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#1 2021-07-19 21:46:48

hgasca
Member
Registered: 2021-07-19
Posts: 6

Coque thermoelastic analysis

Good afternoon.

I am trying to run a Coque thermoelastic analysis but I'm having a problem:

I am following the procedure of the watch?v=1ZNsgykHnGE video and all is running but I am receiving the next message:

  -> Votre modèle semble être composé de plusieurs modélisations, les composantes
      de DEPL qui n'existent pas pour une partie du modèle ont été
      mises à zéro.

And all the results displacements and stresses are going to zero.

I have tested:

1. Individually each analysis thermal and elastic and both ran well.
2. Using linear elements for the thermal and quadratic for the mechanical analysis respectively.
3. Using quadratic elements for the thermal and quadratic for the mechanical analysis respectively.
4. Verified the proj_champ results.

I will appreciate your help.


Attachments:
RunCase_1_Stage_3.comm, Size: 6.54 KiB, Downloads: 40

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#2 2021-07-26 14:05:55

hgasca
Member
Registered: 2021-07-19
Posts: 6

Re: Coque thermoelastic analysis

I have solved this problem with the help of the U2.02.01 reference:

The   thermal   evolution   which   one   can   associate   with   the   material   field   by
AFFE_MATERIAU/AFFE_VARC must be ready to be used by the finite elements of the
mechanical model. A problem arises for the elements of type hull or pipe which use a
temperature varying in the thickness on the various layers. For these elements, it is
necessary to prepare the calculation of the temperature on the layers upstream of the
order AFFE_MATERIAU. For that, the user must use the order CREA_RESU with one of
the operations PREP_VRC1 or PREP_VRC2 Variables of Order”):
- OPERATION=' PREP_VRC1' : calculation of the temperature in the layers of a hull on
the basis of a temperature TEMP= F (THICK, INST)
- OPERATION=' PREP_VRC2‘: calculation of the temperature in the layers of a hull on
the   basis   of   a   temperature   calculated   by  Code_Aster  with   a   model   of   hulls
(TEMP_MIL/TEMP_INF/TEMP_SUP).

Bye.

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#3 2021-07-26 14:09:19

hgasca
Member
Registered: 2021-07-19
Posts: 6

Re: Coque thermoelastic analysis

Solved

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