Separating Contact Result

YYF

Hi all,

Wanna ask for the reactions of the separating contact.
I am trying to get the reaction force on the wheels (represented by blocks).
Below is my setup, and force is applied onto the cantilever.

1. From the displacement in Y, the blocks at the front actually sink below the rigid ground.
But why would it be?
Shouldn't it be the separating contact only allows the blocks to separate from ground, which is going upwards?
And I made the ground and the blocks rigid bodies, which they shouldn't deform.

 

2. Why from the slippage and normal traction contact response, my front block only has one line that is having complete opposite result?
Shouldn't it be the whole surface having the same since the blocks are in rigid bodies?

 

Attached is the close up image of the blocks deformation.

 

3. Are we able to specify the direction of the separating contact?
As although I am setting the contact as separating, my gate still passes through the stopper.

 

 

 

 

Thanks in advance.

Bookmark 1.png

GirishM

It is not clear from the images, but if the separating contact is defined between the structure and the blocks, the results look expected with the bending loads applied.

Separating contact acts like a nonlinear contact with zero clearance, so it is assumed the parts are connected at the beginning of analysis, but can move away from each other if the load is applied appropriately.

If the model can be shared, we can take a closer look.