Abstract
This study proposes a simple method for simulating contacts with curved edges. It develops a fast correction approach to eliminate the errors introduced on curved free surfaces by the half-space assumption in semi-analytical methods. The complete procedure first defines a counterbalance radius to eliminate the shear stress generated on free surfaces, and then introduces a correction factor for the counterbalance load to account for the normal stresses generated on free surfaces. A comparison with FEA results shows a 92% improvement after applying the shear correction and a greater-than-96% improvement after applying the complete correction (shear and normal stresses). Computational costs are also significantly lower than those required by FEA, and are at least 9 times so for the studied cases.
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