ABAQUS Tutorial: Buckling of a trunecated composite cone under axial compression

  Рет қаралды 1,994

Dr.-Ing. Ronald Wagner

Dr.-Ing. Ronald Wagner

Күн бұрын

Пікірлер: 14
@milichikini
@milichikini 2 жыл бұрын
Thanks a lot for all your videos, I've checked all of them, it's been so useful!
@reginawagnerbiolife7867
@reginawagnerbiolife7867 4 жыл бұрын
This is a structure of my PHD dissertation
@hnrwagner
@hnrwagner 4 жыл бұрын
What kind of shell buckling analysis do you want to see next ? comment below
@Pk01121992
@Pk01121992 3 жыл бұрын
nonlinear buckling of same problem
@hnrwagner
@hnrwagner 3 жыл бұрын
@@Pk01121992 look at 11:00, there are the results of an nonlinear analysis
@milichikini
@milichikini 2 жыл бұрын
2. When we have a linear analysis we apply a load (-1N) to find the critical load where the buckling occurs, But in the non-linear case why we use a displacement (-1 mm) - I supposed it due displacement that you apply in your test- isn't it?
@hnrwagner
@hnrwagner 2 жыл бұрын
in non-linear analysis we evaluate the reaction force and usually buckling occurs for this thin shell within 1 mm of displacement, this is due to experience. for thicker shells one should use 10 mm
@milichikini
@milichikini 2 жыл бұрын
Finally, why you found the same critical load in both cases if in the non-linear analysis we are consider a imperfection, we supposed the load should be minor due this imperfection?
@hnrwagner
@hnrwagner 2 жыл бұрын
because the imperfection is very very small. For an imperfect buckling load which may be suitable as a design load you need to apply different methods. Like: SBPA: kzbin.info/www/bejne/bWWbpJ1oot1-btE LRSM: kzbin.info/www/bejne/j3y6lpKfibJ2o7s SPLA: kzbin.info/www/bejne/m6fLm52pirWdrdk
@AE99_Felicis...
@AE99_Felicis... 3 ай бұрын
@@hnrwagner Hello. The video is restricted(LRSM,SPLA). Can you provide access?
@hnrwagner
@hnrwagner 3 ай бұрын
@@AE99_Felicis... should work now
@AE99_Felicis...
@AE99_Felicis... 3 ай бұрын
@@hnrwagner Thank you very much.
@milichikini
@milichikini 2 жыл бұрын
Hello Dr. Ronald, I have some questions. 1. When we are doing a buckling analysis we can use the half of the geometry, when it is symmetric?
@hnrwagner
@hnrwagner 2 жыл бұрын
could be use but not if you want to introduce some kind of imperfection
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