Nelli Alexandrova

Departamento de Matemática e Engenharias
Universidade da Madeira

Campus Universitário da Penteada
9000-390 Funchal
Portugal

Telefone: +351 291705175
Fax: +351 291705199
Email: nelli(at)uma.pt
www: http://dme.uma.pt/people/faculty/nelli.alexandrova/
Office: Room 2.111

Actividade Profissional

  • Assistant Professor, Departamento de Matemática e Engemharias, Universidade da Madeira, Portugal, desde 2007 
  • Research Associate, Departamento de Engenharia Civil, Universidade de Aveiro Portugal, 2003 - 2007
  • Research Associate, Departamento de Engenharia Mecânica, Universidade de Aveiro Portugal, 2001 - 2002
  • Mathematics Adjunct Faculty, College of Allegheny County, Monroeville, PA, USA, 2000 - 2001
  • Research Associate at Department of Applied Mechanics, Bauman Moscow State Technical University, Moscow, Russia, 1995 -1999
  • Assistant Professor at Department of Theor. &Appl. Mechanics, Voronezh State University, Voronezh, Russia, 1991 -1995
  • Visiting Professor, in collaboration, Bialystok Technical University, Poland, 2006 - 2007
  • Visiting Professor, in collaboration, Seoul National University, South Korea, 2004 - 2005
  • Mathematics Adviser, in collaboration, Parkvale Bank, USA, 1999 - 2000
  • Joint Work, in collaboration, Novi Sad University, Yugoslavia, 1995 - 2006

Habilitações Académicas

  • Doctor of Science in Engineering, 2000
  • Doctor of Science (Ph.D.) in Applied Mathematics and Mechanics, 1992
  • Licensed Scientific Researcher in the area of Solid Mechanics, 1992    
  • Master of Science (M.Sc.) in Mechanical Engineering, 1988

Áreas de Investigação

  • Application of plasticity theory to engineering structural design
  • Deformation and fracture in metal-forming processes
  • Bifurcation and instability in pre-stressed structure

Publicações

  • Alexandrova, N.N. and Vila Real, P.M.M., Deformation and stress analysis of an anisotropic rotating annular disk, Int. J. for Computational Methods in Engineering Science and Mechanics, (in press).
  • Alexandrova, N.N. and Vila Real, P.M.M., Effect of angular acceleration on the industrial performance of non-elastic rotating disks, Proc. International Conference on Numerical Methods and Computation in Engineering: CMNE  (p.694),  Porto: Portugal, 13-15 June, 2007,  P.1-10.
  • Alexandrova, N.N. and Vila Real, P.M.M., Elastic-plastic stress distributions and limit angular velocities in rotating hyperbolic annular discs, J. Mechanical Engineering Science, 2007, 221, 137-142.
  • Alexandrova, N.N. and Vila Real, P.M.M., Stress distributions in an annular disk possessing stress induced material anisotropy, Materials Science Forum, 2007, 553 - “Diffusion in Solids and Liquids”, 1-6.
  • Alexandrova, N.N. and Vila Real, P.M.M., Numerical difficulties in engineering informatics education, Proc. Informática 2007 – XII Convención y Expo Internacional (p.94),  La Habana: Cuba, 12-16 February , 2007,  P.1-9.
  • Alexandrova, N.N., Alexandrov, S. and Vila Real, P.M.M., Analysis of stress and strain in a rotating disk mounted on a rigid shaft, Int. J. Theoretical and Applied Mechanics, Belgrade 2006, 33, No. 1, 65-90.
  • Alexandrova, N.N. and Vila Real, P.M.M., Effect of plastic anisotropy on stress-strain field in thin rotating disks, Thin Walled Structures, 2006, 44, 897-903.
  • Alexandrova, N.N. and Vila Real, P.M.M., Effect of geometric parameters on the size of plastic zone in rotating disk systems, Proc. 35th International Solid Mechanics Conference (p.113-114), Kraków: Poland, 4-8 September , 2006.
  • Alexandrova, N.N. and Vila Real, P.M.M., Preliminary design approach to annular disks possessing stress induced material anisotropy, Proc. 2th International Conference on Diffusion in Solids and Liquids, (p.1),  Aveiro: Portugal, 26-28 July , 2006.
  • Alexandrova, N.N. and Vila Real, P.M.M., Stress and limit angular velocities in a rotating elastic-plastic annular disk with variable thickness, Proc. 5th International Conference on Mechanics and Materials in Design (p.513-514),  Porto: Portugal, 24-26 July , 2006,  P.1-9.
  • Alexandrova, N.N. and Vila Real, P.M.M., Effect of plastic anisotropy on the size of elastic-plastic boundary in a rotating disk problem, Proc. III European Conference on Computational Mechanics (p.54), Lisbon: Portugal, 5-9 June , 2006, P. 1-8.
  • Alexandrova, N.N. and Vila Real, P.M.M., Singularities in a solution to a rotating orthotropic disk with temperature gradient, Meccanica, 2006, 41, 197-205.
  • Vilotić, D, Plančak, M, Čupković, D, Alexandrov, S. and Alexandrova, N. Free surface fracture in three upsetting tests, Experimental Mechanics, 2006, 46, 115-120.
  • Alexandrova, N. and Vila Real, P.M.M., Approximate rate formulation of non-elastic bifurcation problem for thin-walled structures, Thin Walled Structures, 2005, 43, 665-678.
  • Alexandrova, N.N. and Vila Real, P.M.M., Stress analysis in an anisotropic rotating disk under temperature field, Proc. Congress in Computational Methods in Engineering, Lisbon: Portugal, May 31- June 2, 2004, P. 1-11 (in Portuguese).
  • Alexandrova, N. and Alexandrov, S., Elastic-plastic stress distribution in a plastically anisotropic rotating disk,  ASME:  J. Appl. Mech., 2004, 71, No. 3, P. 427-429.
  • Alexandrova, N. and Vila Real, P.M.M., Buckling localization in a non-elastic rotating disk, PAMM: Proc. Appl. Math. Mech., 2004, 4, P.532-533.
  • Alexandrova, N. and Vila Real, P.M.M. Buckling localization in a non-elastic rotating disk, Proc. Annual Scientific Conference GAMM, Dresden: Germany, March 21-27, 2004, P.195
  • Alexandrova, N., Alexandrov, S. and Vila Real, P.M.M., Displacement field and strain distribution in a rotating annular disk, Mechanics Based Design of Structures and Machines, 2004, 32, No.4, P. 441-457.
  • Alexandrova, N. and Alexandrov, S., Elastic-plastic stress distribution in a rotating annular disk, Mechanics Based Design of Structures and Machines, 2004, 32, No.1, P.1-15.
  • Alexandrova N. Fracture analysis of tube drawing with a mandrel, J. Mater. Processing Techn., 2003, 142, No.3, P.755-761.
  • Alexandrova, N. and Vila Real, P.M.M. Simplified inelastic buckling analysis for plates and shells, Proc. 9th Int. Conf. on Numerical Methods in Continuum Mechanics, Zilina: Slovak Republic, September 9-12, 2003, P. 1-9.
  • Vilotic D., Plancak M., Grbic S., Alexandrov S. and Chikanova, N. An approach to determining the workability diagram based on upsetting tests, Fat.&Fract. Engng Mater. Struct, 2003, 26, No.4, P.305-310.
  • Alexandrova, N. Modeling of the plastic deformation of two-phase polycrystalline materials, Proc. 14th U.S. National Congress of Theoretical and Applied Mechanics, Virginia: USA, June 23-28, 2002, P.581-582.
  • Alexandrova N. and Gracio J. Simplified bifurcation analysis of circular thin plates, Proc. 2nd Canadian Conference on Nonlinear Solid Mechanics, Ed.: E.M. Croitoro, Vancouver:British Columbia, Canada, June 19-23, 2002, v.2, P.637-646.
  • Alexandrova, N. Analytical treatment of tube drawing with a mandrel, J. Mech. Engng. Sci., 2001, 215, No.5, P.581-589.
  • Alexandrov S. and Alexandrova N. Thermal effects on the development of plastic zones in thin axisymmetric plates, J. Strain Analysis, 2001, 36, No.2, P.169-176.
  • Alexandrov S. and Alexandrova N. On the maximum friction law for rigid-plastic, hardening materials, Mecanica, 2000, 35, No.5, P.393-398.
  • Alexandrov S.E. and Chikanova N.N. Elastic-plastic stress-strain state of a plate with a pressed-in inclusion in thermal field, Izvestiya RAN MTT (Mechanics of Solids), 2000, 35, No. 4, P.125-132.
  • Alexandrov S. and Alexandrova N. Experimental evaluation of accuracy of a fracture criterion, Metally, 2000, No. 4, P. 89-91.
  • Alexandrov S. and Alexandrova N. On the maximum friction law in visco-plasticity, J. Mechanics of Time-Dependent Materials, 2000, 4, No.1, P.99-104.
  • Alexandrov S.E. and Alexandrova N.N. Discontinuous velocity fields in a hardening rigid-plastic material, J. Appl. Mech. Techn. Physics, 2000, 41, No.1, P.182-187.
  • Alexandrov S.E., Danilov V.L. and Chikanova N.N. On the stagnation zone in a simulation of axisymmetric pressure metal forming under creep, Izvestiya RAN MTT (Mechanics of Solids), 2000, 35, No. 1, P.127-129.
  • Alexandrova N.N. The methods of analysis of plastic deformation and fracture in metal-forming processes, Brief annotation of Dr. Science thesis, Moscow: Moscow University Press, 1999, 28 p. (In Russian).
  • Alexandrov S., Goldstein R. and Chikanova N. Upper bound limit load solutions for a round welded bar with an internal axisymmetric crack, Fatigue Fract. Engng Mater. Struct., 1999, 22, No.9, P. 775-780.
  • Alexandrov S., Chikanova N. and Kocak M. Analytical yield load solution for overmatched center cracked tension specimen, Engng. Fract. Mech., 1999, 64, No.4, P. 383-399.
  • Alexandrov S.E, Vilotic D., Goldstein R.V. and Chikanova N.N. To determination of the workability diagram, Izvestiya. RAN MTT (Mechanics of Solids), 1999, 34, No.4, P. 118-125.
  • Alexandrov S.E. and Chikanova N. N. Approximate analysis of metal forming in the case of plane strain, Metally, 1999, No.2, P. 59-67.
  • Vilotic D., Chikanova N. and Alexandrov S. Disk upsetting between spherical dies and its application to the determination of forming limit curves, J. Strain Analysis, 1999, 34, No.1, P. 17-22.
  • Chikanova N.N. Analysis of steady axisymmetric metal forming processes, Vestnik MGTU. Ser. Mashinostroeniy, 1999, No.1, P. 26-39 (in Russian).
  • Chikanova N.N. Determination of mean stress in steady axisymmetric metal forming processes, Izvestiy VUZov. Mashinostroeniy, 1998, No.10-12, P. 23-31 (in Russian).
  • Alexandrov S., Danilov V. and Chikanova N. Creep and fracture of sheet metals in bending, Proc. 6th Int. Symp. on Creep and Coupled Problems , Eds: A. Jakowluk, Z. Mroz, Bialystok (Poland): Bialystok Tech. University, 23-25 September 1998, P. 9-18.
  • Alexandrov S.E., Alexandrova N.N., Vilotic D. and Goldstein R. V. To determination of forming limit diagram, Proc. Mathematical School on Contemporary Problems in Mechanics and Applied Mathematics, Voronezh (Russia), 4-8 May 1998, P.13 (in Russian)
  • Chikanova N. The application of Hill’s method to the analysis of forming processes with damage evolution models, J. Technological Plasticity, 1997, 22, No.1-2, P.93-108.
  • Alexandrov S., Goldstein R. and Chikanova N. Limit load solution for tubular T-joint with rectangular cross section, Proc. 5th Int. Conf. on Biaxial/Multiaxial Fatigue & Fracture, 2, Cracow (Poland), 1997, P. 371-388.
  • Alexandrov S., Chikanova N. and Vilotic D. Analysis of compression with barreling of a block between cylindrical dies, Proc. 3rd EUROMECH Solid Mechanics Conference, Stockholm (Sweden), 1997, P. 123.
  • Alexandrov S., Chikanova N. and Vilotic D. Compression of a block between cylindrical dies and its application to the workability diagram, In: Advanced methods in materials processing defects: Proc. 3rd Int. Conf. on Materials Processing Defects, Eds: M.Predeleanu, P.Gilormini, Amsterdam: Elsevier, 1997, P. 247-256.