Ultrasonic control of the nonlinear elastic properties of the microcrumbling polycrystalline rocks
About authors
- 1 — Ph.D., Dr.Sci. professor Saint-Petersburg State Electrotechnical University (LETI)
- 2 — post-graduate student Saint-Petersburg State Electrotechnical University (LETI)
- 3 — Ph.D. associate professor National Mineral Resources University (Mining University)
Abstract
The influence of the uniaxial static stress on the Young’s modulus and on the internal friction of the polycrystalline rocks was studied. It was showed, that the effects of micropores and microcracks on the nonlinear elasticity and unelasticity of material are different. This makes possible different control of such parameters as microporosity and microcracking. The study was performed using the original method of loaded complex oscillator.
Область исследования:
(Archived) Mine survey
Keywords:
polycrystalline rocks
microporosity
microcracks
nonlinear elasticity
ultrasonic control
internal friction
static stress
ultrasonic method
loaded complex oscillator
References
- Belikov P.B., Petrov V.P. Facing stone and its properties. Мoscow: Nauka, 1977.
- Belikov P.B., Aleksandrov K.S., Ryjova T.V. Elastic properties of rockforming minerals and rocks. Мoscow: Nauka, 1970.
- Zalessky B.V., Belikov B.P. Physical-mechanical studies and expert definition of life duration of the main types of facing stones from the main deposits of the USSR // Proceedings of IGN. 1948. Is.89.
- Kind V.A., Okorokov S.D. Building materials. Мoscow: Gosstroyizdat, 1934.
- Lomtadze V.D. Methods of laboratory studies of physical-mechanical properties of rocks. Мoscow: Nedra, 1972.
- Merkulova V.M., Tsaplev V.M. Changes of sound velocities and internal friction at longitudinal and torsional vibrations under stress in microcracked media // Applied Acoustics. Taganrog: Publ. house TRTI, 1973 (Proceedings of TRTI. Vol.5, iss.34).
- Merkulova V.M. Influence of microcracks on the acoustical properties of media // Defectoscopia. 1972. N 5.
- Engelgart V. Pore space of sedimentary rocks. Мoscow: Nedra, 1964.
- Tsaplev V.M. Nonlinear Properties and Creep in Piezoceramics. Saint Petersburg: Publ. house of North-West State Technical University, 2003.
- Birch Fr. (ed), Schairer J.F., Cecil Spicer H. Handbook of Physical Constants. N.Y. 1942.
- Griffith A. The phenomena of rupture and flow in solids // Phil. Trans. Roy. Soc. 1921. Vol.221. Ser.A.
- Tsaplev V.M. Studies of Elastic and Unelastic Properties of Ferroelectrics under High Uniaxial Stress // International Journal of Acoustics and Vibration. 1997. Vol.2. N 4.
- Tsaplev V.M., Jvanyuk R. Multicomponent Com-plex Vibrator with the Active Feedback Control for Nondestructive Testing of Materials // The Ninth International Congress on Sound and Vibration. 8-11 July, 2002. Orlando, Florida, USA.
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