Abstract
Multiple impact models to examine the effect of stress intcrlercncc arc proposed alld illvcstigated. The single shot model analysis, which used various shot ball conditions. was carricd oul to compare with multiple impacts analysis. Then the multiplc impact analysis were performed to predict the crlect of the shot ball distances. The results showed that the stress interference in the multiple impact model significantly reduced the maximum value of the compressive residual stresses. The rcsidual strcss protiJes were strongly effected by the shot ball distances. The Illultiple impact model can simulatc a realistic shot peening process rather than a single shot model does. It is concluded that the proposed Illodel predicts the real process more accurately.<br/>
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