Static structural analysis for rotating wheel
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9 years 11 months ago #8086
by Claus
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
Replied by Claus on topic Re: Static structural analysis for rotating wheel
RichardS: no, I am not certain about anything in Code_Aster really, but it does seem to create a rotated coordinate system in which you can specify the usual BCs for symmetry. I do not know how LIAISON_OBLIQUE and LIAISON_MAIL with an angle differ in this application (rotational load).
Please elaborate if you want to.
/C
Please elaborate if you want to.
/C
Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
- Zach
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9 years 11 months ago #8104
by Zach
Replied by Zach on topic Re: Static structural analysis for rotating wheel
Thank you RichardS one more time!
now it is clear and works good - giving quite realistic results.
Is it possible to add into existing code fatigue?
ie how to estimate (example/tutorial) material fatigue (based on Wohler`s curve for mid steel for example) after some number of cycles (wheel rotations)?
now it is clear and works good - giving quite realistic results.
Is it possible to add into existing code fatigue?
ie how to estimate (example/tutorial) material fatigue (based on Wohler`s curve for mid steel for example) after some number of cycles (wheel rotations)?
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9 years 11 months ago - 9 years 11 months ago #8105
by RichardS
SimScale - Engineering Simulation in your browser!
Replied by RichardS on topic Re: Static structural analysis for rotating wheel
Sure
Just have a look at the CALC_FATIGUE operator and perhaps also POST_FATIGUE .
You can find examples in the validation cases, for example:
SZLZ100 - Fatigue sur un cycle décentré
SZLZ102 - Fatigue avec différentes méthodes de comptage
SZLZ107 - Critères d'amorçage en fatigue sous chargements multi-axiaux pour une localisation critique de la structure
SSLV135 – Critères d'amorçage en fatigue sous chargements multi-axiaux pour une structure
Best ,
Richard
Just have a look at the CALC_FATIGUE operator and perhaps also POST_FATIGUE .
You can find examples in the validation cases, for example:
SZLZ100 - Fatigue sur un cycle décentré
SZLZ102 - Fatigue avec différentes méthodes de comptage
SZLZ107 - Critères d'amorçage en fatigue sous chargements multi-axiaux pour une localisation critique de la structure
SSLV135 – Critères d'amorçage en fatigue sous chargements multi-axiaux pour une structure
Best ,
Richard
SimScale - Engineering Simulation in your browser!
Last edit: 9 years 11 months ago by RichardS.
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9 years 11 months ago #8110
by Zach
Replied by Zach on topic Re: Static structural analysis for rotating wheel
Thank you,
now I try to add fatigue into existing code and have got the following error:
_F(CHAM_GD=Fatigue,
SyntaxError: non-keyword arg after keyword arg
here is also mess file:
www.dropbox.com/s/40bpsaxy2xb6qz9/9243-5_1.1Case.mess?dl=0
Could you please help to understand what does it mean?
now I try to add fatigue into existing code and have got the following error:
_F(CHAM_GD=Fatigue,
SyntaxError: non-keyword arg after keyword arg
here is also mess file:
www.dropbox.com/s/40bpsaxy2xb6qz9/9243-5_1.1Case.mess?dl=0
Could you please help to understand what does it mean?
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9 years 11 months ago - 9 years 11 months ago #8111
by RichardS
SimScale - Engineering Simulation in your browser!
Replied by RichardS on topic Re: Static structural analysis for rotating wheel
Your error message is weird,
but the problem it that you
1. do the fatigue calculation BEFORE you even compute the stresses (CALC_CHAMP)
2. use the "Solution" concept as result, which does not exist and it should be RESU
After fixing that it should work.
Best,
Richard
but the problem it that you
1. do the fatigue calculation BEFORE you even compute the stresses (CALC_CHAMP)
2. use the "Solution" concept as result, which does not exist and it should be RESU
After fixing that it should work.
Best,
Richard
SimScale - Engineering Simulation in your browser!
Last edit: 9 years 11 months ago by RichardS.
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9 years 11 months ago #8113
by Zach
Replied by Zach on topic Re: Static structural analysis for rotating wheel
Thank you,
I have changed code:
www.dropbox.com/s/40bpsaxy2xb6qz9/9243-5_1.1Case.mess?dl=0
but error is the same
I have changed code:
www.dropbox.com/s/40bpsaxy2xb6qz9/9243-5_1.1Case.mess?dl=0
but error is the same
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