Numerical Study of Laser Shock Peening Effects on Alloy 600 Nozzles with Initial Residual Stresses

Ji Soo Kim; Hyun Suk Nam; Yun-Jae Kim; Ju Hee Kim

doi:10.1115/1.4035977

Numerical Study of Laser Shock Peening Effects on Alloy 600 Nozzles with Initial Residual Stresses

Ji Soo Kim, Hyun Suk Nam, Yun-Jae Kim, Ju Hee Kim

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

This paper investigates the effect of initial residual stress and prestrain 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 laser shock peening (LSP) process is more effective for higher initial tensile residual stress and for larger initial prestrain in terms of compressive stress at the near surface. However, the effective depth decreases with increasing initial tensile residual stress and initial prestrain.

Original language	English
Article number	041406
Journal	Journal of Pressure Vessel Technology, Transactions of the ASME
Volume	139
Issue number	4
DOIs	https://doi.org/10.1115/1.4035977
Publication status	Published - 2017 Aug 1

Bibliographical note

Publisher Copyright:
© 2017 by ASME.

Keywords

Alloy 600 penetration nozzle
Laser shock peening
primary water stress corrosion cracking (PWSCC) mitigation
welding residual stress

ASJC Scopus subject areas

Safety, Risk, Reliability and Quality
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1115/1.4035977

Cite this

@article{26a002e68f2f444a9edd2262c9f85101,

title = "Numerical Study of Laser Shock Peening Effects on Alloy 600 Nozzles with Initial Residual Stresses",

abstract = "This paper investigates the effect of initial residual stress and prestrain 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-Gr{\"u}neisen equation of state is used. Simulation results are compared with published experimental data, showing good agreement. It is found that the laser shock peening (LSP) process is more effective for higher initial tensile residual stress and for larger initial prestrain in terms of compressive stress at the near surface. However, the effective depth decreases with increasing initial tensile residual stress and initial prestrain.",

keywords = "Alloy 600 penetration nozzle, Laser shock peening, primary water stress corrosion cracking (PWSCC) mitigation, welding residual stress",

author = "Kim, {Ji Soo} and Nam, {Hyun Suk} and Yun-Jae Kim and Kim, {Ju Hee}",

note = "Publisher Copyright: {\textcopyright} 2017 by ASME.",

year = "2017",

month = aug,

day = "1",

doi = "10.1115/1.4035977",

language = "English",

volume = "139",

journal = "Journal of Pressure Vessel Technology, Transactions of the ASME",

issn = "0094-9930",

publisher = "American Society of Mechanical Engineers (ASME)",

number = "4",

}

TY - JOUR

T1 - Numerical Study of Laser Shock Peening Effects on Alloy 600 Nozzles with Initial Residual Stresses

AU - Kim, Ji Soo

AU - Nam, Hyun Suk

AU - Kim, Yun-Jae

AU - Kim, Ju Hee

PY - 2017/8/1

Y1 - 2017/8/1

N2 - This paper investigates the effect of initial residual stress and prestrain 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 laser shock peening (LSP) process is more effective for higher initial tensile residual stress and for larger initial prestrain in terms of compressive stress at the near surface. However, the effective depth decreases with increasing initial tensile residual stress and initial prestrain.

AB - This paper investigates the effect of initial residual stress and prestrain 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 laser shock peening (LSP) process is more effective for higher initial tensile residual stress and for larger initial prestrain in terms of compressive stress at the near surface. However, the effective depth decreases with increasing initial tensile residual stress and initial prestrain.

KW - Alloy 600 penetration nozzle

KW - Laser shock peening

KW - primary water stress corrosion cracking (PWSCC) mitigation

KW - welding residual stress

UR - http://www.scopus.com/inward/record.url?scp=85018637585&partnerID=8YFLogxK

U2 - 10.1115/1.4035977

DO - 10.1115/1.4035977

M3 - Article

AN - SCOPUS:85018637585

SN - 0094-9930

VL - 139

JO - Journal of Pressure Vessel Technology, Transactions of the ASME

JF - Journal of Pressure Vessel Technology, Transactions of the ASME

IS - 4

M1 - 041406

ER -

Numerical Study of Laser Shock Peening Effects on Alloy 600 Nozzles with Initial Residual Stresses

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this