Influence of the target material constitutive model on the numerical simulation of a shot peening process

Study of the effects produced by shot peening on the surface of quenched and tempered steels: roughness, residual stresses and work hardening

“…Anyway, in order to attain the final goal on these surface treatments and specifically in the case of shot peening, it would be convenient to have a tool able to foresee the main effects of any treatment in order to select the most appropriate parameters for optimizing it. Numerous experimental and theoretical studies have been performed along these lines to improve the state of knowledge of shot peening and better understand its effects [9,[22][23][24][25][26][27][28].…”

Investigation of indentation-, impact- and scratch-induced mechanically affected zones in a copper single crystal

“…creation of compressive residual stress fields [17][18][19] or refinement of the micro-structure [20,21] without any thermal or chemical phenomena. We distinguish treatments based on normal or quasi-normal contacts (like indentation, impact) such as shot peening [22][23][24][25][26] or hammering, and treatments based on tangential contacts (like scratching) such as burnishing [27][28][29] and polishing [30,31]. The understanding of the response to such contact loading types in terms of residual stress or in terms of induced microstructure changes is of primary importance in the context of the optimization of surface mechanical treatments.…”

Literature review of numerical simulation and optimisation of the shot peening process

“…Cyclic behaviour of the target material also has influential effects on the distribution of the induced residual stresses. 8 Both Sanjurjo et al 8 and Klemenz et al 41 found that exclusion of cyclic behaviour to a material model resulted in overestimation of residual stresses. In support of this, another investigation showed that the surface regions of the target material experienced arbitrary cyclic loadings and these loadings must not be neglected 53 since they could cause relaxation to the residual stresses induced by previous impacts.…”

“…65,66 In multiple impact simulation, the target material encounters repeated impacts, hence cyclic loading occurs. 8 The mechanism to how cyclic behaviour affects the distribution of residual stresses is that the induced residual stresses can be relaxed by subsequent cyclic loadings that the target material undergoes during SP. Some research also showed congruent results.…”