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WB Ls Dyna PreStress Bird Strike

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Topic starter
(@mr_lazlo)
Barista
Joined: 5 months ago

Hi everyone,

I have been trying to model a prestress bird strike on WB Ls Dyna. But i couldnt find how can i do that.

Firstly I have pressure and thermal loads on the model. Bird strikes to part while it is under the stress.

I saw some examples not detailly but static structural solution is connected to ls dyna setup. There is some point that i didnt get it, when i modeled the bird with SPH how can i constraint and include static solution?

Do you have any idea or example for me ?

thanks.

regards,

mrlazlo

1 Reply




Posts: 36
(@geardyn-1)
Lab Tech
Joined: 4 years ago

@mr_lazlo : there are two methods to impart prestress in lsdyna :

1. Control dynamic relaxtion 

2. Interface springback to get dynain. 

It depends on which method you want to follow, and for further info please refer the following journal: 

https://www.sciencedirect.com/science/article/abs/pii/S2214785320387836

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