Adhesion and Decohesion of Indenting Ball

Application ID: 42421


A steel ball is pressed down against a rubber membrane. When the contact pressure exceeds a certain value, the two parts start sticking together.

When the ball is retracted, the membrane is pulled upwards in the bonded region. During the retraction, the bond is partially broken. This happens when the stresses exceed the limits specified in the decohesion law.

This model example illustrates applications of this type that would nominally be built using the following products:

MEMS Module Nonlinear Structural Materials Module Structural Mechanics Module