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Similarity rules for the shot peening process based on finite element simulations

: Klemenz, M.; Hochrainer, T.; Delonnoy, L.; Schulze, V.; Vöhringer, O.; Gumbsch, P.

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Schulze, V.:
Shot peening and other mechanical surface treatments
Gournay-Sur-Marne: IITT-International, 2005
International Conference and Exhibition on Shot Peening (ICSP) <9, 2005, Paris>
Conference Paper, Electronic Publication
Fraunhofer IWM ()
finite element analysis; similarity mechanics; residual stresses

Multiple shot impacts are analyzed using a three-dimensional Finite Element model with a user defined temperature- and strain-rate-dependent material formulation. Based on this analysis, a method was developed for the prediction of changes in the material state in areas close to the surface by applying similarity mechanics. This approach provides a tool for the quick estimation of interesting work piece properties after peening especially when a vast field of process parameter variations has to be analyzed. The predictions of the applied similarity mechanics were compared with an explicit Finite Element analysis.