The purpose of this work is to investigate mechanism of anisotropic residual stress generation in laser peening. Residual stress induced by multiple pulse irradiation is simulated using stress distribution of single pulse. Contribution of each irradiation spot to the stress field is assumed to be additive, and the Mises yield condition is considered as constraint for the field addition process. The result explains well the anisotropic stress generation. The model can be applied to optimize the residual stress field.

1.
Fabbro
,
R.
,
Peyre
,
P.
,
Berthe
,
L.
 &
Scherpereel
,
X.
 (
1998
)
Physics and applications of laser-shock processing
,
J. Laser Appl.
10
,
265
–
279
.
https://doi.org/10.2351/1.521861
Google Scholar
Crossref
Search ADS
 
2.
Fairand
,
B. P.
,
Wilcox
,
B. A.
,
Gallagher
,
W. J.
 &
Williams
,
D. N.
 (
1972
)
Laser shock-induced micro-structural and mechanical property changes in 7075 aluminum
,
J. Appl. Phys.
43
,
3893
–
3895
.
https://doi.org/10.1063/1.1661837
Google Scholar
Crossref
Search ADS
 
3.
Clauer
,
A. H.
,
Fairand
,
B. P.
 &
Wilcox
,
B. A.
 (
1977
)
Pulsed Laser Induced Deformation in an Fe-3 Wt Pct Si Alloy
,
Metall. Trans. A
8A
,
119
–
125
.
https://doi.org/10.1007/BF02677273
Google Scholar
Crossref
Search ADS
 
4.
Fairand
,
B. P.
 &
Clauer
,
A. H.
 (
1979
)
Laser generation of high-amplitude stress waves in materials
,
J. Appl. Phys.
50
,
1497
–
1502
.
https://doi.org/10.1063/1.326137
Google Scholar
Crossref
Search ADS
 
5.
Berthe
,
L.
,
Fabbro
,
R.
,
Peyre
,
P.
,
Tollier
,
L.
 &
Bartnicki
,
E.
 (
1997
)
Shock waves from a water-confined laser-generated plasma
,
J. Appl. Phys.
82
,
2826
–
2832
.
https://doi.org/10.1063/1.366113
Google Scholar
Crossref
Search ADS
 
6.
Sano
,
Y.
,
Kimura
,
M.
,
Sato
,
K.
,
Obara
,
M.
,
Sudo
,
A.
,
Hamamoto
,
Y.
,
Shima
,
S.
,
Ichikawa
,
Y.
,
Yamazaki
,
H.
,
Naruse
,
M.
,
Hida
,
S.
,
Watanabe
,
T.
 &
Oono
,
Y.
 (
1998
)
Development and Application of Laser Peening System to Prevent Stress Corrosion Cracking of Reactor Core Shroud
, in
Proceedings of 8th Int. Conf. on Nuclear Engineering (ICONE-8)
, Paper No.8441.
Google Scholar
 
7.
Dane
,
C. B.
,
Hackel
,
L. A.
,
Daly
,
J.
 &
Harrison
,
J.
 (
1998
)
High Power Laser for Peening of Metals Enabling Production Technology
,
Report No. UCRL-JC-131104 Rev 1
,
Lawrence Livermore National Laboratory
,
Livermore, CA
.
Google Scholar
 
8.
Mukai
,
N.
,
Aoki
,
N.
,
Obara
,
M.
,
Ito
,
A.
,
Sano
,
Y.
 &
Konagai
,
C.
 (
1995
)
Laser Processing for Underwater Maintenance in Nuclear Plants
, in
Proceedings of 3rd JSME/ASME Joint Int. Conf. on Nuclear Engineering (ICONE-3
),
1489
–
1494
.
Google Scholar
 
9.
Braisted
,
W.
 &
Brockman
,
R.
 (
1999
)
Finite element simulation of laser shock peening
,
Int. J. Fatigue
21
,
719
–
724
.
https://doi.org/10.1016/S0142-1123(99)00035-3
Google Scholar
Crossref
Search ADS
 
10.
Zhang
,
W.
 &
Yao
,
Y. L.
 (
2000
)
Improvement of Laser Induced Residual Stress Distributions via Shock Waves
, in
Proceedings of 19th ICALEO
,
E183
–
192
.
Google Scholar
Crossref
Search ADS
 
11.
Peyre
,
P.
,
Petit
,
M.-A.
,
Bolis
,
C.
,
Bartnicki
,
E.
,
Fabbro
,
R.
,
Chaieb
,
I.
 &
Braham
,
C.
 (
2004
)
Finite Element Modelling of Laser Peening and Laser Peen Forming of Materials
, in
Proceedings of 23rd ICALEO
, Paper No.1106.
Google Scholar
Crossref
Search ADS
 
12.
Timoshenko
,
S.
 (
1956
)
Strength of Materials Part II Advanced Theory and Problems
3rd ed.,
Van Nostrand
,
208
pp.
Google Scholar
 
13.
Archer
,
R. R.
,
Cook
,
N. H.
,
Crandall
,
S. H.
,
Dahl
,
N. C.
,
Lardner
,
T. J.
,
McClintock
,
F. A.
,
Rabinowicz
,
E.
 &
Reichenbach
,
G. S.
 (
1972
)
An Introduction to the Mechanics of Solids
2nd ed.,
McGraw-Hill
,
316
pp.
Google Scholar
 
This content is only available via PDF.
© 2006 Laser Institute of America.
2006
Laser Institute of America
You do not currently have access to this content.