 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 11223 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8011
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| In English (Mech. Solids): | | 3212 |
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| A. A. Evtushenko, E. G. Ivanik, and S. I. Matysyak, "On a model of thermal splitting by laser beams," Mech. Solids. 36 (2), 114-119 (2001) |
| Year |
2001 |
Volume |
36 |
Number |
2 |
Pages |
114-119 |
| Title |
On a model of thermal splitting by laser beams |
| Author(s) |
A. A. Evtushenko (Lvov)
E. G. Ivanik (Lvov)
S. I. Matysyak (Warsaw) |
| Abstract |
A theoretical justification of the method of thermal splitting by laser
beams was given in [1-4] and elsewhere. The general scheme of
the method involves (i) the determination of the thermal field on the
surface of the body exposed to laser heat flow and (ii) the determination
of optimal parameters of thermal splitting by laser beams (for example,
the distance from the boundary of the laser spot to the cooling
front, etc.)on the basis of the condition that the temperature gradient
should exceed the thermal resistance of the material.
In the present paper, we propose an approach for calculating
the parameters of thermal splitting by laser beams on the basis of
certain criteria specified by
equations of brittle fracture mechanics. For this purpose, in addition to
the nonstationary distribution of temperature, we determine the
quasistatic thermal stress state of a
semi-bounded body heated over a circular
region of its boundary by a heat flow with the normal (Gaussian)
distribution. |
| References |
| 1. | N. N. Rykalin, A. A. Uglov, and A. N. Kokara, Laser Treatment of
Metals [in Russian], Mashinostroenie, Moscow, 1975. |
| 2. | N. N. Rykalin, A. A. Uglov, I. V. Zuev, and A. N. Kokora,
Laser and Electron-Beam Treatment of Materials: a Handbook [in Russian],
Mashinostroenie, Moscow, 1985. |
| 3. | V. S. Kondratenko and A. N. Serdyukov,
"Thermal field calculations for controllable laser-beam
thermal splitting," in Elektronnaya Tekhnika. Ser. II.
Lazernaya Tekhnika i Optoelectronika, No. 5, pp. 62-66, 1984. |
| 4. | Y. J. Nessim, A. Lietoil, R. B. Gold, and J. F. Gibbons,
"Temperature distribution produced in semiconductors
by a scanning elliptical or circular CW laser beam,"
J. Appl. Phys, Vol. 51, No. 1, pp. 274-279, 1980. |
| 5. | N. I. Makarov, I. N. Rykalin, and A. A. Uglov,
"On the choice of the calculation scheme for the temperature
field in plates subjected to laser welding,"
Fiz. i Khim. Obrabotki Materialov, No. 3, pp. 9-15, 1967. |
| 6. | I. Sneddon, The Use of Integral Transforms, McGraw-Hill, New
York, 1972. |
| 7. | W. W. Duley, CO2 Lasers: Effects and Applications,
Academic Press, New York, 1976. |
| 8. | G. Parkus, Nonstationary Thermal Stresses [in Russian], Fizmatgiz, Moscow,
1963. |
| 9. | A. A. Griffith, "The theory of rupture," in Proc. 1st Intern.
Congr. Appl. Mech. Delft, 1924, pp. 55-63, Waltmar, Delft, 1926. |
| 10. | F. A. McClintock and J. B. Walsh, "Friction of Griffith cracks
in rock under pressure," in Proc. 4th US Nat. Congr. Appl. Mech., Vol. 2,
pp. 1015-1021, Berkeley, 1962. |
| 11. | S. P. Timoshenko and J. N. Goodier, Theory of Elasticity
[Russian translation], Nauka, Moscow, 1975. |
| 12. | M. M. Protodyakonov, R. I. Teder, E. I. Il'nitskaya, et al.,
Distribution and Correlation of Physical Parameters of Rocks: a
Handbook [in Russian], Nedra, Moscow, 1981. |
|
| Received |
21 January 1997 |
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