Investigation of Surface Integrity by Molecular Dynamics Simulation

Abstract

Difficulties in measurements at the abrasive/work contact when machining materials, as well as in determining the integrity of machined surfaces, have led to an increased attention in Molecular Dynamics (MD) simulation as it can provide a more detailed insight in the process and the machined surface. By means of MD simulation, the possibility to investigate the influence of abrasive processes on the integrity of machined surfaces will be discussed. The surface integrity will be described in terms of dislocation building, surface roughness, residual stresses, and crack initiation in particular. For the first time, it was possible to simulate crack initiation in indentation on brittle materials.