Résumé
Abstract :This work presents an experimental and numerical study of the thermo-mechanical problem ofa steel plate impacted by a shot. The temperature rise is estimated and its effect on the compressiveresidual stress is analyzed. The simulations show that the value of the compressive residual stressesat the surface of the plate is modified when thermo-mechanical effects are included in the model ascompared with simulation including hardening effects only. To validate this numerical study, anexperimental device has been developed to measure the temperature rise after the impact. Theexperiment consists of the impact of a shot on a metallic plate. The temperature measurement isperformed by an infrared camera located on the side of the plate opposite to the impact. Comparisonbetween these experimental measurements and the numerical solution gives good agreement (towithin 5%).