Two different elastic contact stress modeling approaches were compared to results from a flat punch compression experiment. The two approaches, which employed the Greenwood and Williamson contact stress model and the Volume Pixel (“Voxel”) asperity modeling simulation, were used to analyze the force-displacement response of a sample surface when pressed down by a smooth, rigid, flat plane to a prescribed load. The results of the model and simulation are compared to experimental measurements from the flat punch compression performed using a nanoindenter.

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