 | | 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: | | 12854 |
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| V. G. Bazhenov, V. L. Kotov, A. V. Kochetkov, S. V. Krylov, and V. R. Fel'dgun, "On wave processes in soil subjected to a surface charge explosion," Mech. Solids. 36 (2), 62-68 (2001) |
| Year |
2001 |
Volume |
36 |
Number |
2 |
Pages |
62-68 |
| Title |
On wave processes in soil subjected to a surface charge explosion |
| Author(s) |
V. G. Bazhenov (Nizhni Novgorod)
V. L. Kotov (Nizhni Novgorod)
A. V. Kochetkov (Nizhni Novgorod)
S. V. Krylov (Nizhni Novgorod)
V. R. Fel'dgun (Nizhni Novgorod) |
| Abstract |
In recent years, the properties of soft soil
subjected to a blast load have been considered in
numerous theoretical and experimental investigations [1-7].
There are several experimental methods for finding shock adiabats
for soft soil [2-4, 7]. However, the results are quite
contradictory and further investigation is needed regarding the basic
properties of soft soil, as well as a thorough theoretical justification
of the experimental methods. This work describes the numerical results
pertaining to the action of a surface explosive charge transmitted to
sand through a metal plate. The soil is modeled by an incompressible
material of S. S. Grigoryan's type [8] with irreversible volume and
shear deformations. The numerical solutions obtained on the basis of
various shock adiabats used in the scientific literature are compared
with experimental data. This investigation results in the construction of
combined adiabatic relations for the sand subjected to shock, together
with their justification for pressures not exceeding 1 GPa.
We also examine the influence of volume plastic strains and friction
forces on wave processes in soil. |
| References |
| 1. | N. N. Gerdyukov, A. G. Ioilev, and S. A. Novikov,
"Investigation of the action of blast loads on soft soil,"
Zh. Prikl. Mekh. i Tekhn. Fiziki, No. 2, pp. 149-152, 1992. |
| 2. | N. N. Gerdyukov, A. G. Ioilev, S. A. Novikov, and A. V. Chernov,
"Investigation of physical and mechanical characteristics of sand
subjected to dynamic loading," Preprint [in Russian], VNIIEF, No. 12-92,
TSNIIAtominform, Moscow, 1992. |
| 3. | V. A. Lagunov and V. A. Stepanov,
"Dynamical compressibility measurements for sand subjected to high
pressure," Zh. Prikl. Mekh. i Tekhn. Fiziki, No. 1, pp. 88-96, 1963. |
| 4. | M. D. Dianov, N. A. Zlatin, S. M. Mochalov, G. S. Pugachev, and
L. Kh. Rosomakho,
"Shock compressibility of dry and water-saturated sand,"
Pis'ma v ZhTF, Vol. 2, No. 12, pp. 529-532, 1976. |
| 5. | A. A. Vovk, B. V. Zamyshlyaev, L. S. Evterev, et al.,
Behavior of Soil under Impulse Loading [in Russian], Naukova Dumka,
Kiev, 1984. |
| 6. | G. M. Lyakhov, Waves in Soil and Porous Multicomponent Media
[in Russian], Nauka, Moscow, 1982. |
| 7. | A. M. Bragov and G. M. Grushevskii,
"The influence of moisture and granulometric composition on
the shock compressibility of sand," Pis'ma v ZhTF, Vol. 19,
No. 12, pp. 70-72, 1993. |
| 8. | S. S. Grigoryan, "Basic concepts of soil dynamics,"
PMM [Applied Mathematics and Mechanics], Vol. 24, No. 6, pp. 1057-1072,
1960. |
| 9. | V. G. Bazhenov, E. A. Kozlov, and S. V. Krylov,
"Numerical simulation for plane problems of nonlinear impact interaction
of deformable bodies and structures on the basis of S. K. Godunov's
method," in Applied Problems of Strength and Plasticity.
Analysys and Optimization of Structures [in Russian], Izd-vo Gorkovsk. Un-ta,
Gorky, No. 45, pp. 99-106, 1990. |
| 10. | V. L. Kotov, A. V. Kochetkov, and S. V. Krylov,
"Numerical simulation for plane problems of
explosion in soft soil, taking into account free surface dynamics,"
in Applied problems of Strength and Plasticity. Numerical Simulation
of Physical and Mechanical Processes [in Russian], pp. 102-110, Tov. Nauchn. Izd.
KMK, Moscow, 1998. |
| 11. | S. K. Godunov (Editor), Numerical Solution of Multi-dimensional
Problems in Gas Dynamics [Russian translation], Mir, Moscow, 1976. |
| 12. | N. N. Gerdyukov, A. G. Ioilev, S. A. Novikov,
"Determination of the dynamical coefficient of friction between
sand and a rigid wall," Zh. Prikl. Mekh. i Tekhn. Fiziki, Vol. 36,
No. 4, pp. 185-187, 1995. |
| 13. | G. V. Rykov, "Experimental investigation of
stress field in sand subjected to explosion," Zh. Prikl. Mekh. i Tekhn.
Fiziki, No. 1, pp. 85-89, 1964. |
| 14. | A. Fox and M. Pratt, Computational Geometry [Russian
translation], Mir, Moscow, 1982. |
|
| Received |
28 May 1999 |
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