Experiment and smooth particle hydrodynamic modeling of single-grain diamond scribing of silicon carbide fiber reinforced silicon carbide (SiCf/SiC)

The smoothed particle hydrodynamics (SPH) is applied to model the single-grain diamond scribing of the silicon carbide fiber reinforced silicon carbide (SiCf/SiC). Experiments of diamond scribing on SiCf/SiC were performed with three parameters: fiber orientation, depth of cut, and speed of cut. The scribing force and 3D shape diamond tip was measured. The SPH simulation based on JH-2 material model of the SiCf and SiC matrix as well as the experimental modeling is performed. Comparison of SPH-predicted and experimentally measured force identifies parameters for the JH-2 work-material and SPH modeling of SiCf/SiC for accurate prediction of diamond scribing force.