0
research-article

NUMERICAL STUDY OF LASER SHOCK PEENING EFFECTS ON ALLOY 600 NOZZLES WITH INITIAL RESIDUAL STRESSES

[+] Author and Article Information
Ji-Soo Kim

Korea University, Department of Mechanical Engineering Sungbuk-Ku, Seoul 136-701, Korea
rlawltn99@korea.ac.kr

Hyun-Suk Nam

Korea University, Department of Mechanical Engineering Sungbuk-Ku, Seoul 136-701, Korea
gustjr00@korea.ac.kr

Yun-Jae Kim

Korea University, Department of Mechanical Engineering Sungbuk-Ku, Seoul 136-701, Korea
kimy0308@korea.ac.kr

Ju-Hee Kim

Korea Military Academy, Department of Mechanical Engineering P.O.Box 77-1, Seoul, Korea
kjh6452@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4035977 History: Received December 14, 2015; Revised January 15, 2017

Abstract

This paper investigates the effect of initial residual stress and pre-strain on residual stresses due to laser shock peening for Alloy 600 using numerical simulation. For simulation, the strain rate dependent Johnson-Cook hardening model with a Mie-Grüneisen equation of state is used. Simulation results are compared with published experimental data, showing good agreement. It is found that the LSP process is more effective for higher initial tensile residual stress and for larger initial pre-strain in terms of compressive stress at the near surface. However, the effective depth decreases with increasing initial tensile residual stress and initial pre-strain.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In