Mechanical Engineering
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Dr. Valery Levitas

Contact Information

Dr. Valery Levitas
Department of Mechanical Engineering
Texas Tech University
Lubbock, TX 79409-1021

Tel: (806)742-3563 ext. 244
Fax: (806)742-3540
email: valery.levitas@ttu.edu

Education

Experience

Teaching Areas

Reasearch Interests

Selected Publications (from 274)

    1. Levitas V.I. Large Deformation of Materials with Complex Rheological Properties at Normal and High Pressure. New York, Nova Science Publishers, 1996.
    2. Levitas V.I., Pantoya M. and Watson K. W. Melt dispersion mechanism for fast reaction of aluminum particles: extension for micron scale particles and fluorination. Applied Physics Letters, 2008 (in press).
    3. Levitas V.I. and Ozsoy I. B. Micromechanical modeling of stress-induced phase transformations. Part 1. Thermodynamics and kinetics of coupled interface propagation and reorientation. Int. J. Plasticity, 2008, doi: 10.1016/j.ijplas.2008.02.004.  pdf
    4. Levitas V.I. and Ozsoy I. B. Micromechanical modeling of stress-induced phase transformations. Part 2. Computational algorithms and examples. Int. J. Plasticity, 2008, doi: 10.1016/j.ijplas.2008.02.005.  pdf
    5. Levitas V.I., Pantoya M. and Dikici B. Melt-dispersion versus diffusive oxidation mechanism for aluminum nanoparticles: critical experiments and controlling parameters. Applied Physics Letters, 2008, Vol. 92, No. 1, 011921. pdf
    6. Levitas V.I. and Lee D-W. Athermal resistance to an interface motion in phase field theory of microstructure evolution. Physical Review Letters, 2007, Vol. 99, 245701. pdf
    7. Levitas, V. I., Henson, B. F., Smilowitz, L. B,  Zerkle, D. K. and Asay, B. W., Coupled phase transformation, chemical decomposition, and deformation in plastic-bonded explosive: Simulations.  J. Appl. Physics, 2007, Vol. 102, No. 11, 113520.  pdf
    8. Levitas, V. I., Henson, B. F., Smilowitz, L. B,  Zerkle, D. K. and Asay, B. W., Coupled phase transformation, chemical decomposition, and deformation in plastic-bonded explosive:
      Models. J. Appl. Physics, 2007  Vol. 102, No. 11, 113502 (1-14); selected and published
      by the  Virtual Journal of Nanoscale Science & Technology, 2007,  December 17  issue.  pdf
    9. Levitas V. I. and Zarechnyy O. M. Plastic flow under compression and shear in rotational diamond anvil cell: Finite - element study. APL, 2007, Vol.91, No.14, 141919.  pdf
    10. Levitas V. I.,  Asay B. W., Son S. F. and Pantoya M. Mechanochemical  Mechanism for Fast Reaction of Metastable Intermolecular Composites Based on  Dispersion of Liquid Metal. J. Applied Physics,  2007, Vol. 101, No. 7, 083524 (1-20).  pdf
    11. Levitas V.I. , Ozsoy I. B.  and Preston D. L.  Interface reorientation during coherent phase transformations. Europhysics Letters,  2007, Vol. 78, 16003 . pdf
    12. Levitas V. I., Smilowitz L. B, Henson B. F., and Asay B. W. Nucleation mechanism for reconstructive solid-solid phase transitions via melt mediated nano-cluster transformation. Applied Physics Letters, 2006, Vol. 89, 231930. pdf
    13. Levitas V. I., Asay B. W., Son S. F. and Pantoya M. Melt dispersion mechanism for fast reaction of nanothermites. Applied Physics Letters, 2006, Vol. 89, No. 7, 071909.  pdf
    14. Levitas V. I. and Zarechnyy O. M. Kinetics of strain-induced structural changes under high pressure. J. Physical Chemistry B, 2006, Vol. 110, 16035-16046.       pdfÂ
    15. Levitas V.I., Lee D-W.and  Preston D. Phase field theory of surface- and size-induced microstructures. Europhysics Letters, 2006 Vol. 76, No. 1, 81-87.  pdfÂ
    16. Levitas V.I., Preston D. and Lee D-W. Ginzburg-Landau theory of microstructures: stability, transient dynamics, and functionally graded nanophases. Europhysics Letters, 2006, Vol. 75, No. 1, 84-90.  pdf
    17. Levitas V. I., Henson B. F., Smilowitz L. B, and Asay B. W. Solid-solid phase transformation via internal stress-induced virtual melting, significantly below the melting temperature. Application to HMX energetic crystal. J. Physical Chemistry B, 2006, Vol. 110, No. 20, 10105-10119.  pdf
    18. Levitas V. I., Ma Y., Hashemi J., Holtz M. and Guven N. Strain-induced disorder, phase transformations and transformation induced plasticity in hexagonal boron nitride under compression and shear in a rotational diamond anvil cell: in-situ X-ray diffraction study and modeling. Journal of Chemical Physics, 2006, Vol. 25, 044507, pp. 1-14  pdf
    19. Ma, Y. Z., Levitas, V., and Hashemi, J. X-ray diffraction measurements in a rotational diamond anvil cell. J. of Physics and Chemistry of Solids, 2006, Vol. 67, pp. 2083-2090.  pdf
    20. Levitas V. I., Smilowitz L. B, Henson B. F., and Asay B. W. Interfacial and volumetric kinetics of the b®d phase transition in the energetic nitramine octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine based on the virtual melting mechanism. Journal of Chemical Physics, 2006, Vol. 124, 026101.  pdf
    21. Ma Y., Selvi E., Levitas V.I.and Hashemi J. Effect of shear strain on the phase transition of iron: a new approach in the rotational diamond  anvil cell, J. Phys.: Cond. Matt., 2006, Vol. 18, 1075-1082.  pdf
    22. Levitas V.I. Crystal-amorphous and crystal-crystal  phase transformations via virtual melting. Phys. Review Letters,  2005, Vol. 95, No. 7, 075701.  pdf
    23. Levitas V. I., Henson B. F., Smilowitz L. B, and Asay B. W. Solid-solid phase transformation via internal stress-induced virtual melting: additional confirmations. Applied Physics Letters, 2005, Vol. 87, No. 1, 071912.  pdf
    24. Levitas V.I., Preston D.L. Thermomechanical lattice instability and phase field theory of martensitic phase transformations, twinning and dislocations at large strains. Physics Letters A,  2005, Vol. 343, 32-39. pdf
    25. Levitas, V. I., Ma, Y. Z., and Hashemi, J. Transformation-induced plasticity and cascading structural changes in hexagonal boron nitride under high pressure and shear. Appl. Phys. Lett, Vol. 86 (2005), 071912.  pdf
    26. Levitas, V. I., Hashemi, J., and Ma, Y. Strain-induced disorder and phase transformation in hexagonal boron nitride under quasi-homogeneous pressure: in-situ X-ray study in a rotational diamond anvil cell. Europhysics Letters, 2004, Vol. 68, No. 4, pp. 550-556. pdf
    27. Levitas V. I. High-Pressure Mechanochemistry: Conceptual Multiscale Theory and Interpretation of Experiments. Phys. Rev. B, 2004, 70, No. 18, 184118, pp. 1-24. pdf
    28. Idesman A. V., Levitas V. I. , Preston D. L., and Cho J.-Y. Finite Element Simulations of Martensitic Phase Transitionsand Microstructure Based on Strain Softening Model. J. Mechanics and Physics of Solids, 2005,Vol. 53, No. 3, pp. 495-523. pdf
    29. Levitas V. I., Idesman A. V. and Preston D. Microscale simulation of evolution of martensitic microstructure. Phys. Review Letters, 2004, 2004, 93, 105701 (Selected and reproduced in Virtual J. Nanoscale Science Technology, 2004, Sept. 5). pdf
    30. Levitas V. I. Continuum Mechanical Fundamentals of Mechanochemistry. In: High Pressure Surface Science and Engineering. Section 3. Institute of Physics, Bristol, Eds. Y. Gogotsi and V. Domnich, 2004, pp. 159-292.pdf
    31. Levitas V. I., Henson B. F., Smilowitz L. B, and Asay B. W. Solid-solid phase transformation via virtual melt, significantly below the melting temperature. Phys. Rev. Letters, 2004, Vol. 92, No. 23, 235702 (Selected and reproduced in Virtual J. Nanoscale Sci. & Tech., 2004, June 21) . pdf
    32. Levitas V. I. A microscale model for strain-induced phase transformations and chemical reactions under high pressure. Europhysics Letters, 2004, Vol. 66, No. 5, 687-693. pdf
    33. Levitas V. I. Strain-induced nucleation at a dislocation pile-up: a nanoscale model for high pressure mechanochemistry. Phys. Letters A, 2004, Vol. 327, 180-185.pdf
    34. Levitas V.I. and Preston D. Three-dimensional Landau theory for multivariant stress-induced martensitic phasetransformations. Part I and II. Phys. Rev. B, 2002, Vol. 66, 134206(1-9) and 134207(1-15).pdf-1 pdf-II
    35. Levitas V.I. , Preston D and Lee D-W. Three-dimensional Landau theory for multivariant stress-induced martensitic phasetransformations. Part III. Alternative potentials, critical nuclei, kink solutions, and dislocation theory. Phys. Rev. B, 2003, Vol. 68, 134201 (1-24). pdf.file
    36. Levitas V.I. and Shvedov, L.K. Low Pressure Phase Transformation from Rhombohedral to Cubic BN: Experiment and Theory. Physical Review B, 2002, Vol. 65, No. 10, 104109(1-6). pdf.file
    37. Levitas V.I., Idesman A.V., Olson G.B. and Stein E. Numerical Modeling of Martensite Growth in Elastoplastic Material. Philosophical Magazine, A, 2002, Vol. 82, No. 3, 429-462.pdf.file
    38. Mielke A., Theil F., Levitas V.I. A Variational Formulation of Rate-Independent Phase Transformations Using an Extremum Principle. Archive for Rational Mechanics and Analysis, 2002, Vol 162, 137-177 . pdf.file Essential Science Indicator: Emerging Research Fronts Paper in Mathematics in August 2006
    39. Levitas V.I. Critical Thought Experiment to Choose the Driving Force for Interface Propagation in Inelastic Materials. Int. J. Plasticity, 2002, Vol. 18, pp. 1499-1525. pdf. file
    40. Leshchuk A. A., Novikov N. V., Levitas V. I. Thermomechanical Model of Phase Transformation Graphite to Diamond. J. of Superhard Materials, 2002, No. 1, pp. 49-57.pdf.file
    41. Leshchuk A. A., Novikov N. V., Levitas V. I. Computer Simulation of Physical and Mechanical Processes Running in the Reaction Cells of High-Pressure Installations in the Course of Synthesis of Diamonds. Strength of Materials, 2001, Vol.33, No. 3, pp. 277-292.
    42. Levitas V.I Structural Changes without Stable Intermediate State in Inelastic Material. Part I and II Int. J. Plasticity, 2000 , Vol. 16, No. 7-8, 805-849 and 851-892.
    43. Idesman A. V., Levitas V. I., Stein E. Structural Changes In Elastoplastic Materials: A Unified Finite Element Approach For Phase Transformation, Twinning And Fracture. Int. J. Plasticity, 2000, Vol. 16, No. 7-8, 893-949. pdf.file
    44. Theil F., Levitas V. I. A Study Of A Hamiltonian Model For Phase Transformations Including Microkinetic Energy. Mathematics and Mechanics of Solids, 2000, Vol. 5, No. 3, 337-368. pdf.file
    45. Levitas V. I. Thermomechanical and Kinetic Approaches to Diffusional-Displacive Phase Transitions in Inelastic Materials. Mech. Res. Commun., 2000, Vol. 27, No. 2, pp. 217-227. pdf.file
    46. Levitas V. I., Idesman A. V., Olson G. B. Continuum modeling of strain-induced martensitic transformation at shear-band intersections. Acta Materialia, 1999, Vol. 47, No. 1, 219-233. pdf.file
    47. Idesman A. V., Levitas V. I., Stein E. Elastoplastic materials with martensitic phase transition and twinning at finite strains: numerical solution with the finite element method. Comp. Meth. in Appl. Mech. and Eng., 1999, Vol. 173, No.1-2, 71-98. pdf.file
    48. Novikov, N. V., Polotnyak, S. B., Shvedov L. K. and Levitas, V. I. Phase transitions under compression and shear in diamond anvils: experiment and theory. Journal of Superhard Materials, 1999, Vol. 3, 39-51. pdf.file
    49. Levitas, V. I., Idesman, A. V., Stein, E. Shape Memory Alloys: Micromechanical Modeling and Numerical Analysis of Structures. J. Intelligent Material System and Structures, 1999, Vol. 10, No. 12, 983-996. pdf.file
    50. Levitas V. I. A new look at the problem of plastic spin based on stability analysis. J. Mech. Phys. Solids, 1998, Vol. 46, No. 3, pp. 557-590. pdf.file
    51. Levitas V. I., Nesterenko V. F., Meyers M.A. Strain-induced structural changes and chemical reactions. Part I and II. Acta Materialia, 1998, Vol. 46, No. 16, 5929-5946 and 5947-5963.
    52. Levitas V. I. Thermomechanical theory of martensitic phase transformations in inelastic materials. Int. J. Solids and Structures, 1998, Vol. 35, No. 9-10, 889-940. pdf.file
    53. Levitas V. I., Idesman A. V., Stein E. Finite element simulation of martensitic phase transitions in elastoplastic materials. Int. J. Solids and Structures, 1998, Vol. 35, No. 9-10, pp. 855-887. pdf.file
    54. Levitas, V. I., Idesman, A. V., Stein, E., Spielfeld, J. and Hornbogen, E. A Simple Micromechanical Model for Pseudoelastic Behavior of CuZnAl Alloy. J. Intelligent Material System and Structures, 1998, Vol. 9, No. 5, 324-334. pdf.file
    55. Levitas, V. I. Thermomechanics and kinetics of generalized second-order phase transitions in inelastic materials. Application to ductile fracture. Mech. Res. Commun., 1998, Vol. 25, No. 4, pp. 427-436. pdf.file
    56. Levitas, V. I. Phase transition in a plastic layer: finite strains analytical solution. ZAMM, 1998, Vol. 78, Supplement 1, pp. S117-S120. pdf.file
    57. Levitas V. I. Phase transitions in elastoplastic materials: continuum thermomechanical theory and examples of control. Part I and II. J. Mech. Phys. Solids, 1997, V. 45, No. 6, 923-947; No. 7, 1203-1222.
    58. Levitas, V. I. and Stein, E. Simple micromechanical model of thermoelastic martensitic transformations. Mech. Res. Commun., 1997, 24, No. 3, pp. 309-318. pdf.file
    59. Idesman A. V., Levitas V. I., Stein E. Simulation of martensitic phase transition progress with continuous and discontinuous displacements at the interface. Computational Materials Science, 1997, Vol. 9, No. 1-2, pp. 64-75. pdf.file
    60. Levitas, V. I. Principle of minimum dissipation rate at time t + Dt for the plastic spin. Mech. Res. Commun., 1997, Vol. 24, No. 6, pp. 639-648. pdf.file
    61. Levitas V.I., Polotnyak S.B., and Idesman A.V. Large Elastoplastic Deformations and Stress State of Deformable Gasket of High Pressure Apparatus with Diamond Anvils. Strength of Materials, 1996, No. 3, pp. 221-227. pdf.file
    62. Levitas, V. I. Theory of martensitic phase transformations in inelastic materials in local description. Mech. Res. Commun., 1996, Vol. 23, No. 5, pp. 495-503. pdf.file
    63. Levitas, V. I. Some relations for finite inelastic deformation of microheterogeneous materials with moving discontinuity surfaces. IUTAM Symposium on Micromechanics of Plasticity and Damage of Multiphase Materials} (Eds. A. Pineau & A. Zaoui). Proceedings of IUTAM Symposium. Paris, France, 1996, pp. 313-320. pdf.file
    64. Levitas V. I. The postulate of realizability: formulation and applications to post-bifurcation behavior and phase transitions in elastoplastic materials. Part I and II. Int. J. Eng. Sci., 1995, Vol. 33, No. 7, pp. 921- 970 (Distinguished Paper Award).
    65. Idesman A. V., Levitas V. I. Finite element procedure for solving contact thermoplastic problems at large strain, normal and high pressures. Comp. Meth. in Appl. Mech. and Eng., 1995, Vol. 126, No. 1- 2/15, pp. 39-66. pdf.file
    66. Levitas, V. I. Thermomechanics of martensitic phase transitions in elastoplastic materials. Mech. Res. Commun., 1995, Vol. 22, No. 1, pp. 87-94. pdf.file
    67. Levitas, V. I. Thermomechanical description of pseudoelasticity - the threshold-type dissipative force with discrete memory. Mech. Res. Commun., 1994, Vol. 21, No. 3, pp. 273-280. pdf.file
    68. Levitas, V. I. Plasticity theory of microinhomogeneous materials at large strain gradient. Mech. Res. Commun., 1994, Vol. 21, No. 1, pp. 11-17. pdf.file
    69. Novikov N.V., Levitas V.I., Polotnyak S.B., and Potemkin M.M. Method of Numerical Optimization of the Design of High-Pressure Apparatus with Diamond Anvils. Strength of Materials, 1994, Vol. 26, No. 4, pp. 294-302. pdf.file
    70. Novikov N.V., Levitas V.I., and Shestakov S.I. Numerical Modeling of Strength and Longevity of Structures with Allowance for Scale Effect. Communication 1. Substantiation of Strength and longevity criterion. Strength of Materials, 1991, No. 5, pp. 527-533. pdf.file
    71. Novikov N.V., Levitas V.I., and Shestakov S.I. Numerical Modeling of Strength and Longevity of Structures with Allowance for Scale Effect. Communication 2. Investigation of the Strength and Longevity of Hard-Alloy Die for High Pressure Apparatus.Strength of Materials, 1991, No. 6, pp. 635-642. pdf.file
    72. Novikov N.V., Shestakov S.I., Levitas V.I., Borimskiy A.I., and Idesman A.V. Numerical Modeling of Strength and Longevity of Structures with Allowance for Scale Effect. Communication 3. Investigation of the Stressed State, Strength and Longevity of Belt-Type High-Pressure Apparatus. Strength of Materials, 1991, No. 6, pp. 635-642. pdf.file
    73. Novikov N.V., Levitas V.I., Shestakov S.I. Fundamentals of Strength and Durability Calculations for the Elements of High Pressure Apparatus. Physica, 1986, 139 \& 140 B, pp. 782-784.  pdf
    74. Levitas V.I. and Dushinskaya G.V. Stress Distribution in a Deformable Gasket of Toroidal High Pressure Equipment. Journal of Superhard Materials, 1983, No. 5, pp. 6-10. pdf.file

Curriculum Vita

Honors and Awards

Expanded  Publications

Group for Mechanochemistry and Synthesis of New Materials

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