FEM Mesh Region

About the development of the FEM module/workbench.

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HarryvL
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Re: FEM Mesh Region

Postby HarryvL » Sun Jan 28, 2018 9:37 pm

Sure ... if you look at my file Test48 you will see that I first created the large cube (Marix) and second the small cube (Core). So when I assign material to the core it references "Box:Solid1" and for the Matrix it references "Box001:Solid1". You can verify this in the Material dialog.

I am now writing a tutorial and recreated the problem, but accidentally started with the small cube (Core), followed by the large cube (Matrix). So the references in the Material dialog are reversed.

Test48 gives the correct results (i.e. based on 2 materials), but the version for the tutorial is incorrect (i.e. based on a single Material).

I therefore presume that in the tutorial case material properties for the Core get overwritten by material prperties of the Matrix.
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HarryvL
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Re: FEM Mesh Region

Postby HarryvL » Sun Jan 28, 2018 9:45 pm

HarryvL wrote:
Sun Jan 28, 2018 9:37 pm
.... So when I assign material to the core it references "Box:Solid1" and for the Matrix it references "Box001:Solid1". You can verify this in the Material dialog.
Oops - this should read

.... So when I assign material to the MATRIX it references "Box:Solid1" and for the CORE it references "Box001:Solid1". You can verify this in the Material dialog.
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HarryvL
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Re: FEM Mesh Region

Postby HarryvL » Wed Jan 31, 2018 11:33 pm

I completed a tutorial for the case of a composite block. Happy to receive suggestions and comments :!:

https://www.freecadweb.org/wiki/FEM_She ... site_Block

UPDATED ATTACHMENT:
BIM(2).fcstd
(16.42 KiB) Downloaded 63 times
Attachments
BIM.fcstd
(467.63 KiB) Downloaded 53 times
Last edited by HarryvL on Thu Feb 08, 2018 8:49 pm, edited 2 times in total.
thschrader
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Location: Germany

Re: FEM Mesh Region

Postby thschrader » Thu Feb 01, 2018 3:12 pm

HarryvL wrote:
Wed Jan 31, 2018 11:33 pm
I completed a tutorial for the case of a composite block. Happy to receive suggestions and comments :!:

https://www.freecadweb.org/wiki/FEM_She ... site_Block

BIM.fcstd
Hi HarryvL,
thanks for your tutorial. In your last picture you have "black cells", You can get a better
view with the clip filter when activating "enable backlight color" in Edit/Preferences/Display.
blackMesh.JPG
blackMesh.JPG (21.39 KiB) Viewed 978 times
shearTutorial.JPG
shearTutorial.JPG (35.88 KiB) Viewed 978 times
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HarryvL
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Re: FEM Mesh Region

Postby HarryvL » Thu Feb 01, 2018 4:40 pm

Thanks !! I will replace the picture.
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HarryvL
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Re: FEM Mesh Region

Postby HarryvL » Thu Feb 08, 2018 8:53 pm

I updated the tutorial to reflect the use of the selection macro by Markus Hovorka (https://github.com/drhooves/SelectionTools).

New case file:

BIM(2).fcstd
(16.42 KiB) Downloaded 57 times

I used the same macro in a practical case study:

https://forum.freecadweb.org/viewtopic.php?f=24&t=26724
fourier
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Re: FEM Mesh Region

Postby fourier » Tue Sep 18, 2018 6:21 am

I have been trying to complete @HarryvL's tutorial but I am unable to find "Post Pipeline from Result" under my Results menu. I am using FreeCAD 0.17.13541 and CalculiX 2.14. Any ideas as to why it is not available to me? Thanks.
Jee-Bee
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Location: Netherlands

Re: FEM Mesh Region

Postby Jee-Bee » Tue Sep 18, 2018 6:48 am

please post your full FreeCAD info. see: https://forum.freecadweb.org/viewtopic.php?f=3&t=2264
for linux and windows.
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HarryvL
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Re: FEM Mesh Region

Postby HarryvL » Tue Sep 18, 2018 4:20 pm

fourier wrote:
Tue Sep 18, 2018 6:21 am
I have been trying to complete @HarryvL's tutorial but I am unable to find "Post Pipeline from Result" under my Results menu. I am using FreeCAD 0.17.13541 and CalculiX 2.14. Any ideas as to why it is not available to me? Thanks.
Hi @Fourier, it is available as a green icon on the menu bar towards the righthand side.
fourier
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Re: FEM Mesh Region

Postby fourier » Tue Sep 18, 2018 5:18 pm

Here is my full FreeCAD info:
OS: Linux Mint 17.3 Rosa
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13541 (Git)
Build type: None
Branch: releases/FreeCAD-0-17
Hash: 9948ee4f1570df9216862a79705afb367b2c6ffb
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)

@HarryvL, here is a screenshot of my GUI, there isn't a green icon in the drop-down menu or on the right side.
Screenshot from 2018-09-18.png
Screenshot from 2018-09-18.png (238.11 KiB) Viewed 660 times