A correction on the calculation of frictional dissipation in planar impact of rough compliant bodies by W.J. Stronge

In the paper published by W.J. Stronge (Int. J. Impact Eng. 1994;15(4):435–50), a lumped parameter model of contact between colliding bodies has been employed to calculate the tangential contact force and energy dissipated by friction in planar impact of rough compliant bodies. The formulation of frictional energy loss was based on the work done by tangential force on the tangential motion of the body during slip process. However, this formulation seems to be incorrect since it results in an inappropriate explanation for the conservation of energy during the whole process of collision when the angles of incidence are small or intermediate. In this paper, the cause of inaccuracy and the corrected formulation and calculation of the frictional dissipation in collinear collisions are presented.