Difference between revisions of "Contrib:KeesWouters/Homard/lshape"

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('''The geometry of the construction''')
('''The geometry of the construction''')
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==='''The geometry of the construction'''===
 
==='''The geometry of the construction'''===
 
The mesh refinement is based on [http://www.code-aster.org/outils/homard Homard].
 
The mesh refinement is based on [http://www.code-aster.org/outils/homard Homard].
As usual the geometry is quite simple in order not to disturb the issue we would like to show with other difficulties. The first part consists of a ''beam'' of height 23 [mm] and a cross section of 3*8 [mm2]. This part is modeled by solid elements. On top of this another ''beam'' of height 17 [mm] is added. The width of this beam is 8 [mm]. This part is modeled by shell elements, ie. only the 2D dimensions -height and width- are modeled here. The thickness of 1 [mm] is defined in the Aster command file.
+
As usual the geometry is quite simple in order not to disturb the issue we would like to show with other difficulties. We try to refine the mesh of an L shape with a few holes in it. The thickness of the two 'legs' are 0.8 mm and 1.2 mm. The diameters of the holes vary between 0.9 and 1.0 mm. Overall dimensions of the shape are 5 * 6 * 7 mm3.  
  
 
The geometry is defined in a python script (for download see end of this contribution)  and can be loaded into Salome Geometry module by ''File --> Load script (or ctrl T in the object browser window)''. Right click ''Refresh'' or push ''F5'' after loading if necessary.  
 
The geometry is defined in a python script (for download see end of this contribution)  and can be loaded into Salome Geometry module by ''File --> Load script (or ctrl T in the object browser window)''. Right click ''Refresh'' or push ''F5'' after loading if necessary.  
  
: [[image:kw_overview_geom.jpg]] <br>
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: [[image:kw_lshape.jpg]] <br>
  
 
: x direction is out-of-plane of the shell
 
: x direction is out-of-plane of the shell
 
: z direction is in the main direction of the construction
 
: z direction is in the main direction of the construction

Revision as of 23:39, 21 February 2010

Mesh refinement by the macro command MACR_ADAP_MAIL

[under construction - just started 2010-02-21 ... ]

To start with, this contribution mainly focuses on the use of Salome, Code Aster and the macro command MACR_ADAP_MAIL. So I do not focus on the results and the mechanical justifications of the code that has been used. So no guarantee that the results will be correct up to five decimal places, which they are probably not. I do hope though that this information is useful. For me it has been, because I had to think about some commands and look through the documentation and learn from that. In case of mistakes, errors or remarks, please notify me, or better, you are invited to correct or edit them yourself. Enjoy.

The geometry

The geometry of the construction

The mesh refinement is based on Homard. As usual the geometry is quite simple in order not to disturb the issue we would like to show with other difficulties. We try to refine the mesh of an L shape with a few holes in it. The thickness of the two 'legs' are 0.8 mm and 1.2 mm. The diameters of the holes vary between 0.9 and 1.0 mm. Overall dimensions of the shape are 5 * 6 * 7 mm3.

The geometry is defined in a python script (for download see end of this contribution) and can be loaded into Salome Geometry module by File --> Load script (or ctrl T in the object browser window). Right click Refresh or push F5 after loading if necessary.

Kw lshape.jpg
x direction is out-of-plane of the shell
z direction is in the main direction of the construction