Scale-dependent modeling of joint behavior

Abstract

An investigation of the influence of constitutive friction laws on the damping behavior of dry friction joints is presented. The modeling starts at the micro- scale of the surface roughness leading to constitutive laws with regard to both the normal and tangential contact. These laws are used in a 3D finite element simulation of a simplified model joint. Numerical simulations show the influence of various levels of sophistication of the used contact laws. Here, the influence of high level contact laws proves to be limited in a spatially resolved joint model.