Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy

S. Zabeen; M. Preuss; P. J. Withers; S. Spanrad; J. Tong; J. Schofield

doi:10.4028/www.scientific.net/MSF.652.19

Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy

S. Zabeen, M. Preuss, P. J. Withers, S. Spanrad, J. Tong, J. Schofield

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

8 Citations (Scopus)

Abstract

The current study investigates the effect of foreign object damage (FOD) on the preexisting compressive residual stress field associated with laser shock peening (LSP) and its evolution upon combined LCF/HCF cycling. FOD was introduced onto an aerofoil-shaped specimen that had been previously LSP treated through ballistic impacts at angles of 0° and 45° to the leading edge. It is shown that the FOD notch created by 45° impact was asymmetric in shape and smaller in depth compared to that created at 0° impact. Significant through thickness compression was introduced parallel to the leading edge as a result of the LSP process. The residual strain distribution was mapped around the FOD notch by synchrotron X-ray radiation. The results show predominantly compressive stresses ahead of the notch, being greater for the 0° compared to 45° impact. No significant stress relaxation was observed after a combined (1000 HCF cycles superimposed on 1 LCF cycle) cycle.

Original language	English
Title of host publication	Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation
Publisher	Trans Tech Publications
Pages	19-24
Number of pages	6
ISBN (Print)	0878492585, 9780878492589
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.652.19
Publication status	Published - 2010
Externally published	Yes
Event	International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS V) - Mito, Japan Duration: 10 Nov 2009 → 12 Nov 2009 Conference number: 5th

Publication series

Name	Materials Science Forum
Volume	652
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS V)
Abbreviated title	MECA SENS V
Country/Territory	Japan
City	Mito
Period	10/11/09 → 12/11/09

Keywords

Foreign object damage (FOD)
Laser Shock Peening (LSP)
LCF/HCF
Residual stress
Ti-6Al-4V

Access to Document

10.4028/www.scientific.net/MSF.652.19

Cite this

Zabeen, S., Preuss, M., Withers, P. J., Spanrad, S., Tong, J., & Schofield, J. (2010). Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy. In Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (pp. 19-24). (Materials Science Forum; Vol. 652). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/MSF.652.19

@inproceedings{045fb48bc4024f6da48f474c310b99ca,

title = "Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy",

abstract = "The current study investigates the effect of foreign object damage (FOD) on the preexisting compressive residual stress field associated with laser shock peening (LSP) and its evolution upon combined LCF/HCF cycling. FOD was introduced onto an aerofoil-shaped specimen that had been previously LSP treated through ballistic impacts at angles of 0° and 45° to the leading edge. It is shown that the FOD notch created by 45° impact was asymmetric in shape and smaller in depth compared to that created at 0° impact. Significant through thickness compression was introduced parallel to the leading edge as a result of the LSP process. The residual strain distribution was mapped around the FOD notch by synchrotron X-ray radiation. The results show predominantly compressive stresses ahead of the notch, being greater for the 0° compared to 45° impact. No significant stress relaxation was observed after a combined (1000 HCF cycles superimposed on 1 LCF cycle) cycle.",

keywords = "Foreign object damage (FOD), Laser Shock Peening (LSP), LCF/HCF, Residual stress, Ti-6Al-4V",

author = "S. Zabeen and M. Preuss and Withers, {P. J.} and S. Spanrad and J. Tong and J. Schofield",

year = "2010",

doi = "10.4028/www.scientific.net/MSF.652.19",

language = "English",

isbn = "0878492585",

series = "Materials Science Forum",

publisher = "Trans Tech Publications",

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Zabeen, S, Preuss, M, Withers, PJ, Spanrad, S, Tong, J & Schofield, J 2010, Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy. in Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation. Materials Science Forum, vol. 652, Trans Tech Publications, pp. 19-24, International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS V), Mito, Japan, 10/11/09. https://doi.org/10.4028/www.scientific.net/MSF.652.19

Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy. / Zabeen, S.; Preuss, M.; Withers, P. J. et al.
Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation. Trans Tech Publications, 2010. p. 19-24 (Materials Science Forum; Vol. 652).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

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AU - Zabeen, S.

AU - Preuss, M.

AU - Withers, P. J.

AU - Spanrad, S.

AU - Tong, J.

AU - Schofield, J.

N1 - Conference code: 5th

PY - 2010

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N2 - The current study investigates the effect of foreign object damage (FOD) on the preexisting compressive residual stress field associated with laser shock peening (LSP) and its evolution upon combined LCF/HCF cycling. FOD was introduced onto an aerofoil-shaped specimen that had been previously LSP treated through ballistic impacts at angles of 0° and 45° to the leading edge. It is shown that the FOD notch created by 45° impact was asymmetric in shape and smaller in depth compared to that created at 0° impact. Significant through thickness compression was introduced parallel to the leading edge as a result of the LSP process. The residual strain distribution was mapped around the FOD notch by synchrotron X-ray radiation. The results show predominantly compressive stresses ahead of the notch, being greater for the 0° compared to 45° impact. No significant stress relaxation was observed after a combined (1000 HCF cycles superimposed on 1 LCF cycle) cycle.

AB - The current study investigates the effect of foreign object damage (FOD) on the preexisting compressive residual stress field associated with laser shock peening (LSP) and its evolution upon combined LCF/HCF cycling. FOD was introduced onto an aerofoil-shaped specimen that had been previously LSP treated through ballistic impacts at angles of 0° and 45° to the leading edge. It is shown that the FOD notch created by 45° impact was asymmetric in shape and smaller in depth compared to that created at 0° impact. Significant through thickness compression was introduced parallel to the leading edge as a result of the LSP process. The residual strain distribution was mapped around the FOD notch by synchrotron X-ray radiation. The results show predominantly compressive stresses ahead of the notch, being greater for the 0° compared to 45° impact. No significant stress relaxation was observed after a combined (1000 HCF cycles superimposed on 1 LCF cycle) cycle.

KW - Foreign object damage (FOD)

KW - Laser Shock Peening (LSP)

KW - LCF/HCF

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BT - Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation

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T2 - International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS V)

Y2 - 10 November 2009 through 12 November 2009

ER -

Zabeen S, Preuss M, Withers PJ, Spanrad S, Tong J, Schofield J. Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy. In Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation. Trans Tech Publications. 2010. p. 19-24. (Materials Science Forum). doi: 10.4028/www.scientific.net/MSF.652.19

Synchrotron strain mapping of the residual strain distribution around foreign object damage in laser shock peened Ti-6AL-4V alloy

Abstract

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Keywords

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