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Adhesion of multilayered materials

Antonio Papangelo's picture

Adhesion is a key factor in many tribological processes, especially wear. We generalize a recent formulation for the indentation of a multilayered material using an efficient integral transform method, to the case of adhesion, using a simple energetic transformation in the JKR regime. Then, we specialize the study for the geometry of the Surface Force Apparatus, which consists of two thin layers on a substrate, where the intermediate layer is softer than the other two. We find the pull-off force under "force control" (i.e. for "soft" loading systems), as well as under "displacement control" (i.e. for "rigid" systems), as a function of the geometrical thicknesses and material properties ratios, and the method is fully implemented in a fast Mathematica code, available to the public (see Appendix).

https://www.researchgate.net/profile/Antonio_Papangelo

https://www.researchgate.net/publication/332072552_On_adhesive_theories_in_multilayered_interfaces_with_particular_regard_to_surface_force_apparatus_geometry

 

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