Aim is the description of the normal and tangential contact behavior of metal surfaces by constitutive contact laws which are suitable for the application in numerical simulation tools like the finite element method.
Starting point is the measurement, description and characterisation of rough surfaces at the micro scale and the subsequent simulation of the deformation behavior of the surface rough roughness by an elasto-plastic halfspace model, which takes into account lubrication and coatings.
From the halfspace simulations, constitutive contact laws can be identified, whih represent the homogenized behavior on the macroscale and can be experimentally verified at this scale.
Applications can be found in forming simulations, the modelling of energy dissipation in joints and the simulation of lamination stacks in electrical machines.