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Liviu Librescu

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Liviu Librescu
Musical artist


Liviu Librescu (1932 - April 16, 2007) was Professor of Engineering Science and Mechanics at Virginia Tech and a Holocaust survivor. His major research fields were aeroelasticity and unsteady aerodynamics. Dr. Librescu was murdered in the Virginia Tech massacre along with 31 other students and faculty members.

Life and career

Dr. Librescu was an accomplished scientist from Romania. He studied Aerospatial Engineering at the Polytechnic University of Bucharest, graduating in 1952 and continuing with a master at the same university. He got his PhD in Fluid Mechanics in 1969 at the Academia de Stiinte din România.

Under the former Romanian communist regime he was unable to make aliyah to Israel. He was allowed to leave the country only after the Israeli prime minister at the time Menachem Begin appealed the matter to Romanian President Nicolae Ceausescu.

Prof Librescu immigrated to Israel in 1978. Several years later, Librescu left for a sabbatical in the United States and has remained there since.

His fields of study included:

  • Foundation and applications of the modern theory of shells incorporating non-classical effects and composed of advanced composite materials
  • Foundation of the theory and applications of sandwich type structures; Aeroelastic stability of flight vehicle structures
  • Nonlinear aeroelasticity of structures in supersonic and hypersonic flow fields; Aeroelastic and structural tailoring
  • Dynamic response and instability of elastic and viscoelastic laminated composite structures subjected to deterministic and random loading systems
  • Mechanical and thermal postbuckling of flat and curved shear-deformable elastic panels
  • Static, dynamic and aeroelastic feedback control of adaptive structures
  • Unsteady aerodynamics and magnetoaerodynamics of supersonic flows with applications
  • Optimization problems of aeroelastic structural systems
  • Theory of composite thin-walled beams and its application in aeronautical and mechanical constructions
  • Response and behavior of structures to underwater and in-air explosions
  • Multifunctional and Functionally Graded material structures.

Librescu received his Ph.D. in 1969 from Institute of Fluid Mechanics, Academy of Science of Romania.

From 1953 to 1975 he worked as a researcher at Institute of Applied Mechanics, Institute of Fluid Mechanics and Institute of Fluid Mechanics and Aerospace Constructions of Academy of Science of Romania.

From 1979 to 1986 he was Professor of Aeronautical and Mechanical Engineering at Tel-Aviv University. Since 1985 he was Professor at Virginia Tech.

Death

Professor Librescu was among the 33 people killed in the Virginia Tech massacre on April 16, 2007. He was killed in the Norris Hall Engineering Building. He sacrificed himself by holding onto a hatch preventing the gunman from entering the lecture hall while students attempted to escape through windows. He was 75 years old.

References

  1. Resume
  2. "Profesorul-erou, inventator si reputat om de stiinta", in Evenimentul Zilei, 17 April 2007
  3. ^ Israeli killed in Virginia massacre (YnetNews), April 17, 2007
  4. Faculty profile at Virginia Tech
  5. Broder, John. "32 Shot Dead on Virginia Tech Campus". New York Times. Retrieved 2007-04-17.

External links

Publications

Books
  • Librescu, L. and Song, O., Composite Thin-Walled Beams: Theory and Application, Springer, 615, 2005
  • Cederbaum, G., Elishakoff, I., Aboudi, J. and Librescu, L., Random Vibrations and Reliability of Composite Structures, Technomic Publishing Company, Inc., Lancaster-Basel, USA, pp. 191, 1992
  • Librescu, L., Elastostatics and Kinetics of Anisotropic and Heterogeneous Shell-Type Structures, Noordhoff International Publishing, Leyden, Netherlands, pp. 598, 1975
  • Librescu, L., Statics and Dynamic of Anisotropic and Heterogeneous Structures, (in Romanian), Publishing House of the Romanian Academy of Science, pp. 290, 1969
Book Chapters
  • Hohe, J. and Librescu, L., On the Effect of Transverse Core Compressibility on the Buckling of Sandwich Shells, Theory of Plates and Shells, (Eds. R. Kienzler, H. Altenback and I. Ott), Lecture Notes in Applied and Computational Mechanics, Springer Verlag, Vol. 16, pp. 61-68, 2004
  • Hasanyan, D., Librescu, L., Qin, Z. and Ambur, D. R., Flexural Wave Scattering at the Through Crack in a Current Carrying Plate, Problems of Mechanics of Deformable Body, (Edited by Professor V. S. Sarkisyan), Armenian Academy of Sciences, Bounded Volume Dedicated to Professor N. Ch. Harutyunyan, pp. 91-101, 2003
  • Hasanyan, D., Librescu, L. and Ambur, D. R., Nonlinear Vibration of Thermo-Elastic Plates in a Magnetic Field, Southampton, UK, WIT Press, Southampton, Boston, (Editor: Y. Shindo), Mechanics of Electromagnetic Material Systems and Structures, pp. 3-15, 2003
  • Librescu, L. and Hause, T., The Effects of Time-Dependent Pressure Pulses on Dynamic Response of Viscously Damped Anisotropic Sandwich Flat Panels in Problems of Mechanics of Thin Deformable Bodies, Published by the Academy of Sciences of Armenia, Erevan, Armenia, pp. 200-214, 2002
  • Marzocca, P., Librescu, L. and Silva, W. A., Nondestructive Flutter Instability Prediction Using Combined Analytical-Experimental Procedure, Recent Advances in Experimental Mechanics, (Editor: E. E. Gdoutos), Kluwer Academic Publishers, Dordrecht/Boston/London, 2002
Journals
  • G. Polli, L. Librescu and F. Mastroddi, Aeroelastic Response of Composite Aircraft Swept Wings Impacted by a Laser Beam, AIAA, Vol. 33, No, 2, pp. 382-391, 2006
  • Na, S. S., Librescu, L., Rim, S. N. and Yoon, G. C., Vibration and Dynamic Response Control of Non-Unifom Composite Rotating Blades, International Journal of Rotating Machinery, 2006, ID 13807, pp. 1-9, 2006
  • Librescu, L., Oh, S-Y. and Hohe, J., Dynamic Response of Anisotropic Sandwich Flat Panels to Underwater and In-Air Explosions, International Journal of Solids and Structures, Vol. 43, No. 13, pp. 3794-3816, June, 2006
  • Hause, T. and Librescu, L., Flexural Free Vibration of Sandwich Flat Panels with Laminated Anisotropic Face Sheets, Journal of Sound and Vibration, Vol. 297, Nos. 3-5, pp. 823-841, 2006
  • Librescu, L. and Marzocca, P.,, Advances in the Linear/Nonlinear Control of Aeroelastic Structural Systems, Acta Mechanica, Vol. 178, Nos 3-4, pp. 147-186, 2005
  • Hohe, J. and Librescu, L., Advances in the Structural Modeling and Behavior of Sandwich Panels, Mechanics of Advanced Materials and Structures, Vol. 11, No. 4-5, pp. 395-424, 2004
  • Librescu, L., Hasanyan, D. and Ambur, D. R., Electromagnetically Conducting Elastic Plates in a Magnetic Field: Modeing and Dynamic Implications, International Journal of Nonlinear Mechanics, Vol. 39, Issue 5, pp. 723-739, 2004
  • Librescu, L., Marzocca, P. and Silva, W. A., Linear/Nonlinear Supersonic Panel Flutter in a High Temperature Field, Journal of Aircraft, Vol. 41, No. 4, pp. 918-924, 2004
  • Chandiramani, N. K., Librescu, L., Saxena, V. and Kumar, A., Optimal Vibration Control of a Rotating Composite Beam with Distributed Piezoelectric Sensing and Actuation, Smart Materials and Structures, Vol. 13, pp. 433-442, 2004
  • Oh, S.Y., Librescu, L. and Song, O., Vibration and Instability of Functionally Graded Circular Cylindrical Spinning Thin-Walled Beams, Journal of Sound and Vibration, (in press), 2004
  • Librescu, L., Na, S., Marzocca, P., Chung C. and Kwak, M., Active Aeroelastic Control of 2-D Wing-Flap Systems Operating in an Incompressible Flowfield an Impacted by a Blast Pulse, Journal of Sound and Vibration, (in press), 2004
  • Hause, T. and Librescu, L., Dynamic Response of Anisotropic Sandwich Flat Panels to Explosive Pressure Pulses, International Journal of Impact Engineering, (in press), 2004
  • Hasanyan, D., Librescu, L., Qin, Z and Ambur D.R., Magneto-thermo-elastokinetics of Geometrically Nonlinear Laminated Composite Plates: Foundation of the Theory Part I, Journal of Sound and Vibration, (in press), 2004
  • Qin, Z., Hasanyan, D. Librescu, L. and Ambur, D.R., Magneto-thermo-elastokinetics of Geometrically Nonlinear Laminated Composite Plates: Vibration and Wave Propagation, Journal of Sound and Vibration, (in press), 2004
  • Hasanyan, D., Librescu, L., Qin, Z. and Ambur, D.R., Nonlinear Vibration of Finitely-Electroconductive Plate Strips in an Axial Magnetic Field, Computers & Structures, (in press), 2004
  • Librescu, L., Marzocca, P. and Silva, W. A., Aeroelasticity of 2-D Lifting Surfaces with Time-Delayed Feedback Control, Journal of Fluids and Structures, (in press), 2004
  • Na, S. S., Librescu, L. and Huang, H., Dynamics and Active Bending Vibration Control of Turbomachinery Rotating Blades Featuring Temperature-Dependent Material Properties, Journal of Thermal Stresses, Vol. 24, pp. 625-644, 2004
  • Hasanyan, D., Librescu, L. and Damodar, A., A Few Results on the Foundation of the Theory and Behavior of Nonlinear Magnetoelastic Plates Carrying an Electric Current, International Journal of Engineering Science, Vol. 42, Nos. 15-16, pp. 1547-1572, 2004
  • Chandiramani, N. K., Librescu, L., Saxena, V. and Kumar, A., Optimal Vibration Control of a Rotating Composite Beam with Distributed Piezoelectric Sensing and Actuation, Smart Materials and Structures, Vol. 13, pp. 433-442, 2004
  • Marzocca, P., Librescu, L. and Silva, W. A., Time-Delay Effects on Linear/Nonlinear Feedback Control of Simple Aeroelastic Systems, Journal of Guidance, Control and Dynamic, (in press), 2004
  • Librescu, L., Oh, S-Y and Hohe, J., Linear and Non-Linear Dynamic Response of Sandwich Panels to Blast Loading, Composites B, Special Issue on Marine Composites, Vol. 35, No. 6-8, pp. 673-683, September, 2004
  • Yuan, Y., Yu, P., Librescu, L. and Marzocca, P., Aeroelasticity of Time-Delayed Feedback Control of 2-D Supersonic Lifting Surfaces, Journal of Guidance, Control and Dynamics, Vol. 27, No. 5, pp. 797-803, 2004
  • Na, S. S., Librescu, L. and Shim, J. H., Modified Bang-Bang Vibration Control Applied to Adaptive Thin-Walled Beam Cantilevers, AIAA Journal, Vol. 42, No. 8, pp. 1717-1721, 2004
  • Marzocca, P., Silva, W. A. and Librescu, L., Non-Linear Open/Closed Loop Aeroelastic Analysis of Airfoil via Volterra Series, AIAA Journal, Vol. 42, No. 4, pp. 673-686, 2004
  • Hohe, J. and Librescu, L., Core and Face-Sheet Anisotropy in Deformation and Buckling of Sandwich Panels, AIAA Journal, Vol. 42, No. 1, pp. 149-158, January, 2004
  • Qin, Z., Librescu, L., Hasanyan, D. and Ambur, D. R., Magnetoelastic Modeling of Circular Cylindrical Shells Immersed in a Magnetic Field, Part I: Magnetoelastic Loads Considing Finite Dimensional Effects, International Journal of Engineering Science, Vol. 41, pp. 2005-2022, 2003
  • Librescu, L., Oh, S-Y., and Song, O., Spinning Thin-Walled Beams Made of Functionally Graded Materials: Modeling, Vibration and Instability, European Journal of Mechanics A/Solids, Vol. 23, No. 3, pp. 499-515, 2003
  • Na, S. S., Librescu, L. and Shim, J. K., Modeling and Bending Vibration Control of Nonuniform Thin-Walled Rotating Beams Incorporating Adaptive Capabilities, International Journal of Mechanical Sciences, Vol. 45, No. 8, pp. 1347-1367, 2003
  • Chandiramani, N. K., Shete, C. D. and Librescu, L., Vibration of Higher-Order Shearable Pretwisted Rotating Composite Blades, International Journal of Mechanical Sciences, Vol. 45, pp. 2017-2041, 2003
  • Librescu, L., Qin, Z. and Ambur, D. R., Implications of Warping Restraint on Statics and Dynamics of Elastically Tailored Thin-Walled Composite Beams, International Journal of Mechanical Sciences, Vol. 45, No. 8, pp. 1247-1267, 2003
  • Oh, S. Y., Librescu, L. and Song, O., Vibration of Turbomachinery Rotating Blades Made-up of Functionally Graded Materials and Operating in a High Temperature Field, Acta Mechanica, Vol. 166, No. 2, pp. 69-87, 2003
  • Song, O., Yoon, I. and Librescu, L., Thermally Induced Bending Vibration of Composite Spacecraft Booms Subjected to Solar Heating, Journal of Thermal Stresses, Vol. 26, No. 8, pp. 829-843, August, 2003
  • Qin, Z., Hasanyan, D., Librescu, L. and Ambur, D. R., Magnetoelastic Modeling of Circular Cylindrical Vibration, International Journal of Engineering Science, Vol. 41, pp. 2023-2046, 2003
  • Qin, Z. and Librescu, L., Aeroelastic Instability of Aircraft Wings Modeled as Anisotropic Composite Thin-Walled Beams in Incompressible Flow, Journal of Fluids and Structures, Vol. 19, No. 1, pp. 43-61, August, 2003
  • Librescu, L., Hasanyan, D., Qin, Z. and Ambur, D. R., Nonlinear Magneto-Thermo-Elasticity of Anisotropic Plates Immersed in a Magnetic Field, Journal of Thermal Stresses, Vol. 26, Nos. 11-12, pp. 1277-1304, November-December, 2003
  • Qin, Z. and Librescu, L., Dynamic Aeroelastic Response of Aircraft Wings Modeled as Anisotropic Thin-Walled Beams, Journal of Aircraft, Vol. 40, No. 3, pp. 532-543, 2003
  • Oh, S. Y., Song, O. and Librescu, L., Effects of Pretwist and Presetting on Coupled Bending Vibrations of Rotating Thin-Walled Composite Beams, International Journal of Solids and Structures, Vol. 40, pp. 1203-1224, 2003
  • Oh, S. Y., Librescu, L. and Song, O., Thermoelastic Modeling and Vibration of Functionally Graded Thin-Walled Rotating Blades, AIAA Journal, Vol. 41, No. 10, pp. 2051-2060, 2003
  • Hohe, J. and Librescu, L., A Nonlinear Theory for Doubly Curved Anisotropic Sandwich Shells with Transversely Compressible Core, International Journal of Solids and Structures, Vol. 40, pp. 1059-1088, 2003
  • Qin, Z., Librescu, L. and Marzocca, P., Aeroelasticity of Composite Aerovehicle Wings in Supersonic Flow, Journal of Spacecraft and Rockets, Vol. 40, No. 2, pp. 162-173, 2003
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