Hi, coworkers! I have modeled a capacitance sensor with 1 top electrode and 4 bottom electrodes (Fig 1). The sensor is placed on a substrate, and a stick is going to contact and press it from the top. I have used to Solid Mechanics interface to do the stationary study.
I set a contact pair between stick and top electrode, and fix the position of the substrate. However, the dielectric material, which is between top and bottom electrode, will be squeezed into the interval of bottom electrodes and 'penestrate through the substrate'(Fig 2). This penestration won't happen in real world and is unwanted in the simulation.
As I know, the contact pair can define a pair of boundaries which can not penestrate each other, and I have tried to create a pair between dielectric and substrate. However, after many trials, the penestration still remains to be solved.
Could someone tell me how should i do with this situation? Sincerely thanks!