کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1585597 | 1514918 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Finite element modelling of shot peening process: Prediction of the compressive residual stresses, the plastic deformations and the surface integrity Finite element modelling of shot peening process: Prediction of the compressive residual stresses, the plastic deformations and the surface integrity](/preview/png/1585597.png)
This paper presents a numerical simulation of the shot peening process using finite element method. The majority of the controlling parameters of the process have been taken into account. The shot peening loading has been characterised by using energy equivalence between the dynamic impact and a static indentation of a peening shot in the treated surface. The behaviour of the subjected material is supposed to be elastic plastic with damage. An integrated law of the damage proposed by Lemaître and Chaboche has been used. The proposed model leads to obtain the residual stress, the plastic deformation profiles and the surface damage. An application on a shot peened Ni-based super alloy Waspaloy has been carried out. The comparison of the residual stresses, obtained by X-ray diffraction method and by finite element calculation, shows a good correlation. The in-depth profile of the plastic deformations and the superficial damage values are in good agreement with the experimental observations.
Journal: Materials Science and Engineering: A - Volume 426, Issues 1–2, 25 June 2006, Pages 173–180