Abstract
To simulate not only plastic deformation of a workpiece but also that of a shot in peening processes, the effect of the interaction between the shot and workpiece in the collision is included in the dynamic viscoplastic finite element method. In the formulation, the equilibrium equations of nodal forces and the boundary condition for displacement are simultaneously satisfied under a sliding condition at the interface between the workpiece and shot. Axi-symmetric plastic deformation in peening of a circular workpiece with a single shot is computed. The calculated shapes of the workpiece and the shot are compared with the experimental ones for the workpiece and the shot made from plasticine whose flow stress is controlled by the temperature. It is shown that almost no plastic deformation of the shot occurs under actual shot-peening conditions for steel workpieces when the flow stress ratio of the shot to the workpiece is larger than two.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call