Finite Element Analysis of Laser Peening of Thin Aluminum Structures

Kristina Langer, T. Spradlin, Michael Fitzpatrick

Research output: Contribution to journalArticle

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Abstract

Laser shock peening has become a commonly applied industrial surface treatment, particularly for high-strength steel and titanium components. Effective application to aluminum alloys, especially in the thin sections common in aerospace structures, has proved more challenging. Previous work has shown that some peening conditions can introduce at-surface tensile residual stress in thin Al sections. In this study, we employ finite element modeling to identify the conditions that cause this to occur, and show how these adverse effects can be mitigated through selection of peen parameters and patterning.
Original languageEnglish
Article number93
Number of pages16
JournalMetals
Volume10
Issue number1
DOIs
Publication statusPublished - 6 Jan 2020

Fingerprint

Shot peening
Aluminum
Finite element method
Lasers
Titanium
High strength steel
Tensile stress
Surface treatment
Aluminum alloys
Residual stresses

Bibliographical note

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Keywords

  • Aluminum alloys
  • Laser peening
  • Residual stress

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Finite Element Analysis of Laser Peening of Thin Aluminum Structures. / Langer, Kristina; Spradlin, T.; Fitzpatrick, Michael.

In: Metals, Vol. 10, No. 1, 93, 06.01.2020.

Research output: Contribution to journalArticle

Langer, Kristina ; Spradlin, T. ; Fitzpatrick, Michael. / Finite Element Analysis of Laser Peening of Thin Aluminum Structures. In: Metals. 2020 ; Vol. 10, No. 1.
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