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## #1 2019-10-10 08:20:38

stefano89
Member
Registered: 2018-04-16
Posts: 5

### Orthotropic material with axi-simmetric element

Dear Code_Aster users,

I would like to simulate an orthotropic plate with axi-symmetric element, but I can't find any information or examples.
I saw that is possible to simulate orthotropic material with ELAS_ORTHO, but for material orientation? I need to use DEFI_COMPOSITE?

Thanks
Best regards

Stefano

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## #2 2019-10-10 11:34:07

VanillaT
Member
Registered: 2019-10-10
Posts: 7

### Re: Orthotropic material with axi-simmetric element

Dear ,
to work with composites you should first define  the UD properties with  ELAS_ORTH
Then, define the composite layups with  DEFI_COMPOSITE
See an example below

glass2 = DEFI_MATERIAU(
ELAS_ORTH=_F(
E_L=45000000000.0, E_T=8000000000.0, G_LT=5000000000.0, NU_LT=0.25
)
)

P2 = DEFI_COMPOSITE(
COUCHE=(
_F(EPAIS=0.00025, MATER=glass2, ORIENTATION=90), _F(
EPAIS=0.00025, MATER=glass2, ORIENTATION=45.0
), _F(EPAIS=0.00025, MATER=glass2, ORIENTATION=0),
_F(EPAIS=0.00025, MATER=glass2, ORIENTATION=45.0)
)
)

Last edited by VanillaT (2019-10-10 11:34:47)

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## #3 2019-10-11 13:56:19

stefano89
Member
Registered: 2018-04-16
Posts: 5

### Re: Orthotropic material with axi-simmetric element

My model is quite different.
I don't have composite material, but a plate modelled with axi-symmetric element, and I would like to implement orthotropic material.

In particular the material properties will be the same only circumferential and radial direction.

I think that the correct material is ELAS_ORTHO, but I don't know how define material orientation.

Hope that I clarify the point.

Thanks and best regards

Stefano

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