... contact stiffness-based model representing the elastic and plastic deformation of the material is used to obtain the coefficient of restitution during the impact of a sphere on a deformable substrate. The model consists of the Maxwell combination of perfectly plastic component and a non-linear elastic...

... nonlinearities in viscoplastic presliding contacts. presliding contacts contact stiffness nonlinear energy dissipation viscoplasticity friction computational mechanics vibration Finite sliding, surface-to-surface interaction was used to define the contact at the interface of indenter and HDPE...

...Jungkyu Lee; Ali Beheshti; Andreas A. Polycarpou This work presents experimental contact stiffness measurements for various thin films as well as homogenous materials through pressing a flat punch onto a nominally flat rough surface. These materials are typically used in micro/nano technological...