Effect of Treatment Area on Residual Stress and Fatigue in Laser Peened Aluminum Sheets

M. B. Toparli; Niall Smyth; Michael E. Fitzpatrick

doi:10.1007/s11661-017-3962-8

Effect of Treatment Area on Residual Stress and Fatigue in Laser Peened Aluminum Sheets

M. B. Toparli
, Niall Smyth
, Michael E. Fitzpatrick

College of Engineering, Environment & Science

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

2 Citations (Scopus)

Abstract

Two 2.0-mm-thick aluminum sheets were laser peened and the resulting residual stresses were measured using incremental hole drilling, surface X-ray diffraction, and synchrotron X-ray diffraction techniques. Laser peening was applied to two samples using the same laser peening parameters, but one of the samples has a larger peened area. The aim of this research was to discover the effect of peen area on residual stress, for application in aerospace structures for fatigue life enhancement. It was found that a larger peened area has higher and deeper compressive stresses in the crack-opening direction, leading to greater enhancement of fatigue life.

Original language	English
Pages (from-to)	1519-1523
Journal	Metallurgical and Materials Transactions A
Volume	48
Issue number	4
Early online date	18 Jan 2017
DOIs	https://doi.org/10.1007/s11661-017-3962-8
Publication status	Published - Apr 2017

Bibliographical note

A read only version of the full text is available from: http://rdcu.be/oErp

Access to Document

10.1007/s11661-017-3962-8

http://rdcu.be/oErp

Cite this

@article{741070d590054ed3961300ce1419a3ea,

title = "Effect of Treatment Area on Residual Stress and Fatigue in Laser Peened Aluminum Sheets",

abstract = "Two 2.0-mm-thick aluminum sheets were laser peened and the resulting residual stresses were measured using incremental hole drilling, surface X-ray diffraction, and synchrotron X-ray diffraction techniques. Laser peening was applied to two samples using the same laser peening parameters, but one of the samples has a larger peened area. The aim of this research was to discover the effect of peen area on residual stress, for application in aerospace structures for fatigue life enhancement. It was found that a larger peened area has higher and deeper compressive stresses in the crack-opening direction, leading to greater enhancement of fatigue life.",

author = "Toparli, \{M. B.\} and Niall Smyth and Fitzpatrick, \{Michael E.\}",

note = "A read only version of the full text is available from: http://rdcu.be/oErp ",

year = "2017",

month = apr,

doi = "10.1007/s11661-017-3962-8",

language = "English",

volume = "48",

pages = "1519--1523",

journal = "Metallurgical and Materials Transactions A",

issn = "1543-1940",

publisher = "ASM International",

number = "4",

}

TY - JOUR

T1 - Effect of Treatment Area on Residual Stress and Fatigue in Laser Peened Aluminum Sheets

AU - Toparli, M. B.

AU - Smyth, Niall

AU - Fitzpatrick, Michael E.

N1 - A read only version of the full text is available from: http://rdcu.be/oErp

PY - 2017/4

Y1 - 2017/4

N2 - Two 2.0-mm-thick aluminum sheets were laser peened and the resulting residual stresses were measured using incremental hole drilling, surface X-ray diffraction, and synchrotron X-ray diffraction techniques. Laser peening was applied to two samples using the same laser peening parameters, but one of the samples has a larger peened area. The aim of this research was to discover the effect of peen area on residual stress, for application in aerospace structures for fatigue life enhancement. It was found that a larger peened area has higher and deeper compressive stresses in the crack-opening direction, leading to greater enhancement of fatigue life.

AB - Two 2.0-mm-thick aluminum sheets were laser peened and the resulting residual stresses were measured using incremental hole drilling, surface X-ray diffraction, and synchrotron X-ray diffraction techniques. Laser peening was applied to two samples using the same laser peening parameters, but one of the samples has a larger peened area. The aim of this research was to discover the effect of peen area on residual stress, for application in aerospace structures for fatigue life enhancement. It was found that a larger peened area has higher and deeper compressive stresses in the crack-opening direction, leading to greater enhancement of fatigue life.

U2 - 10.1007/s11661-017-3962-8

DO - 10.1007/s11661-017-3962-8

M3 - Editorial

SN - 1543-1940

SN - 2379-0180

VL - 48

SP - 1519

EP - 1523

JO - Metallurgical and Materials Transactions A

JF - Metallurgical and Materials Transactions A

IS - 4

ER -

Effect of Treatment Area on Residual Stress and Fatigue in Laser Peened Aluminum Sheets

Abstract

Bibliographical note

Access to Document

Fingerprint

Cite this