Optimising Shot Peening Parameters Using Finite Element and Discrete Element Analysis

Abstract:

Shot peening is a cold-work process in which a stream of small spherical shot is blasted against a metallic component to generate a high compressive residual stress regime at the surface of the target. This paper presents a computational modelling of the shot peening process, in which the finite element (FE) method was employed to study the elastic-plastic dynamic process of the shot impact on a metallic target, and the discrete element (DE) method was used to study the multiple particles dynamics. Statistical analyses of the shot impact data reveal the relationships between peening process parameters and peening intensity, which can be used to optimise these process parameters to produce an improved outcome.

• Periodical: Applied Mechanics and Materials (Volumes 10-12)
• Pages: 493-497
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.10-12.493
• Online since: December 2007
• Authors: Tao Hong, Dong Hui Wen, Ju Long Yuan
• Keywords: Compressive Residual Stress, Discrete Element, Finite Element, Shot Peening

References

[1] S.A. Meguid, G. Shagal, J.C. Stranart and et al: Finite Elements in Analysis and Design Vol. 31 (1999), pp.179-191.

DOI: 10.1016/s0168-874x(98)00057-2

[2] S.A. Meguid, G. Shagal and J.C. Stranart: International Journal of Impact Engineering, Vol. 27 (2002), pp.119-134.

[3] E. Rouhaud and D. Deslaef: Materials Science Forum, Vol. 404-407 (2002), pp.153-158.

DOI: 10.4028/www.scientific.net/msf.404-407.153

[4] P.A. Cundall and O.D.L. Strack: Geotechnique, vol. 29 (1979), pp.47-65.

[5] K. Han, D. Peric, A.J.L. Crook and D.R.J. Owen: Engineering Computations, Vol. 17 (2000), pp.593-619.

[6] K. Han, D. Peric, D.R.J. Owen and J. Yu: Engineering Computations, Vol. 17 (2000), pp.680-702.

[7] T. Hong, J.Y. Ooi and B.A. Shaw: submitted to Advances in Engineering Software, (2006).

[8] T. Hong, J.Y. Ooi and B.A. Shaw: submitted to Computers and Structures, (2006).