A geometrically exact finite beam element formulation for thin film adhesion and debonding
This work presents a nonlinear finite beam element model for thin film adhesion and debonding. The theory accounts for shear-flexible, initially curved beams with varying cross section. Two different adhesion mechanisms are considered: adhesion by body forces and by surface tractions. The new model allows for a very efficient yet accurate description of thin film peeling. This is demonstrated by several examples, focusing on the peeling behavior of gecko spatulae.
nonlinear beam theory cohesive zone modeling computational contact mechanics finite element methods gecko adhesion van der waals interaction