Hello
I am currently simulating in an assembly under solidworks simulation in nonlinear static analysis, the contact between 2 parts, a deformable fixed part and a moving part whose Young's modulus is very large compared to the fixed part. Which brings me to the next question: Can we get a value of the contact area between these two parts in solidworks simulation, evaluation mode perhaps?
Thank you in advance for your answer(s)
Have a nice day.
Hello
Could you post even a partial image of the deformed area?
I've never asked the question actually, your question is interesting. :-)
If the function does not exist, the difficulty can be circumvented. It all depends on the precision you want.
Hello Zozo_mp,
Sorry for the late reply, here is an image of the deformed area (radial displacement) attached. I took all the coordinates of the nodes of the two parts along the axis of displacement and then subtracted their respective values so that when the difference is zero (to within 0.5mm) I consider that there is contact. The problem still persists since I am looking for the contact area.
By the way, I wonder about the SOlidworks contact algorithm, how does it work in "no penetration" mode?
If you manage the contact between the 2 parts you can actually see the contact pressures in the results.
You have to create a new stress display and select 'contact pressure'.
It's not super readable though: you have arrows of varying lengths and color depending on the pressure. It's worth varying the display settings so that it's readable (300% on the lengths is the maximum for me generally)
Hello mtnftn95
you say [[ the contact between 2 parts, a deformable fixed one and a mobile one whose Young's modulus is very large compared to the fixed part. Thus, the fixed part deforms and follows the shape of the more rigid part. ]]
I guess you unchecked, ignore the game and above all set up the game as well as its value , which is very important in your case.
Hello, thank you Froussel it helps me for my analysis of results but to evaluate the contact surface it remains complicated (see attached image)
Zozo_mp, I didn't take into consideration the game, do you think it affects the results? If so, where and how should I pay it?
Thank you
Hello
Yes, I think it has an influence as soon as you are in the big travel zone.
The principle is as follows: a part of the AA part comes into contact after deformation with the second BHé part.
As you are without penetration the stone will stop at the first contact, and the second offset part of your AA piece will not be distorted.
It's like a stairway , either you say that SW can only climb one step (the first deformation) and can't climb the second.
So you won't have the deformation to go to the second. On the other hand, the setting of the clearance allows us to say that the second step (which is for example 3mm) can be reached at 3mm if the effort is sufficient but cannot go beyond 3mm. If it's beyond that, it means that the settings of your simu are not correct.
If, on the other hand, you know the distance between the first step and the second (easy to measure the distance before deformation) it is this value that you should put in the setting.
In other words, it's like telling SW how I put you without penetration as soon as you get to the first contact, don't stop and try to continue to deform the part, but within the limit I set for you, which is 3mm (in my example).
This is also very useful when it is known that a part will deform voluntarily during clamping (in the case of tightness or controlled deformation).
Kind regards
The "capturelynkoa2.png" image shows 2 contact zones, one of which is red. For me, the meshes are not fine enough to properly analyze the contact. A local surface must be cut (SW surface tool) and the mesh must be refined on these two local surfaces so that the contact obtained by the calculation is 'clean'.
it is not uncommon for SW simulation to hook/glue a knot on the opposite surface when calculating the contacts, in this case you get an ultra-localized red peak that is clearly unrealistic and can totally distort your analysis.
+1 with @froussel
you have values that go from minimum to maximum in less than 2 knots! We can't conclude anything about the result except that your modeling is running!
We need to refine the mesh in this area!