The thermal stress field in an elastic half-space due to a single pulse from a laser is derived for the general case of a mixed-mode structure beam. The mode structure models the output from a cylindrical laser resonator and thus defines a radially symmetric intensity distribution about the beam axis. The functional form of the temporal pulse profile is quite general in that it models the temporal pulse shapes emitted by a laser that is either internally pulsed through radio frequency modulation of its power supply, Q-switched, or mode locked. It also models a continuous beam that is mechanically chopped through external means.
Issue Section:
Technical Papers
1.
Englisch
W. R.
1977
, “Laser Processing of Materials
,” Battelle Information Journal
, Vol. 15
, pp. 7
–19
.2.
Gardner, P., 1992, Coherent, Inc. private communication with L. G. Hector, Jr.
3.
Geller
M. A.
Gorelik
G. E.
Pavlyukevich
N. V.
Parnas
A. L.
1986
, “Calculation of Temperature and Thermal Stresses in Quenching Steel with Laser and Electron Beams
,” Physics and Chemistry of Materials Treatment
, Vol. 20
, No. 4
, pp. 314
–316
, (in Russian).4.
Germanovich
L. N.
Kill
I. D.
Tsodokova
N. S.
1988
, “Thermoelastic Stresses in a Half-Space Heated by Concentrated Energy Flux
,” Applied Mathematics and Mechanics
, Vol. 52
, No. 4
, pp. 525
–533
, (in Russian).5.
Hector
L. G.
Kim
W.-S.
O¨zisik
M. N.
1992
, “Hyperbolic Heat Conduction Due to a Mode-Locked Laser Pulse Train
,” International Journal of Engineering Science
, Vol. 30
, No. 12
, pp. 1731
–1744
.6.
Hector, L. G. Jr., and Sheu, S., 1991, Brightness Enhancement with Textured Roll, United States Letters Patent #4,996, 113, United States Patent and Trademark Office, Arlington, VA.
7.
Hector
L. G.
Sheu
S.
1993
, “Focused Energy Beam Work Roll Surface Texturing Science and Technology
,” Journal of Materials Processing and Manufacturing Science
, Vol. 2
, No. 1
, pp. 63
–117
.8.
Hetnarski, R. B., and DeBolt, F., 1991, “Analysis of Laser Produced Stresses in a Structure,” Proceedings of the Second Pan American Congress of Applied Mechanics, P. Kittl, D. Mook, G. Reinke, eds., sponsored by the American Academy of Mechanics and published by the PACAM 2 Congress Committee, Valparaiso, Chile, pp. 364–367.
9.
Kim
W.-S.
Hector
L. G.
1991
, “The Influence of Temporal Pulse Profile on Hyperbolic Heat Conduction in Materials Subjected to Repetitively Pulsed Laser Radiation
,” Mechanics Research Communications
, Vol. 18
, No. 6
, pp. 419
–428
.10.
Koechner, W., 1988, Solid-State Laser Engineering, 2nd ed. Springer-Verlag, New York.
11.
Nonhof, C. J., 1988, Materials Processing with Nd-Lasers, Electrochemical Publications Ltd., Ayr, Scotland.
12.
Nowacki, W., 1986, Thermoelasticity, 2nd ed. Pergamon, New York.
13.
Oswald
R. B.
McLean
F. B.
Schallhorn
D. R.
Buxton
L. D.
1971
, “One-Dimensional Thermoelastic Response of Solids to Pulsed Energy Deposition
,” Journal of Applied Physics
, Vol. 42
, No. 9
, pp. 3463
–3473
.14.
Popov
V. P.
Lanin
A. G.
Kolesov
V. S.
Bochkov
A. N.
1983
, “Determination of Thermoplastic Surface Strains by the Local Heating Method
,” Physics and Chemistry of Materials Processing
, Vol. 17
, No. 6
, pp. 70
–73
.15.
Powell, J., 1993, CO2 Laser Cutting, Springer-Verlag, New York.
16.
Steen, W. M., 1991, Laser Material Processing, Springer-Verlag, New York.
17.
Volchenok
I. A.
Rudin
G. I.
1988
, “Thermoelastic Stresses in a Multilayer Plate Upon Action of Laser Radiation
,” Journal of Engineering Physics
, Vol. 55
, No. 5
, pp. 1286
–1290
.18.
Welsh
L. P.
Tuchman
J. A.
Herman
I. P.
1988
, “The Importance of Thermal Stresses and Strains Induced in Laser Processing with Focused Gaussian Beams
,” Journal of Applied Physics
, Vol. 64
, No. 11
, pp. 6274
–6286
.
This content is only available via PDF.
Copyright © 1996
by The American Society of Mechanical Engineers
You do not currently have access to this content.