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Dora Karagiozova

Position: Professor

Department: Solid Mechanics

Room number: 428

Phone: +359 2 979 6482

E-mail: d.karagiozova@imbm.bas.bg

Scientific degrees, institution, year:

 

 

BSc., MSc. (Applied Mathematics) –honors degree, Donetzk Polytechnic, Ukraine, 1974

Ph.D. (Solid Mechanics) Institute of Applied Mathematics and Mechanics, Ukrainian Academy of Sciences, 1979

 

Fields of Research:

 

Behavior of inelastic materials and structures subjected to blast and impact. Stress wave propagation in inelastic materials. Mechanical properties of cellular materials.  Механични свойства на клетъчни материали.

 

 

Extended Information

 

    Recent Publications:


  1. Karagiozova, D., Alves, M. On the dynamic compression of cellular materials with local structural softening, 2017. https://doi.org/10.1016/j.ijimpeng.2017.04.007
  2. Shiyun Shi, Ling Zhu, Dora Karagiozova, Junying Gao, Experimental and numerical analysis of plates quasi-statically loaded by a rectangular indenter, Marine Struct., 2017,  55,  62-77. https://doi.org/10.1016/j.marstruc.2017.04.007
  3. Karagiozova, D., Langdon, G.S., Nurick, G.N., Niven, T. The influence of a low density foam sandwich core on the response of a partially confined steel cylinder to internal air-blast, Int. J. Impact Eng., 2016, 92, 32-49. http://dx.doi.org/10.1016/j.ijimpeng.2015.09.010
  4. Karagiozova, D., Shu, D.W., Lu, G., Xiang X. On the energy absorption of tube reinforced foam materials under quasi-static and dynamic compression, Int. J. Mech.  Sci., 2016, 105, 102-116.  http://dx.doi.org/10.1016/j.ijmecsci.2015.11.013
  5. Karagiozova D., Alves, M. Stress waves in layered cellular materials—Dynamic compaction under axial impact, Int. J. Mech. Sci., 2015, 101-102, 196-213. https://doi.org/10.1016/j.ijmecsci.2015.07.024
  6. Karagiozova D., Alves, M. Propagation of compaction waves in cellular materials with continuously varying density, Int. J. Solids Struct., 2015, 71, 323-337.  https://doi.org/10.1016/j.ijsolstr.2015.07.005
  7. Karagiozova D., Alves, M. Primary and reflected compaction waves in a foam rod due to an axial impact by a small mass. Latin American J. Solids Struct., 2015, 12, 905-924. http://www.lajss.org/index.php/LAJSS/article/view/1300
  8. Karagiozova, D., Alves, M. Compaction of a double-layered metal foam block impacting a rigid wall, Int. J. Solids Struct., 2014, 51(13), 2424-2438. https://doi.org/10.1016/j.ijsolstr.2014.03.012
  9. Karagiozova, D., Yu, T. X., Lu, G., Xiang, X. Response of a circular metallic hollow beam to an impulsive loading, Thin-Walled Structures, 2014,  80, 80-90. https://doi.org/10.1016/j.tws.2014.02.021
  10. Karagiozova, D., Langdon, G.S., Nurick, G.N. Compaction of metal foam subjected to an impact by a low-density deformable projectile, Int. J. Impact Eng., 2013, 62, 196–209. https://doi.org/10.1016/j.tws.2014.02.021
  11. Langdon, G.S., Karagiozova, D., von Klemperer, C.J., Nurick, G.N., Ozinsky, A., Pickering E.G. The air-blast response of sandwich panels with composite face sheets and polymer foam cores: Experiments and predictions, Int. J. Impact Eng., 2012, 54, 64–82. https://doi.org/10.1016/j.ijimpeng.2012.10.015
  12. Karagiozova, D., Yu, T.X., Lu, G. Transverse blast loading of hollow beams with square cross-sections, Thin-Walled Struct., 2012, 62, 169–178. https://doi.org/10.1016/j.tws.2012.09.004
  13. Alves, M., Karagiozova, D., Micheli, G.B., Calle, M.A.G. Limiting the influence of friction on the split Hopkinson pressure bar tests by using a ring specimen, Int. J. Impact Eng., 2012, 49, 130–141. https://doi.org/10.1016/j.ijimpeng.2012.04.005
  14. Karagiozova, D., Zhang, X.W., Yu, T.X. Static and dynamic snap-through behaviour of an elastic spherical shell, Acta Mechanica Sinica,  2012, 28(3),  695-710. DOI: 10.1007/s10409-012-0065-z
  15. Karagiozova, D., Langdon, G.S., Nurick, G.N. Propagation of compaction waves in metal foams exhibiting strain hardening, Int. J. Solids Struct., 2012, 49(19–20), 2763–2777 . https://doi.org/10.1016/j.ijsolstr.2012.03.012
  16. Karagiozova, D., Langdon, G.S., Nurick, G.N. Blast attenuation in Cymat foam core sacrificial claddings, Int. J. Mech. Sci., 2010, 52(5) 758–776. https://doi.org/10.1016/j.ijmecsci.2010.02.002
  17. Langdon, G.S., Karagiozova, D., Theobald, M.D., Nurick, G.N., Lu, G., Merrett, R., Mayimele, N., Fracture of aluminium foam core sacrificial cladding subjected to air blast loading, Int. J. Impact Eng., 2010, 37(6), 638-651. https://doi.org/10.1016/j.ijimpeng.2009.07.006
  18. Karagiozova, D., Langdon, G.S., Nurick, G.N., Chung Kim Yuen, S. Simulation of the response of fibre-metal laminates to localised blast loading, Int. J. Impact Eng., 2010, 37(6), 766-782. https://doi.org/10.1016/j.ijimpeng.2009.04.001
  19. Karagiozova, D., Nurick, G.N., Langdon, G.S. Behaviour of sandwich panels subject to intense air blasts - Part 2: Numerical simulation, Composite Structures,  2009, 91(4),  442-450. https://doi.org/10.1016/j.compstruct.2009.04.010
  20. Karagiozova, D., Nurick, G.N., Langdon, G.S., Chung Kim Yuen, S., Chi, Y., Bartle S. Response of flexible sandwich-type panels to blast loading, Composites Science and Technology,  2009, 69, 754-763. https://doi.org/10.1016/j.compscitech.2007.12.005
  21. Karagiozova, D., Alves, M., Dynamic elastic-plastic buckling of structural elements: A review, Applied Mechanics Reviews, 2008, 61 (4) pp. 040803-1 – 040803-26 . doi:10.1115/1.2939481
  22. Karagiozova, D., Yu, T.X. Strain localization in circular honeycombs under in-plane biaxial quasi-static and low velocity impact loading, Int. J. Impact Eng.,  2008, 35,  753–770. https://doi.org/10.1016/j.ijimpeng.2007.11.001
  23. Karagiozova, D., Jones, N., On the mechanics of the global bending collapse of circular tubes under dynamic axial load – Dynamic buckling transition. Int. J. Impact Eng.,  2008, 35, 397-424. https://doi.org/10.1016/j.ijimpeng.2007.04.002
  24. Karagiozova, D., Yu, T.X., Gao Z.Y. Relationship for metal hollow sphere materials as a function of their relative density, J. App. Mech.-Transactions of ASME, 2007, 74, 898-907. doi:10.1115/1.2712235
  25. Karagiozova, D., Mines R.A.W. Impact of aircraft tyre fragments on aluminium alloy plates: II – Numerical Simulation using LS-DYNA, Int. J Impact Eng., 2007, 34, 627-646. https://doi.org/10.1016/j.ijimpeng.2006.02.004
  26. Karagiozova, D., Yu , T.X., Gao, Z.Y., Modelling of MHS cellular solid in large strains, Int. J. Mech. Sci., 2006, 48,  1273-1286. https://doi.org/10.1016/j.ijmecsci.2006.06.001
  27. Karagiozova, D., Nurick, G.N., Chung Kim Yuen, S. Energy absorption of aluminium alloy circular and square tubes under an axial explosive load, Thin-Walled Struct., 2005, 43, 956-982. https://doi.org/10.1016/j.tws.2004.11.002
  28. Karagiozova, D., Yu, T.X. Post-collapse characteristics of ductile circular honeycombs under in-plane compression, Int. J. Mech. Sci., 2005, 47, 570-602. https://doi.org/10.1016/j.ijmecsci.2004.11.011
  29. Karagiozova, D., Yu, T.X. Plastic deformation modes of regular hexagonal honeycombs under in-plane biaxial compression, Int. J. Mech. Sci., 2004, 46,  1489–1515. https://doi.org/10.1016/j.ijmecsci.2004.09.010
  30. Karagiozova, D., Alves, M. Transition from progressive buckling to global bending of circular shells under axial impact. Part I – Experimental and numerical observations, Int. J. Solids Struct., 2004, 41, 1565-1580. https://doi.org/10.1016/j.ijsolstr.2003.10.005
  31. Karagiozova, D., Alves, M. Transition from progressive buckling to global bending of circular shells under axial impact. Part II – Theoretical analysis. Int. J. Solids Struct., 2004, 41, 1581-1604. https://doi.org/10.1016/j.ijsolstr.2003.10.006
  32. Karagiozova, D. Dynamic buckling of elastic-plastic square tubes under axial impact. Part I - Stress wave propagation phenomenon, Int. J. Impact Eng., 2004, 30, 143-166. https://doi.org/10.1016/S0734-743X(03)00061-7
  33. Karagiozova, D., Jones, N. Dynamic buckling of elastic-plastic square tubes under axial impact. Part II – Structural response, Int. J. Impact Eng., 2004, 30, 167-192. https://doi.org/10.1016/S0734-743X(03)00062-9
  34. Karagiozova, D., Jones, N. On dynamic buckling phenomena in axially loaded elastic-plastic cylindrical shells, Int. J. Non-linear Mech,  2002, 37, 1223-1238. https://doi.org/10.1016/S0020-7462(01)00146-9
  35. Karagiozova, D., Jones, N. Influence of stress waves on the dynamic progressive and dynamic plastic buckling of cylindrical shells. Int. J. Solids Struct., 2001, 38, 6723-6749. https://doi.org/10.1016/S0020-7683(01)00111-1
  36. Karagiozova, D., Jones, N. Dynamic effects on the energy absorption of axially loaded circular cylindrical shells, Thin-Walled Struct., 2001, 39, 583-610. https://doi.org/10.1016/S0263-8231(01)00015-5
  37. Karagiozova, D., Alves, M., Jones, N. Inertia effects in axisymmetrically deformed cylindrical shells under axial impact, Int. J. Impact Eng., 2000, 24, 1083-1115. https://doi.org/10.1016/S0734-743X(00)00028-2
  38. Karagiozova, D., Jones, N. Dynamic elastic-plastic buckling of cylindrical shells under axial impact, Int. J. Solids Struct., 2000, 37, 2005-2034. https://doi.org/10.1016/S0020-7683(98)00343-6

 

Current projects:

Kinetic energy absorbers – (2015 – 2018) funded by the Brazilian National Council for Scientific and Technological Development (CNPq) in collaboration with the University of Sao Paulo, Brazil.

Awards:

First prize for high scientific achievements during 2002-2004 – awarded by the Union of the Scientists in Bulgaria.

 

Google Scholar: https://scholar.google.bg/citations?user=2QgEhWQAAAAJ&hl=en&oi=ao

Research Gate: https://www.researchgate.net/profile/Dora_Karagiozova

 

 

 

Modified date:19-07-2018