structural analysis inventor

[Luca18]

Hello everyone!
I'm new, and I need some advice.
I'm making a 3d hub design with inventor, and so far all right.
But now I would like to check if the piece is properly sized for the efforts to which it will be subjected.
I press that despite having a good experience with 2d software, it is recently that I use inventor.
I launched an analysis of the stresses, applied the forces in the contact points, defined the material, fixed the constraints where the hub will be fixed with conical screws, made mesh and simulated.
what I do not understand is why I apply 1n of force or 100000n in the final result the deformation of the piece is always the same (see figure) and the areas that in theory should have the greater deformation in the various tests have the same color of areas that in theory are less stressed.
I think the software applies a simulation to the point of material yielding regardless of the input force.
I was interested in understanding in particular whether the six areas close to the contact points (I looked for one in red) resist the stresses to which the piece will be subjected without suffering a plastic deformation or worse a break.
How can I do that? I think it's a trivial thing, but if some pious soul can clarify my ideas? I'd be grateful.
thanks to everyone in advance.

 

[MBT]

ma...
con

.... the deformation of the piece is always the same (see figure)

do you mean that the deformation value (in mm) is the same or that looking at the figure you see the deformed piece always in the same way?? ? ?

 

[Luca18]

Hello, mbt, thank you for the prompt answer.
with deformation in that case I mean looking at the figure. shift values in the ratio change.
besides that I was interested in understanding whether the piece resists or not loads.
Can you tell me how I can see if there's a plastic deformation from the simulation?

 

[MBT]

with deformation in that case I mean looking at the figure. shift values in the ratio change.

They're the ones who text. "visual" deformations are only to understand qualitatively what happens.

besides that I was interested in understanding whether the piece resists or not loads.
Can you tell me how I can see if there's a plastic deformation from the simulation?

eh, look at the voltage values and compare them with the admissible sigma, or go to see the safety coefficient values.

taking the picture you posted and assuming that the values in the definition of the material are correct, you will have a plastic deformation in your piece

 

[Luca18]

by voltage values do you mean the stress values of von mises or the first main stress?
with regard to the value of the safety coefficient is generally greater than 1 except in the red points within the circled part in the figure of the first post in which the value is about 0.7-0.8.
In orange areas, there is almost 2 ul for the safety factor and in others it is abundantly above acceptable values.
say that it can still represent a problem even if the point under the 1 is so small (the red zone)?

 

[MBT]

mah, I am not experienced in fem analysis
for me, if an area goes over the yielding load means "danger"
Then, it lies in the skill of those who did the analysis to convince me that it is not a real danger because that "red point" is due to the connection radius, to the welding bay, to the step of the tool, to the nonsochecosa.. .