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Short note: Transformation between different solution methods for general axisymmetric tangential contact problems in Hertz-Mindlin approximation
Emanuel Willert
The transition between two conceptionally different solution procedures for general axisymmetric tangential contact problems with arbitrary laoding histories under Hertz-Mindlin as…
The Influence of Compressibility on the Restitution Coefficient for Viscoelastic Spheres in Low-Velocity Normal Impacts
Emanuel Willert, Jean-Emmanuel Leroy, Maciej Satora +1
The influence of compressibility on the coefficient of restitution in the normal impact of a rigid sphere onto a linear-viscoelastic compressible standard solid under quasi-static…
Indentation of concave power law profiles with arbitrary exponents
Valentin L. Popov, Markus Heß, Emanuel Willert +1
We study analytically and numerically the process of indentation of cylindrical rigid indenter with concave face in form of a power-law function. In the well-known case of a parabo…
Detachment of adhesive normal contact between a rigid circular flat punch and a viscoelastic half-space
Emanuel Willert, Valentin L. Popov
We propose an approach to describe the propagation of a crack (or boundary of an adhesive contact) in a viscoelastic material which is only based on the consideration of the rheolo…
Elastic impact of a sphere with an elastic half-space: numerical modeling and comparison with experiment
I. A. Lyashenko, E. Willert, V. L. Popov
Numerical simulations of the dynamics of an elastic collision between a rigid sphere and an elastic half-space are carried out. We assume an Amontons-Coulomb frictional force with…