Multiple-Shot Impact Model for Vibration-Assisted SMAT Process

YARAR E., ERTÜRK A. T.

9th Annual International Conference on Material Science and Engineering, ICMSE 2021, Virtual, Online, 22 - 24 July 2021, vol.905 KEM, pp.3-8 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 905 KEM
  • Doi Number: 10.4028/www.scientific.net/kem.905.3
  • City: Virtual, Online
  • Page Numbers: pp.3-8
  • Keywords: Finite element method, Multiple-shot impact, Plastic deformation, Residual stress, SMAT
  • Kocaeli University Affiliated: Yes

Abstract

© 2022 Trans Tech Publications Ltd, Switzerland.Surface mechanical attrition treatment enhances the mechanical properties of metallic materials by inducing high strength layer on the top surface. In this study, multiple-shot impact behavior was modeled for the 7075-T6 aluminum alloy to achieve maximum magnitudes of equivalent stress, plastic strain, residual stress depth, and residual stress. Finite element simulations have been carried out to investigate the effect of selected framework on stress and strains in constituent. The plastic deformation process during SMAT was analyzed using ANSYS/AUTODYN explicit dynamic solver according to shot velocity and diameter with a dynamic explicit finite element method (FEM). Deformation behavior was evaluated after multiple-shot impact.