 | | 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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| E. S. Sibgatullin, "The development of the concept suggested by G. G. Sih in fracture mechanics," Mech. Solids. 36 (2), 90-94 (2001) |
| Year |
2001 |
Volume |
36 |
Number |
2 |
Pages |
90-94 |
| Title |
The development of the concept suggested by G. G. Sih in fracture mechanics |
| Author(s) |
E. S. Sibgatullin (Naberezhnye Chelny) |
| Abstract |
In [1], where various criteria of quasibrittle fracture of bodies with a
microcrack are given, the criterion suggested by G. G. Sih is noted to be
most widespread. However, calculation results obtained on the basis of
Sih's criterion [2] frequently do not agree with experimental data (see,
for instance, [3]). In the present paper, under the assumption that a
body with a macrocrack is capable of attaining the limit state (Sih's
criterion is based on that assumption), we suggest a reasonable approach to
passing from the space of stresses to the space of stress intensity
factors (SIF). The fracture criterion obtained allows us to find, in
particular, the boundary between the elastic region of the body and the
region where the fracture process takes place near the crack
tip [4]. The general fracture criterion implies the fracture criteria for
all special cases with only one of the SIF's being different from zero.
We propose a method for approximating the limit surface in the SIF space
and compare theoretical results with experimental ones obtained by other
authors. By way of example, we solve the problem of determining
the bearing capacity for a rectangular plate with an inclined central
crack under the action of uniformly distributed uniaxial tensile forces. |
| References |
| 1. | V. V. Panasyuk, A. E. Andreikin, and V. Z. Parton, Fracture
Mechanics and Strength of Materials. Volume 1. Basic Principles of Fracture
Mechanics [in Russian], Naukova Dumka, Kiev, 1988. |
| 2. | G. C. Sih, "Some basic problems in fracture mechanics and new
concepts" Eng. Fract. Mech., Vol. 5, No. 2, pp. 365-377, 1973. |
| 3. | T. Fudjii and M. Dzako, Fracture Mechanics of Composite
Materials [Russian translation from Japan], Mir, Moscow, 1982. |
| 4. | V. N. Shlyannikov, "Strain energy density and the region of the
fracture process. Theoretical preliminaries," Problemy Prochnosti,
No. 10, pp. 3-17, 1995. |
| 5. | M. P. Savruk, Fracture Mechanics and Strength of Materials.
Volume 2. Strain Intensity Factors for Cracked Bodies [in Russian], Naukova Dumka,
Kiev, 1988. |
| 6. | E. M. Wu, "Strength and fracture of composites," in
L. J. Broutman and R. H. Krock (Editors), Composite Materials. Volume 5.
Fracture and Fatigue [Russian translation], pp. 206-266, Mir, Moscow,
1978. |
| 7. | S. E. Kovchik and E. M. Morozov, Fracture Mechanics and Strength of
Materials. Volume 3. Characteristics of Short-Term Crack Resistance and
Methods of Their Determination [in Russian], Kiev, Naukova Dumka, 1988. |
| 8. | S. Murakami (Editor), Stress Intensity Factors Handbook.
Volume 2 [Russian translation], Mir, Moscow, 1990. |
|
| Received |
27 July 1998 |
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