Search Results - "Chertov, M. A."

Grain Size Measurement of Copper Spot Welding Caps Via Ultrasonic Attenuation and Scattering Experiments by Wydra, A., Chertov, A. M., Maev, R. Gr, Kube, C. M., Du, H., Turner, J. A.

“…During ultrasonic testing of resistance spot welds in real time, the probe sends the sound waves through the thickness of the copper electrode cap into the…”
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Radiation endurance of piezoelectric ultrasonic transducers – A review by Sinclair, A.N., Chertov, A.M.

“…•The literature on radiation resistance of ultrasonic transducers is reviewed.•Minor changes to standard transducer design improves endurance to ∼2MGy gamma…”
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ISRM Suggested Method for Uniaxial-Strain Compressibility Testing for Reservoir Geomechanics by Dudley, J. W., Brignoli, M., Crawford, B. R., Ewy, R. T., Love, D. K., McLennan, J. D., Ramos, G. G., Shafer, J. L., Sharf-Aldin, M. H., Siebrits, E., Boyer, J., Chertov, M. A.

“…Rock hydromechanically coupled properties are key parameters needed for an accurate understanding of the formation deformation response to pore-pressure…”
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Propagation features of plane waves of defect field across the interface boundary between viscoplastic media with arbitrary damping by Chertova, N.V., Chertov, M.A.

“…Dynamic equations of the field theory of translational defects have been applied to the analysis of propagation of plane waves of defect field across the…”
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Dynamics of inelastic deformation of porous rocks and formation of localized compaction zones studied by numerical modeling by Stefanov, Yu P., Chertov, M.A., Aidagulov, G.R., Myasnikov, A.V.

“…The paper presents a numerical analysis of the inelastic deformation process in porous rocks during different stages of its development and under non-equiaxial…”
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A one-dimensional numerical model of acoustic wave propagation in a multilayered structure of a resistance spot weld by Chertov, A.M., Maev, R.G.

“…A one-dimensional model of acoustic wave propagation in a multilayered structure of a spot weld is developed. The inhomogeneity of the material properties due…”
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Modeling the behavior of complex media by jointly using discrete and continuum approaches by Psakhie, S. G., Smolin, A. Y., Stefanov, Y. P., Makarov, P. V., Chertov, M. A.

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Plane Defect-Field Wave Propagation in a Viscoelastic Medium by Chertova, N. V.

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The effect of surface waves on the interaction of incident particles with a solid surface by Chertov, M. A., Smolin, A. Yu, Sapozhnikov, G. A., Psakhie, S. G.

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Modelling ultrasonic wave propagation in a multilayered medium for resistance spot welding by Kocimski, J, Arthur, W, Kustron, P, Chertov, A M, Maev, R Gr, Korzeniowski, M, Ambroziak, A

“…This paper presents the results of modelling ultrasonic wave propagation in multi-layered media. Using a Finite Element Method (FEM), the analysis facilitates…”
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Efficient feature extraction in ultrasonic spot weld inspection by Baradarani, A., Khanli, L. M., Chertov, A. M., Regalado, W. P., Maev, R. Gr

“…Ultrasonic signals obtained in the process of nondestructive testing of resistance spot welds are often contaminated by various kinds of noise or artifacts…”
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The effect of strain rate on the character of sigma - epsilon diagrams by Grinyaev, Y V, Chertova, N V, Chertov, M A

“…An equation governing the evolution of elastic strains (stresses) for a given strain rate, is obtained using the field theory of defects under the assumption…”
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Detection of discontinuities in contact pressure between rough surfaces by Karloff, A. C., Chertov, A. M., Maev, R. G.

“…A 10 MHz transducer with 80% bandwidth was used to detect changes in contact pressure over time for two rough solid surfaces. Changes in the reflected pulse…”
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Enhancing real-time ultrasound signatures of molten nugget growth for quality evaluation of resistance spot welds by Karloff, A.C., Chertov, A.M., Maev, R.G.

“…This paper presents an effective means of enhancing weak acoustic reflections in real-time ultrasound signatures of a spot weld, by analyzing the propagation…”
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New developments for in situ ultrasonic measurement of transient temperature distributions at the tip of a copper resistance spot weld electrode by Karloff, A. C., Chertov, A. M., Kocimski, J., Kustron, P., Maev, R. Gr

“…This paper presents the new development of a joint thermal simulation and ultrasonic time of flight (TOF) measurement technique for the In situ measurement of…”
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The effect of strain rate on the character of σ-ε diagrams by GRINYAEV, Yu. V, CHERTOVA, N. V, CHERTOV, M. A

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Application of a programmable multi-channel ultrasonic system for in-line quality monitoring of spot welds by Lui, A., Karloff, A. C., Chertov, A. M., Maev, R. G., Boni, E., Tortoli, P.

“…This paper presents the use of a multi-channel ultrasonic system for real-time quality monitoring of resistance spot welds. Currently, in-line systems use a…”
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