Interfacial Competitive Debonding of a Bilayer Elastic Film on a Rigid Substrate

Different from the system of a single-layer elastic film on a rigid substrate, the debonding interface is difficult to determine in a bilayer or multilayer film-substrate system. A peeling model of a bilayer elastic film on a rigid substrate is established in the present paper, in order to predict which interface debonding occurs first. The interfacial competitive debonding mechanism is theoretically analyzed with the help of the beam bending...