First step with FEM

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doul
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First step with FEM

Postby doul » Fri Dec 25, 2020 4:54 pm

Hello !

After some issues with linux mint (why ????), Fem work well fine on debian.

I just want to say thanks to all people for that great CAD, for free 8-) FreeCAD helps me on my all day welding and machining work.
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Kunda1
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Re: First step with FEM

Postby Kunda1 » Fri Dec 25, 2020 5:43 pm

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doul
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Re: First step with FEM

Postby doul » Thu Jan 21, 2021 10:20 pm

More steps with FEM : a heavy loaded weldable half clamp (screw M30 10.9), with 1500 MPa max stress high strength steel is highly advised !

2 analysis in 1 file, on left max stress , on right displacement.
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doul
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Re: First step with FEM

Postby doul » Thu Jan 21, 2021 10:37 pm

Little flange for cap fixing, before analysis I think C45 steel can do this job, with max stress = 521 MPa, C45 yield strength (Re=450 MPa) is not suitable.
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thschrader
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Re: First step with FEM

Postby thschrader » Sat Jan 23, 2021 9:05 am

Nice work!
BTW: when I have local peak stresses exceeding sigma-max, I run a plastic
analysis by using the additional material-nonlinear option.
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Kunda1
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Re: First step with FEM

Postby Kunda1 » Sat Jan 23, 2021 1:24 pm

doul wrote:
Fri Dec 25, 2020 4:54 pm
After some issues with linux mint (why ????), Fem work well fine on debian.
doul, update to v0.19_pre per the FEM subforum advisory
https://forum.freecadweb.org/viewtopic.php?f=18&t=12212

You can use the PPA or use the AppImage
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johnwang
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Re: First step with FEM

Postby johnwang » Sat Jan 23, 2021 10:12 pm

thschrader wrote:
Sat Jan 23, 2021 9:05 am
Nice work!
BTW: when I have local peak stresses exceeding sigma-max, I run a plastic
analysis by using the additional material-nonlinear option.
nonlinear.JPG
What you look at then?
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doul
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Re: First step with FEM

Postby doul » Sun Jan 24, 2021 11:45 am

thschrader wrote:
Sat Jan 23, 2021 9:05 am
Nice work!
BTW: when I have local peak stresses exceeding sigma-max, I run a plastic
analysis by using the additional material-nonlinear option.
Thanks for the tip ;) I'll take a look.
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doul
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Re: First step with FEM

Postby doul » Sun Jan 24, 2021 12:04 pm

Kunda1 wrote:
Sat Jan 23, 2021 1:24 pm

doul, update to v0.19_pre per the FEM subforum advisory
https://forum.freecadweb.org/viewtopic.php?f=18&t=12212

You can use the PPA or use the AppImage
Okay, it's done now. I've moved to FreeBSD 12.2 since first post, "stable" version is 18.5 now. To get FreeCAD 0.19 running I've installed Linux Debian on a virtual machine.

On left screen FreeBSD running TWM widow manager running Virtualbox -> on right screen Linux Debian 10 running XFCE widow manager runnig FreeCAD. Complicated ! :shock:
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Kunda1
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Re: First step with FEM

Postby Kunda1 » Sun Jan 24, 2021 1:26 pm

doul, very cool. BTW, please remove your version info from your signature. Since that is a moving target your older posts won't make sense anymore. Therefore we have a guideline to prevent this misunderstanding. Thank you for your comprehension.

Also, do you know any folks in the *BSD world that are running v0.19 natively ?
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