Hello,

I am trying to find the frictional force between a polyurethane cleaning disk and the inside surface of a steel pipe. The disk is 105% bigger than the inner diameter of the pipe, so it will bent and experience friction when pushed throughout the length of the pipe. Any suggestions on how to approach this problem with an analytical solution?

Also, is there any circular plate deflection theory for hyperelastic material? Probably I can approach the problem using that.