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  7. 2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten

2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten

  • MGolbs
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14 years 3 months ago #5175 by MGolbs
2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten was created by MGolbs
Hallo,

was muss ich in meiner *.comm angeben um die Misesspannungen zu erhalten?

[code:1]
...
Solution=MECA_STATIQUE(MODELE=EleMod,
CHAM_MATER=MatMod,
CARA_ELEM=EleProp,
EXCIT=(_F(CHARGE=Ground,),
_F(CHARGE=Pilot,),),);

Solution=CALC_ELEM(reuse =Solution,
MODELE=EleMod,
RESULTAT=Solution,
OPTION='SIEF_ELNO_ELGA',);

IMPR_RESU(MODELE=EleMod,
FORMAT='MED',
RESU=_F(MAILLAGE=MAIL,
RESULTAT=Solution,
INFO_MAILLAGE='OUI',
PARTIE='REEL',
TOUT_CHAM='OUI',
TOUT_CMP='OUI',
TOUT='OUI',),
INFO=2,);

FIN(FORMAT_HDF='OUI',);
[/code:1]

Gruß und Dank Markus<br /><br />Post edited by: MGolbs, at: 2011/01/11 17:16
Dem Überflüssigen nachlaufen, heißt das Wesentliche verpassen.
Jules Saliège
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14 years 3 months ago #5177 by MGolbs
Replied by MGolbs on topic Re:2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten
Hallo,

hier noch der Vergleich in Bildform:

File Attachment:


Gruß Markus<br /><br />Post edited by: MGolbs, at: 2011/01/11 18:54
Dem Überflüssigen nachlaufen, heißt das Wesentliche verpassen.
Jules Saliège
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14 years 3 months ago #5178 by MGolbs
Replied by MGolbs on topic Re:2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten
Post edited by: MGolbs, at: 2011/01/11 18:43

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<br /><br />Post edited by: MGolbs, at: 2011/01/11 18:54
Dem Überflüssigen nachlaufen, heißt das Wesentliche verpassen.
Jules Saliège
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14 years 3 months ago #5181 by Claus
Replied by Claus on topic Re:2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten
EQUI_SIGM_ 'ELGA/ELNO/NOUE' - first two calculated in CALC_ELEM, 2nd in CALC_NO.
I would recommend displaying the ELGA field, since the interpolation done on the NOUE filed can lead to too high values, and even negative VMis stress.

Regards,

Claus

Ps. you will get help easier if you try to ask you questions in English :)
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
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14 years 3 months ago #5188 by MGolbs
Replied by MGolbs on topic Re:2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten
Hello Claus,

thanks for the replay. Sorry but my english is very bad. I hope you can understand my answer. What meens &quot;ELGA&quot; primary -gauss point's? ELGA are for DISS, ENEL, EPSI...?

I dont understand ... &quot;even negative VMis stress&quot;. Is the plot in Salome with SIEF_ELGA_DEPL the mises stress, or what stress is this in the plot?

Greeting Markus
Dem Überflüssigen nachlaufen, heißt das Wesentliche verpassen.
Jules Saliège
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14 years 3 months ago #5190 by Claus
Replied by Claus on topic Re:2D Innendruckmodell - was in *.comm angeben um Misesspannung zu erhalten
Your English isn't THAT bad :)

Yes, ELGA refers to the Gauss points, which is the exact result from Aster.
When a result is taken from a Gauss point and transferred to a node, the results are interpolated.
This means that if a value is close to zero on a Gauss point, if will become negative on the node points - and vice versa

Try to compare equi_sigm_NOUE and equi_sigm_ELGA and you will see that the NOUE filed will have higher and lower values compared to the ELGA field.

SIEF_ELGA_DEPL is ehm 'pricipal stresses' (?) i.e. SXX normal stresses in the X-axis, SXY shear in the XY direction etc.

Regards,

Claus
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
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