter is best suited for you :
- display as a discrete field with Point Sprite/Point Gaussion depending on your use of 2017 or 2018 version ;
- display as a scalar map with Surface.

TdS

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#3 2018-08-01 20:25:20

AsterO'dactyle
Administrator
Registered: 2007-11-29
Posts: 312

Re: How to visualize internal variables?

Hello,

You can alse display a special field "VARI_ELGA_NOMME" (IMPR_NOM_VARI in IMPR_RESU) that represents internal variables with their names and not with their number. It's more convenient


Code_Asterの開発者

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