Transient contact between a sphere and a moving flat is investigated using finite element analysis. The sphere is assumed to be rigid while the flat is treated as an elastic-plastic body with isotropic hardening. Temperature and strain distributions of the sphere and the flat are obtained as a function of the vertical initial velocity of the sphere, the coefficient of friction between the sphere and the flat, and the tangential velocity of the flat. In addition, dimensionless solutions are presented for the maximum temperature rise and the maximum residual penetration as a function of the dimensionless vertical initial velocity of the sphere. The numerical solutions are independent of material properties and sphere radius, and can be applied to minimize data loss of the slider disk interface during slider-disk contacts.

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