List of publications in 2012, in which our clients describe examples of the use of our company's products:
S. I. Builo, D. M. Kuznetsov, V. V. Trepachev, V. L. Gaponov (Vorovich Research Institute of Mechanics and Applied Mathematics, Southern Federal University; Don State Technical University; Institute of Power Engineering and Machine Building, Don State Technical University). Acoustic-emission testing and diagnostics of the dissolution kinetics of crystalline components. Russian Journal of Nondestructive Testing. 2012. Vol. 48, No. 10. P. 594-597. https://link.springer.com/article/10.1134/S1061830912100026 DOI 10.1134/S1061830912100026. eLibrary ID: 20476491
Abstract
The dynamics of changes in acoustic emission (AE) parameters during the dissolution of a crystal were considered. The temperature dependence of the dissolution time constant was experimentally established. A method for estimating the crystal dissolution time constant and dynamics from the data of AE measurements was proposed
Vinogradov S.D., Lutskii V.A. (Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow). Recovery of the form of acoustic signals in experiments with rock samples. Seism. Instr. 49, 238–243 (2013). https://link.springer.com/article/10.3103/S0747923913030109 DOI: 10.3103/S0747923913030109
Abstract
The formation of signals in the receiving channel of the recording system is assumed to be described by the linear procedure of convolution (Duhamel’s integral) in the first approximation. In this case, distortions caused by irregularity in the amplitude-frequency characteristic of electroacoustic converters (receivers) can be reduced and a real form of input signals can be recovered. To do this, it is required to know the impulse characteristic of the receiver and the amplifying part of the input channel of the system and to perform secondary data processing. A principal possibility of recovering a form of the input signals in such a way is shown
Vinogradov S.D., Lutskii V.A., Khromov, A.A. (Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow). Non-explosive demolition agent as a source of acoustic noise during laboratory study of destruction of rocks. Seism. Instr. 49, 40–45 (2013). https://link.springer.com/article/10.3103/s074792391301009x DOI: 10.3103/S074792391301009X
Abstract
This work analyzes the noise impulses caused by a non-explosive demolition agent (NEDA), which was used as a stress source during experiments on the destruction of rock samples. As a result of our works, criteria have been obtained, which can be used for selection and filtration of acoustic noise pulses of a NEDA from the general flow of signals recorded at the registration of acoustic emission during deformation and destruction of rock samples
Ponomarev A.V., Lutskii V.A., Khromov A.A. (Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow). A reed switch as a source of elastic waves in laboratory experiments. Seism. Instr. 49, 81–86 (2013). https://link.springer.com/article/10.3103/S0747923913010088 DOI: 10.3103/S0747923913010088
Abstract
Acoustic signals arising due to the contacting-breaking of reed switches are analyzed. They are compared with other acoustic signal sources. Recommendations for using reed switches as a source of calibrated signals in laboratory experiments on hard material samples are given
A. P. Soldatenkov, L. R. Botvina, M. R. Tyutin, V. P. Levin, N. A. Zharkova (Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow). Fracture of a low-carbon steel under mode I, mode II, and mixed-mode loading conditions. Russ. Metall. 2013, 751–759 (2013). https://link.springer.com/article/10.1134/S0036029513100133 DOI: 10.1134/S0036029513100133
Abstract
The effect of the shear component of static loading on the evolution of the plastic deformation zones and the mechanical and acoustic properties (acoustic emission parameters, ultrasonic wave velocity and attenuation coefficient) of a low-carbon grade 20 steel is studied. It is found that an increase in the shear loading component leads to a change in the shape of a plastic deformation zone, the appearance of an additional system of microcracks, an increase in the total fracture energy, a decrease in the slopes of the cumulative distributions of the acoustic signal amplitude and the microcrack length, and a significant increase in the ultrasound attenuation coefficient
Shkuratnik V.L., Nikolenko P.V., Ruban A.D., Kormnov A.A. Method to manufacture piezoelectric pressure gauge. Russian patent № 2439514 (2012). eLibrary ID: 37484129
Abstract
Field: instrument making. Substance: piezoelements with electrodes are placed between a base and a force-transferring element. The produced piezopacket is tightened with an effort in a thin-walled jacket, which is coupled and welded along the perimeter at one end to the base, and at the other one – to the force-transferring element. Prior to assembly of the piezopacket each piezoelement it comprises is exposed to static mechanical loading with pressure individual for each piezoelement and exceeding pressure, to which piezoelements are exposed when tightened into the piezopacket. Effect: increased accuracy of measuring slowly rising preset values of static pressures.
V. L. Shkuratnik, E. A. Novikov (Moscow State Mining University). Correlation of thermally induced acoustic emission and ultimate compression strength in hard rocks. Journal of Mining Science. 2012. Vol. 48, No. 4. P. 629-635. https://link.springer.com/article/10.1134/S1062739148040053 DOI: 10.1134/S1062739148040053. eLibrary ID: 20478402
Abstract
The authors have experimentally established and substantiated the relation between the ultimate compression strength and the low-temperature induced acoustic emission in the compressed hard rock specimens, averaged in a preset temparature range. This relation shows itself most clearly if data sampling is subjected to pre-censoring by withdrawal of data obtained on specimens with abormal defectiveness detected from the analysis of the thermally induced acoustic emission. The study case of the ultimate strength evaluation for Kapustinsky granite by using the thermoacoustic emission measurements is reported
V. L. Shkuratnik, E. A. Novikov. Physical modeling of the grain size influence on acoustic emission in the heated geomaterials. Journal of Mining Science. 2012. Vol. 48. No 1. P. 9-14. DOI 10.1134/S1062739148010029. eLibrary ID: 17987308