Effect of Overlapping of Peen Spots on Residual Stresses in Laser-Peened Aluminium Sheets

M. Burak Toparli, Michael E. Fitzpatrick

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    In this study, two different laser peening systems were employed to investigate the effect of overlapping on the resulting residual stress fields. For each laser peening system, 2.0-mm-thick aluminium sheets were laser peened with different amounts of overlapping. The residual stresses after laser peening were measured by incremental hole drilling. It was shown for both laser peening systems, that an increase in amount of overlapping induced higher magnitude compressive and deeper residual stress fields.

    Original languageEnglish
    Pages (from-to)1109-1112
    Number of pages4
    JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
    Volume50
    Issue number3
    Early online date8 Jan 2019
    DOIs
    Publication statusPublished - 15 Mar 2019

    Fingerprint

    Aluminum sheet
    peening
    Shot peening
    residual stress
    Residual stresses
    aluminum
    Lasers
    lasers
    stress distribution
    drilling
    Drilling

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys

    Cite this

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    abstract = "In this study, two different laser peening systems were employed to investigate the effect of overlapping on the resulting residual stress fields. For each laser peening system, 2.0-mm-thick aluminium sheets were laser peened with different amounts of overlapping. The residual stresses after laser peening were measured by incremental hole drilling. It was shown for both laser peening systems, that an increase in amount of overlapping induced higher magnitude compressive and deeper residual stress fields.",
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