FINITE ELEMENT METHOD FOR MODELING OF REAL ROUGH SURFACE

The surface geometry of the material is complicated to be determined. Numerical contact simulations of surface roughness are commonly performed by a simple model of asperities, however, most models use broad assumptions to determine the shape and size of asperity. This study presents a method for producing deterministic rough surfaces in ABAQUS by pre-processing on SOLIDWORKS using the curved wizard method. Random geometry of real surface roughness and rigid smooth balls was contacted in the simulation using finite element analysis. The outcomes were presented in the contact areas and surface topographic plots. Afterwards, the experimental results were compared to form the surface roughness of the finite element. The simulation results using the curved wizard method showed that the contact area and surface topography were identical to the experimental results on the y-axis at x = 288 m. This technique was combined with the model of real surfaces in ABAQUS, provided the surface roughness that is identical to the real surfaces. The deformed and undeformed topographic results were also identical to the actual experimental results with an error of 4.3%. The contact area that occurs is also the same as the experimental results.