Sergey L. Lopatnikov Senior Scientist 215 Composites Manufacturing Science Laboratory University of Delaware | Newark, DE 19716-3144 Phone: (302) 831-6110 | Fax: (302) 831-8525 Email: lopatnik@ccm.udel.edu

Research Interests: General physics, Nanotechnology, Linear and non-linear wave propagation in composite meterials, dynamics of poroelastic meterials, interaction of projectiles with obstacles, dynamics of liquid crystals and liquid-crystal based colloids.

Education

Ph.D. Physics & Mathematics The Institute of the Earth Magnetism and Radio wave Propagation of the Academy of Sciences USSR, Moscow, 1977.

MS in Radio Physics from Moscow Power Engineering Institute, 1977
First Place at the Annual Diploma Works Competition.

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Professional experience

Senior Scientist, Center for Composite Materials, University of Delaware, Newark, DE, USA, January 2001

Visiting Research Professor, Department of Civil Engineering, University of Delaware, Newark, DE, USA, May, 2000 –

Leading Research Scientist, Moscow State University, Department of Chemistry, 1994,

Organizer and first Director of the Laboratory of mathematical modeling for ALL-Union Research Institute of Nuclear Geophysics and Geochemistry in Moscow (VNIIYaGG) 1987-1994.

Member of panel and scientific council of the Institute, 1981.

Research Scientist in the Institute of the Oceanology, The Academy of Sciences of the USSR, Moscow, January 1979 - December 1980.

Engineer: Institute of Physics, Academy of Sciences of the USSR, Moscow; April 1977- November 1979.

Teaching
Physical aspects of the elastic wave propagation theory in geological media, Moscow State University, 1986-1988.

Non-linear acoustics, Moscow State University, 1986-1988.

Mathematical Modeling of the satellite using remote sensing methods in environmental control problem, Moscow State University, 1995-1996.

Statistical Physics and Thermodynamics (813, University of Delaware, Department of Physics, 2000–

Advising
Advised undergraduate and graduate students in Moscow State University.

Consulting
Official expert for Environmental Committee of Supreme Counsil of the USSR, 1989-1991
Advisor for vice head of Defense Committee of State Duma (House of Representatives),
1995-1999.

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Patents

The method of the forecast of the tsunamigeneity of the occurred underwater earthquakes. Pat. SU No. 1584583 Co-authors: V. Ivanov, V. Rok.

recent journal papers

"Investigation of strong electromagnetic waves propagation in plasma". Diploma work, Mosc. Pow. Eng. Ins-t, Department of Radiotechics, Moscow, 1973.

"Self-focusing of strong waves in media with non-local non-linearity." Ph.D. Thesis. IZMIRAN (Institute of the Earth Magnetism and Radio wave propagation, Academy of Sciences of the USSR), Moscow, 1977.

Ju. Lomonosov, S. Lopatnikov, E. Verzhbitski. Acoustic instruments for investigations of the deep sea bottom.(in Russian) VIEMS, Moscow, USSR, 1979.

A. Lokshin, S. Lopatnikov, A. Saakyan. Contracted mapping method in symmetric eigenvalue problem (in Russian): Moscow State University Press,1995 , pp.144.

Boll lightning: problems are valid.(In Russian) Co-authors: I. Stakchanov
In: Science and Life, 1975, N.12.

On stability of strong electromagnetic waves in magneto-active plasma. In: Soviet J. Techical Physics Letters,1977, v.2 (Sov. Phys. ZTP Lett.)

Interaction of giant molecules solving in liquid crystal. Co-authors: V. Namiot; In: Soviet J. of Experimental and Theoretical Physics, 1978, N.8, p.361. (Sov. Phys. ZETP).

On new possible method of giant molecules investigation. Co-author: V. Namiot; In: Soviet J. Applied Physics Letters, 1978, .4, N.15, p.894. (Sov. Phys ZTP Lett.).

On the nature of interaction of giant molecules solved in liquid crystal. Co-author: V. Namiot; In: Soviet Biophysical Journal, 1978, N.12, p.1110.

Acoustic phase echo in liquid containing gas bubbles. In: Soviet J. Applied Physics Letters, 1980, v.6, p.623.( Sov. Phys. ZTP lett.)

Resonance damping of molecules excitation and possibility of the chemical reactions control. Co-author: E. Lopatnikova. In: J. USSR Academy of Sciences Reports, 1983, v.269, N.5. (Doklady Academii nauk SSSR).

On rectified diffusion re-condensation mechanism and primary migration on hydrocarbons. Co-authors: Academician A. Geodekiyan, A. Egorov. In: J. USSR Academy of Sciences Reports, 1984, v.274, N.3. (Doklady Academii nauk SSSR)

The power broad-band cylindrical acoustic transducer for the geophysical applications. Co-authors: V. Gurvich, In: Izv. Viss. Uchebn. Zaved.; J. of Geology and Prospecting, 1984, N.8

The free gas influence on elastic wave propagation and attenuation in saturated porous media. Co-authors: P. Gorbachev In: Izv. Viss. Uchebn. Zaved.; J. of Geology and Prospecting, 1985, N.9.

On attenuation of longitudinal waves in fluid-saturated media contained random inhomogeneities. Co-authors: B. Gurevich. In: USSR Academy of Sciences Reports, 1985, v.281 (2), 47-50.(Doklady Academii nauk SSSR).

Non-homogeneous waves in space, dissected by thin crack contained viscous filler. Co-authors: I. Fayzullin, S. Shapiro. In: Izv. Acad. Nauk USSR. J. Physics of the Solid Earth, 1985, N.6.

Estimate of threshold of rectified diffusion in saturated porous media. Co-authors: P. Gorbachev. In: J. Transactions of the Moscow State University. Geology. 1986, N.2

Influence of noises on the accuracy of acoustic logging measurements. Co-authors: P. Gorbachev, A. Samoilov In: Izv. Viss. Uchebn. Zaved.; J. of Geology and Prospecting, 1986, N.11

Informative significance of the eigenproper Cherenkov's luminescence of the sea water for deep-sea animals. Co-authors: Yu. Baboshin, N. Popov. In: USSR Academy of Sciences Reports, 1986 v.290, N.4 (Doklady Academii nauk SSSR)

Elastic waves attenuation in the randomly heterogeneous fluid saturated porous media. Co-authors: B. Gurevich. In: USSR Academy of Sciences Reports, 1986, v. 291, N.3. (Doklady Academii nauk SSSR)

P-waves propagation and attenuation in the partially gas-saturated porous medium. Co-authors: P. Gorbachev. In: Izv. Acad. Nauk USSR. J. Physics of the Solid Earth, 1987, N.8

Transformational mechanism of elastic wave attenuation in saturated porous media. Co-author: B. Gurevich In: Izv. Acad. Nauk USSR.J. Physics of the Solid Earth, 1988, N.2

Quadratic non-linear echo in gas-saturated liquid. Co-author: O. Vinogradova. In: Soviet Acoustical Journal, 1988, p.358

Elastic waves propagation in periodically stratified saturated porous medium. Co-authors: B. Gurevuch, O. Vinogradova. In: J. Geology and Geophysics, Novosibirsk, 1990, N.2

On apparent of 'additional mass' in multiphase media motion equations. Co-authors: O. Vinogradova In: Izv. Acad. Nauk USSR. J. Physics of Solid Earth, 1990, N.1

The Kanyar-Hoop method for absorbing media. Co-authors: A. Lokshin, V. Rok In: J. of Solid Body Mechanics, 1990, N.5. 188-190

Acoustic wave propagation in a porous medium with randomly non-homogeneous gas distribution. Co-authors: P. Gorbachev, B. Gurevich In: USSR J. Physics of Solid Earth, 1990, N.6

Integral representation for wave fields in piecewise homogeneous porous media. Co-authors: B. Gurevich, A. Sadovnichaja, S. Shapiro. In: Izv. Acad. Nauk USSR. J. Physics of the Solid Earth, 1990 N.7

On plane wave reflection and refraction at the boundary of completely-elastic halfspaces. Co-authors: A. Lokshin, E. Sagomoniyan In: J. Physics of the Solid Earth, 1991,N.3

The Born approximation in the problem of elastic wave scattering by a spherical inhomogeneity in a fluid-saturated porous medium. Co-authors: B. Gurevich, A.

Sadovnichaja, S. Shapiro. In: Appl.Phys.Let.,1992,v.6,N.11

Elastic wave scattering by the isolated inclusion in saturated porous medium. Co-authors: B. Gurevich, A. Sadovnichaja, S. Shapiro. In: Izv. Acad. Nauk USSR. J. Physics of Solid Earth, 1993 N.8

Civilization of wastes. (In Russian) In: New Times, 1995, No.19-20, p.24-26.

Velocity and attenuation of elastic waves in finely layered porous rocks Co-author: B. Gurevich. In: Geophys. J. Int. 1995, v.121, p.933-947

The thermal convection and oil deposits forming. (In Russian) In: Russian Academy of Sciences Reports (Doklady Rossiyskoi Academii Nauk), 1995, v.345, No.4, p.541-543

On one basis-less algorithm of Shroedinger equation solution.(In Russian) Co-authors: A. Lokshin, A. Saakyan. In: J. Transactions of the Moscow State University. Chemistry, 1995, No.3, p.207-210

Contracted mapping in Hilbert space. (In Russian) Co-authors: A. Lokshin, A. Saakyan In: J. Transactions of the Moscow State University. Mathematics, 1995, No.5, p.43-50

On numerical solution of Schroedinger equation for electron-nuclear system with several centers by using non-basis algorithm. (In Russian) Co-authors: A. Lokshin, V. Lyutsarev, A. Saakyan, V. Spiridonov In: J. Transactions of the Moscow State University. Chemistry. 1996, No.2

Contracted mapping principle in symmetric eigenvalue problem. (In Russian) Co-authors: Co-authors: A. Lokshin, A. Saakyan In: J. Transactions of the Moscow State University. Mathematics, 1996, No.3, 78-81

Fluctuations of tunneling microscope current near phase transition in absorbed layer. In: Russian Academy of Science Reports (Doklady Rossiyskoi Academii Nauk), 1997, v.353, No.6, 1-3

Seismic attenuation in finely layered porous rocks: Effects of fluid flow and scattering. Co-authors: B. Gurevich, V. Zirianov In: Geophysics, 1997, v.62, No.1, 319-324

Dynamic equations for the new materials: porous media saturated with magneto- and electro-rheological liquids. In.: Russian Academy of Science Reports (Doklady Rossiyskoi Academii Nauk), 1998, v. 360, No.5, 637-639

A Thermodynamically consistent formulation of magneto-poro-elastisity. Co-author: A.H.-D. Cheng In.: International Journal of solids and Structures. Poroelastisity Maurice A. Biot Memorial Issue, 1998, v/34. No.43-35., 4637-4657

Scattering of compressional waves in porous medium by an ellipsoidal inclusion. Co-authorsB.Gurevich,A.Sadovnichaya, S.Shapiro In: Journal Geophysical International, 133 (1) 91-103;

Hydrocirculation and the thermal regime of a 3-dimensional rock mass with a porous layer. Co-authors: A. Bobrov, V. Trubitsin In. J. Physics of Solid Earth, 1998 No.11, 916-921

Equations for quasi-two-dimensional thermal convection in thin permeable layers of arbitrary form. In.: Izv. Acad. Nauk USSR. J. Physics of Solid Earth. 1999, No.1

Development of hydrothermal convection in vertical permeable layer submersed in non-penetrable heat conductive medium. . Co-author: A.Bobrov Izv. Acad. Nauk USSR. J. Physics of Solid Earth. 37: (3) 249-256 MAR 2001

Variational formulation of fluid infiltrated porous material in thermal and mechanical equilibrium. Mechanics of Materials 34 (2002) 685-704, Co-author: Cheng, A.H.-D.

"Variational formulation of fluid infiltrated porous materials and physically-based micromechanical material constants,'' Co-author Cheng, A.H-D., Poromechanics II,

Proceedings of the 2nd Biot Conference on Poromechanics, eds. J.-L. Auriault, C. Geindreau, P. Royer, J.-F. Bloch, C. Boutin and J. Lewandowska, pp. 385-390, Balkema, Grenoble, France, August 26-28, 2002.

Dynamics of Metal Foam Deformation during Taylor Cylinder - Hopkinson Bar Impact Experiment. Co-authors: B.Gama, C.Krauthauser, Md.J.Hague, J.W.Gillespie, Mustafa Guden, and Ian W. Hall, Composite Structures 61, 61-71 (2003)

On the Classic Split Hopkinson Bar Data Reduction. J. “Techical Physics letters” Co-authors: B.Gama, C.Krauthauser, J.W.Gillespie To be published.

Impact shock loading and penetration of porous materials: analyses, experiments and simulations: Co-authors B. Gama, Md. J. Haque, Carl Krauthauser, and J.W. Gillespie Jr. SAMPE, May 2003

High velocity plate impact of metal foams. Co-authors: B.Gama, C.Krauthauser, Md.J.Hague, J.W.Gillespie International Journal of Impact Engineering, To be published.

Lagrangian formulation of poroelasticity with porosity dynamics. Co-authors: A.H-D.Cheng, J.W.Gillespie. 16th Engineering Mechanical Conference, July 16-18, 2003, University of Washington, Seattle

Lagrangian formulation of poroelasticity with porosity dynamics. Co-author: A.H-D.Cheng, Submitted to the Journal of the Mechanics and Physics of Solids, June 2003.

On the measurement of rheologial data with the help of Split-Hopkinson Pressure Bar. Co-authors: B.Gama, C.Krauthauser, J.W.Gillespie. Submitted in the J. Applied Mechanics and Technical Physics, May 2003.

A Closed Form Solution to Describe Infusion of Resin under Vacuum in Deformable Fibrous Porous Media. Co-authors: P.Simacek, S.G.Advani, J.W.Gillespie. Submitted

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