Effects of simulation parameters on residual stresses for laser shock peening finite element analysis

Ju Hee Kim, Yun Jae Kim, Joung Soo Kim

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

By using finite element analysis, we proposed an applicable finite element method of laser shock peening (LSP) and discussed various parameters, such as solution time, stability limit, dynamic yield stress, peak pressure, pressure pulse duration, laser spot size, and multiple LSP. The effects of parameters related to the finite element simulation of the LSP process on the residual stresses of 35CD4 30HRC steel alloy are discussed. Parametric sensitivity analyses were performed to establish the optimum processing variables of the LSP process. In addition, we evaluated the effects of initial residual stress, such as welding-induced residual stress field.

Original languageEnglish
Pages (from-to)2025-2034
Number of pages10
JournalJournal of Mechanical Science and Technology
Volume27
Issue number7
DOIs
Publication statusPublished - 2013 Jul 1

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Keywords

  • Ablative layer
  • Dynamic yield strength
  • Finite element analysis (FEA)
  • Infinite element
  • Laser shock peening (LSP)
  • Plasma
  • Shot peening (SP)
  • Water tamping layer

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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