Mesh Refinement with Homard
- Kamil Gul
- Topic Author
- Offline
- Junior Member
-
Less
More
- Posts: 30
- Thank you received: 0
13 years 7 months ago #5857
by Kamil Gul
Mesh Refinement with Homard was created by Kamil Gul
Hi All,
I have question
It is possible to refine mesh using Homard using a static elastic load analysis during which the critical areas are meshed more finely.
It is possible to do that for contact loads where the contact stresses are high.
Or Vibrational loads where the structure will be remeshed according to modal criticality.
Last question, I don't have an experience with Homard. Will I be able to use the remeshed model to create or to alter mesh groups (except nodal groups due to renumbering)
Sincerely,
Kamil
I have question
It is possible to refine mesh using Homard using a static elastic load analysis during which the critical areas are meshed more finely.
It is possible to do that for contact loads where the contact stresses are high.
Or Vibrational loads where the structure will be remeshed according to modal criticality.
Last question, I don't have an experience with Homard. Will I be able to use the remeshed model to create or to alter mesh groups (except nodal groups due to renumbering)
Sincerely,
Kamil
- kwou
-
- Offline
- Moderator
-
13 years 7 months ago #5859
by kwou
Interest: structural mechanics, solar energy (picture at 'my location' shows too little pv panels)
--
kind regards - kees
Replied by kwou on topic Re:Mesh Refinement with Homard
Hoi Kamil
you can have a look here:
www.caelinux.org/wiki/index.php/Contrib:KeesWouters/Homard
You can define several criteria as a basis for Homard to perform mesh refinement, the obvious one being the (static) stress. Then, genenally speeking, Homard will refine say 10 % (your choice) of the elements with the highest stress (your choice, eg Von Mises stress or Sxy, I11).
Groups within the mesh will normally remain unchanged (note that you should therefore create geometry groups and not mesh groups).
Kind regards - kees
you can have a look here:
www.caelinux.org/wiki/index.php/Contrib:KeesWouters/Homard
You can define several criteria as a basis for Homard to perform mesh refinement, the obvious one being the (static) stress. Then, genenally speeking, Homard will refine say 10 % (your choice) of the elements with the highest stress (your choice, eg Von Mises stress or Sxy, I11).
Groups within the mesh will normally remain unchanged (note that you should therefore create geometry groups and not mesh groups).
Kind regards - kees
Interest: structural mechanics, solar energy (picture at 'my location' shows too little pv panels)
--
kind regards - kees
- Kamil Gul
- Topic Author
- Offline
- Junior Member
-
Less
More
- Posts: 30
- Thank you received: 0
13 years 7 months ago #5860
by Kamil Gul
Replied by Kamil Gul on topic Re:Mesh Refinement with Homard
Thanks Kees,
I have a specific question.
When using coque more precisely in english shell elements. In Abaqus or Ansys you can select that geometrical plane to be the base plane rather than to be the mid plane.Therefore you can assure the shell would expand upward direction.
İs it possible to do the same in Code-Aster. Could you manipulate the extension of the shell.
Sincerely,
Kamil
I have a specific question.
When using coque more precisely in english shell elements. In Abaqus or Ansys you can select that geometrical plane to be the base plane rather than to be the mid plane.Therefore you can assure the shell would expand upward direction.
İs it possible to do the same in Code-Aster. Could you manipulate the extension of the shell.
Sincerely,
Kamil
- johannes ackva
- Offline
- Premium Member
-
Less
More
- Posts: 157
- Thank you received: 1
13 years 7 months ago #5866
by johannes ackva
Replied by johannes ackva on topic Re:Mesh Refinement with Homard
Kamil,
Do You mean offset of 2D-elements (in french: excentrement)? This is possible. You must specify the value in AFFE_CARA_ELEM groupwise for Your elements, for example
Cara=AFFE_CARA_ELEM(MODELE=modele,
INFO=2,
COQUE=_F(GROUP_MA='ALL_2D',
EPAIS=1.0,
EXCENTREMENT=1.111,),);
Regards,
Johannes Ackva
______________________________________________________________________
Ingenieurbüro für Mechanik
Dr.-Ing. Johannes Ackva
Markgrafenstr. 21
D 91717 Wassertrüdingen
______________________________________________________________________
next CODE-ASTER-courses organized by Ingenieurbüro für Mechanik
*** SALOME and CODE-ASTER for beginners and nearly-beginners
4 days, 30th Nov - Sat 3rd Dec 2011
*** DYNAMIC ANALYSIS WITH CODE-ASTER
2 days, Thursday 26th to Friday 27th January 2012
www.code-aster.de
Training & Support for NASTRAN and CODE-ASTER<br /><br />Post edited by: johannes ackva, at: 2011/11/04 16:30
Do You mean offset of 2D-elements (in french: excentrement)? This is possible. You must specify the value in AFFE_CARA_ELEM groupwise for Your elements, for example
Cara=AFFE_CARA_ELEM(MODELE=modele,
INFO=2,
COQUE=_F(GROUP_MA='ALL_2D',
EPAIS=1.0,
EXCENTREMENT=1.111,),);
Regards,
Johannes Ackva
______________________________________________________________________
Ingenieurbüro für Mechanik
Dr.-Ing. Johannes Ackva
Markgrafenstr. 21
D 91717 Wassertrüdingen
______________________________________________________________________
next CODE-ASTER-courses organized by Ingenieurbüro für Mechanik
*** SALOME and CODE-ASTER for beginners and nearly-beginners
4 days, 30th Nov - Sat 3rd Dec 2011
*** DYNAMIC ANALYSIS WITH CODE-ASTER
2 days, Thursday 26th to Friday 27th January 2012
www.code-aster.de
Training & Support for NASTRAN and CODE-ASTER<br /><br />Post edited by: johannes ackva, at: 2011/11/04 16:30
- kwou
-
- Offline
- Moderator
-
13 years 7 months ago #5868
by kwou
Interest: structural mechanics, solar energy (picture at 'my location' shows too little pv panels)
--
kind regards - kees
Replied by kwou on topic Re:Mesh Refinement with Homard
Hoi Kamil, Johannes,
but mind that this is not valid for COQUE_3D elements. Just a remark; see eg. page 16/53 of U2.02.01 on the C-Aster site.
[code:1]AFFE_CARA_ELEM:
COQ_3D DKT DKTG DST Q4G COQ_x_PLAN/AXIS
EXCENTREMENT no yes no yes yes no[/code:1]
kind regards - kees<br /><br />Post edited by: Kees Wouters, at: 2011/11/05 11:32
but mind that this is not valid for COQUE_3D elements. Just a remark; see eg. page 16/53 of U2.02.01 on the C-Aster site.
[code:1]AFFE_CARA_ELEM:
COQ_3D DKT DKTG DST Q4G COQ_x_PLAN/AXIS
EXCENTREMENT no yes no yes yes no[/code:1]
kind regards - kees<br /><br />Post edited by: Kees Wouters, at: 2011/11/05 11:32
Interest: structural mechanics, solar energy (picture at 'my location' shows too little pv panels)
--
kind regards - kees
- Kamil Gul
- Topic Author
- Offline
- Junior Member
-
Less
More
- Posts: 30
- Thank you received: 0
13 years 7 months ago #5871
by Kamil Gul
Replied by Kamil Gul on topic Re:Mesh Refinement with Homard
Hi Kees,
Thanks for the responses. I am thinking for 3D Coque Elements and I think I am gonna do that with the inter penetrating shell into bulk material.
When it comes to mesh refinement. I tried to refine an indentation block under the indenter penetration by defining contact. But I can't get it work properly.
It prints out that error message. Any idea?
<EXCEPTION> <EXECLOGICIEL0_3> !
! !
! Code retour incorrect (MAXI 0) : 2560 !
!
!
Regards,
Kamil
Thanks for the responses. I am thinking for 3D Coque Elements and I think I am gonna do that with the inter penetrating shell into bulk material.
When it comes to mesh refinement. I tried to refine an indentation block under the indenter penetration by defining contact. But I can't get it work properly.
It prints out that error message. Any idea?
<EXCEPTION> <EXECLOGICIEL0_3> !
! !
! Code retour incorrect (MAXI 0) : 2560 !
!
!
Regards,
Kamil
Moderators: catux
Time to create page: 0.154 seconds