Fusion 360 Simulation : Component move through others

[Anonymous]

Hello, I am new to Fusion and I am currently trying to apply static stresses on a assembly I designed (linked to this post).

The problem is : when I try to apply a static stress on the top of the box (with a standardized component, used to apply the stress in reality), my main box pass through the ground and the two little boxes (linked to the main box and directly on contact with  the ground) don't move. 

I am truly sorry if my explanation was bad, please feel free to ask details if needed.

And thank you for your time

PS : sorry for my bad english

                                                     Julien

[rushabhthakkar_910 · Accepted solution]

A few resources that can help you out... 

1. https://academy.autodesk.com/fusion-360-simulation-course-series 
2. https://www.youtube.com/watch?v=bZnHQTPP-Ps
3. https://www.youtube.com/watch?v=GmommYU9lyU 
4. https://www.autodesk.com/products/fusion-360/blog/start-learning-fusion-360-simulation/  

[TheCADWhisperer · Accepted solution]

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@Anonymous wrote:

...my main box pass through the ground

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Usually the deformation is so small that it is exaggerated so that it can be seen.

In this case 

reduce the load to a reasonable amount

set the Display to Actual (rather than exaggerated).

I would probably remove the test fixture from the analysis altogether and use Split Faces on the part you are testing for the constraint and load. I would also remove the physical fasteners from the analysis and use Bolt Connector constraints/contacts instead.

[Anonymous]

Thank you Rushabh for your help !

I already watched the first video when I was getting started but the advanced one looks interesting, I will watch it later. 

Have a nice day and thank you again !

Julien 

[Anonymous]

Thank you for your answer !

But do you know why, when I set high loads like here, the main box passes through the ground even in the actual deformation view ? Shouldn't it crash on the ground with a huge deformation instead ?

I also tried to use the bolt connectors but I still had the same issue.

Thank you again for your time and your consideration, have a nice day !

Julien

[JDMather · Accepted solution]

Linear elastic static stress limited to relatively small displacements (and of course, within the linear elastic stress range SF > 1).

Thin feature might also be a consideration (no extreme aspect ratio in geometry).

[Anonymous]

Thank you !