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Three-dimensional Finite Element modelling of laser shock peening process

journal contribution
posted on 2007-10-02, 00:00 authored by Chunhui Yang, Peter HodgsonPeter Hodgson, Q Liu, L Ye
Laser shock peening (LSP) is an innovative surface treatment technique for metal alloys, with the great improvement of their fatigue, corrosion and wear resistance performance. Finite element method has been widely applied to simulate the LSP to provide the theoretically predictive assessment and optimally parametric design. In the current work, 3-D numerical modelling approaches, combining the explicit dynamic analysis, static equilibrium analysis algorithms and different plasticity models for the high strain rate exceeding 106s-1, are further developed. To verify the proposed methods, 3-D static and dynamic FEA of AA7075-T7351 rods subject to two-sided laser shock peening are performed using the FEA package–ABAQUS. The dynamic and residual stress fields, shock wave propagation and surface deformation of the treated metal from different material modelling approaches have a good agreement.

History

Journal

Materials science forum

Volume

561-565

Pagination

2261 - 2264

Publisher

Trans Tech Publications

Location

Aedermannsdorf, Switzerland

ISSN

0255-5476

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2007, Trans Tech Publications