Adherence of an Axisymmetric Flat Punch on a Thin Flexible Membrane

Abstract An equilibrium theory of adhesion between an axisymmetric flat punch and a thin flexible membrane fixed at its circumference is derived. When the pulling force on the punch exceeds a "pull-off" threshold, a spontaneous delamination occurs at a finite radius leading to a complete separation between the adherends. Experiments on a simple materials system supported the analysis.