About the development of the FEM module/workbench.
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bernd
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by bernd » Fri Sep 17, 2021 3:45 pm
fyi:
Code: Select all
>>>
>>> import math
>>> math.pi
3.141592653589793
>>>
bernd
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by bernd » Fri Sep 17, 2021 4:08 pm
bernd
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by bernd » Fri Sep 17, 2021 4:29 pm
FreeCAD FEM 3D truss from solver calculix and z88, see examples gui ... 8145 Meter is surely wrong ...
John have you tested your circular as well?
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bernd
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by bernd » Fri Sep 17, 2021 4:34 pm
if a rectangular section 222x22 mm is used I get reasonable results ... of 8.1 mm maximal deflection
johnwang
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by johnwang » Sat Sep 18, 2021 3:45 am
PBARL maybe working without the continuation mark.
Last edited by
johnwang on Sun Sep 19, 2021 4:32 am, edited 1 time in total.
johnwang
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by johnwang » Sat Sep 18, 2021 8:16 am
bernd wrote: ↑ Fri Sep 17, 2021 4:29 pm
8145 Meter is surely wrong ...
I got the same result.
The Young's Modulus is 200GPa, but the output is small.
change to 200.+09 will gives the right result.
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johnwang
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by johnwang » Sat Sep 18, 2021 10:53 am
Added more elements. The middle part seems not moving.
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bernd
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by bernd » Sat Sep 18, 2021 11:27 am
attached with rectangle section. everything seams correct. It can be seen we did not define hinges ... one of the things to do after the sections work correct ...
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bernd
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by bernd » Sat Sep 18, 2021 11:27 am
we should get this with the circular as well, but something goes wrong with them ...
johnwang
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by johnwang » Sat Sep 18, 2021 11:45 am
bernd wrote: ↑ Sat Sep 18, 2021 11:27 am
we should get this with the circular as well, but something goes wrong with them ...
You need use m for mesh, not mm.