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Varbinka Valeva Valeva

Position: Assoc. Proffessor

Department: Solid Mechanics

Room number: 303

Phone: (+359) 2 979 6438

E-mail: valeva@imbm.bas.bg

 

Scientific degrees, institution, year:

 

Mathematician 1975-1977

Institute of Mechanics and Biomechanics,

Bulgarian Academy of Sciences, Sofia

Ph.D. Student Phys.-Math.Sci. 1977-1980

Institute for Problems of Mechanics,

Russian Academy of Sciences, Moscow

Research Fellow, Dr. 1981-1988

Institute of Mechanics and Biomechanics,

Bulgarian Academy of Sciences, Sofia

Assoc. Proffessor, Dr. 1989-…

Institute of Mechanics (IMech),

Bulgarian Academy of Sciences, Sofia

 

Fields of Research:

Analytical and Numerical Modeling (BEM) of composite materials and structures;

Identification, Homogenization of Material properties
Extended Information.

Extended Information

Selected Publications:

  1. Ivanova, J., V. Valeva.,  T. Petrova, J. Ivanova, W. Becker, Interfacial debonding of a piezoelastic bi-material structure applicable for wind rotor blades, Mechanics of Advanced Materials and Structures, 2013 (accepted)
  2. Valeva, V., J. Ivanova, Shear lag and boundary element methods for study the carbon nanofibre reinforced composites, In: Proc. 12th National Congress of Theoretical and Applied Mechanics, 23-26 September 2013, St.St. Constantine and Helena Resort, Varna, Bulgaria, 2013 (accepted).
  3. Yanakieva, А., V. Valeva, J. Ivanova, Z. Mr?z, Pull-out analysis for Carbon nanotube/metal (ceramic) composites under static and dynamic loading, In: Proc. 12th National Congress of Theoretical and Applied Mechanics, 23-26 September 2013, St.St. Constantine and Helena Resort, Varna, Bulgaria, 2013 (accepted).
  4. Mroz, Z., A. Yanakieva, V. Valeva, J. Ivanova, Analytical pull-out anlysis for carbon nanotube-cement composites under static loading, Compt. rend. Acad. bulg. Sci., 2013, 66(3), pp. 431-438, ISSN: 1310-1331.
  5. Ivanova, J., V. Valeva, T. Petrova, W. Becker. Hygropiezothermoelastic Interface Delamination of a Bi-material Plate. In: Proceedings of the 8th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES), 22-27 September 2013, Dubrovnik, Croatia, 2013, pp. 0929 1-12, ISSN: 1847-7178.Iva
  6. nova J., V. Valeva, W. Becker, Elastic-brittle and cohesive interface behavior of a bi-material structure under dynamic time harmonic loading. Application to a wind turbine rotor blade, Compt. rend. Acad. bulg. Sci., 2012, 65(9), pp. 1275-1284, ISSN: 1310-1331.
  7. Valeva, V., J. Ivanova, Modeling of carbon nanotubes reinforced composite. Part 1. Theory – Shear lag, In:  Scientific  Proc. of  Sci. Tech. Union Mech. Eng., 27th Int. Сonf. ”NDT days 2012”, June 11-15 2012, Sozopol, Bulgaria,  year XX, 2012,  Vol. 1 (133), pp. 232-235,  ISSN: 1310-3946.
  8. Gambin B., J. Ivanova, V. Valeva, G. Nikolova, Precracking and interfacial delamination in bi-material structure. Static and dynamic loadings, Acta Mechanica Sinica, 2011, 27(1), pp. 80-89, ISSN: 0567-7718
  9. Valeva V., J. Ivanova, B. Gambin, BEM and Shear lag method for interface problem of bi-material structure under static loading, J. Theor. Appl. Mech. (Poland), 2011, 49(1), pp. 17-29, ISSN: 1429-2955.
  10. Ivanova J., L. Weiler, J. Pouquet, V. Valeva, D. Gross, R.H. Martin , Validation of an analytical model for sliding wear of ceramic-metal composites with experimental data,, Compt. rend. Acad. Bulg. Sci., 2010, 63(8), pp. 1211-1218, ISSN: 1310-1331.
  11. Ivanova J., V. Valeva, F. Pastrone, Wave Propagation in Ceramic-Metal Composites with Interpenetrating Microstructure, Compt. Rend. Acad. Bulg. Sci.,  2009, 62(3), pp. 385-392, ISSN: 1310-1331.
  12. Ivanova J., V. Valeva, D. Gross, Analytical Model for Sliding Wear of Ceramic-Metal Composite, Compt. Rend. Acad. Bulg. Sci., 2008, 61(5), pp. 653-660. ISSN: 1310-1331.
  13. Nikolova G., J, Ivanova, V. Valeva, Z. Mroz, Mechanical and thermal loading of two-plate structure, Compt. Rend. Acad. Bulg. Sci., 2007, 60(7), pp. 735-742. ISSN: 1310-1331.
  14. Ivanova J., V. Valeva, Z. Mroz, Mechanical modeling of the delamination of bi-material plate structure,  J. Theor. Appl. Mechanics, Sofia, 2006, 36(4), pp. 39-54. ISSN: 1313-9665.
  15. Valeva V., J. Hristova, J. Ivanova, Numerical prediction of the strain state of thermoset matrix/mineral filler composite plates, Mechanics of Composite Materials, 2005, 41(2), pp. 145-156. ISNN: 0191-5665.
  16. Ivanova J., V. Valeva, Z. Mroz, Interphase Model for a Multilayer Structures Applied in Heat Conduction Problems, J. Theor. Appl. Mechanics, Sofia, 2004, 34(4), pp. 15-30, ISSN: 1313-9665.
  17. Valeva V., J. Ivanova, Z. Mroz, Parametric Analysis of the Decay Rate of End Effects in Heat Conduction for Multi-layered Semi-infinite Sandwich Structures, J. Theor. and Appl. Mechanics, Sofia, 2002, 32(4), pp. 39-52. ISSN: 1313-9665.
  18. Hristova J., V. Valeva, J. Ivanova, Aging and filler effects on the creep model parameters of thermoset composites, J. Composite Science and Technology, 2002, 62, pp. 1097-1103. ISSN: 0266-3538.
  19. Baltov A., V. Valeva, J. Ivanova, Modeling of materials sensitive to the type of rheological processes, Facta Universitatis, Series: Mechanics, Automatic Control and Robotics, 2000, 2(10), pp. 1283-1291. ISSN: 0354-2009.
  20. Baltov A., V. Valeva, J. Ivanova, On the Modelling of Masonry as a Sensitive to the Type of Loading Composite. Part II. Mechano-Mathematical Modelling and Applications, J. of Material Sciences and Technology, 2000, 8(1), pp. 12-19. ISSN: 0861-9786.
  21. Baltov A., V. Valeva, J. Ivanova, On the Modelling of Masonry as a Sensitive to the Type of Loading Composite. Part I. Basic Assumptions and Homogenization, J. of Material Sciences and Technology, 1999, 7(4), pp. 3-13. ISSN: 0861-9786.
  22. Valeva V., J. Ivanova, Strength numerical analysis of a composite material with holes. In: STRENGTH THEORY: Application, Development & Prospects for 21st Century, M.H. Yu and Fan S.G. ed., Science Press, New York and Beijing, 1998, pp. 359-364.
  23. Valeva V., J. Ivanova, F. Pastrone, Numerical modeling of wave scattering from a separated inclusion in a copmposite material, Compt. Rend. Acad. Bulg. Sci., 1997, 50(7-8), pp. 13-16. ISSN: 1310-1331.
  24. Valeva V., J. Ivanova, BEM for Determination of Elastic Effective Characteristics of Composite Material, Compt. Rend. Acad. Bulg. Sci., 1997, 50(5), pp. 17-20. ISSN: 1310-1331.
  25. Valeva V., Modelling the Separation of Physically Nonlinear Material from the Inclusions by BEM, (Int. Conf. on Mechanics, Physics and Structure of Materials, August 19-24, 1990, Thessaloniki, Greece, Abstracts pp. 117-118), J. of Mechanical Behavior of Materials, 1994, 5(2), pp. 129-139.
  26. Valeva V., J. Ivanova, Problem of wave scattering from a separated inclusion, Trans. 12th Int. Conf. on SMiRT, MPA, August 15-20, 1993, Stuttgart, Karl F. Kussmaul (ed.), Elsevier Science Publishers B.V., North-Holland, vol. B: Computational Mechanics, 1993, pp. 345-360.
  27. Valeva V., L. Hadjikov, On the problem of separation of physically nonlinear matrix from the inclusion using BEM, J. of Advances in Engineering Software, 1992, 14, pp. 285-289. ISSN: 0965-9978.
  28. Ivanova J., P. Dineva, V. Valeva, L. Hadjikov, Design sensitivity analysis for shape optimization by the BEM, Int. J. of Engineering Analysis with BE, U.K., 1991, 8(5), pp. 218-223. ISSN: 0955-7997.

Recent Projects:

- DFG Projects (2012, 2013, 2014)
- KMM-NoE Project no. NMP3-CT-2004-502243
- Joint research projects with University of Torino (Italy)
- Joint research projects with Institute of Fundamental Technological Research, Warsaw (Poland)
- IMCO Copernicus ERBICC15CT9

Membership:

Union of Bulgarian Mathematician


Modified date:07-06-2016