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Svetoslav Nikolov



Position: Associate professor

Department:Solid Mechanics

Room №: 406

Phone: (02) 979 6466



Scientific degrees, institution, year:



Mechanical Engineer, Technical University of   Sofia, 1987

Dipl. Engineer (major Mechanics), Catholic university of Louvain, Belgium, 1994

MS in applied sciences, Catholic university of Louvain, Belgium, 1995

PhD in applied sciences, Catholic university of Louvain, Belgium, 2001


Fields of Research:


Multiscale modeling, homogenization of heterogeneous materials, structure/property relations, polymers, composites, biomaterials, constitutive equations for elasto-viscoplastic materials, size effects, soft robotics


Extended Information



Recent Publications:

  1. Nikolov, S., V. Kotev, K. Kostadinov, F. Wang, C. Liang, Y. Tian. A. Model-based design optimization of soft fiber-reinforced bending actuators. In: Proceedings of the 6th IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO 2016), Chongqing, China,2017, pp. 136-140.
  2. Fabritius, H.-O., A. Ziegler, M. Friák, S. Nikolov, J. Huber, B.H.M. Seidl, S. Ruangchai, F.I. Alagboso, S. Karsten, J. Lu, A.M. Janus, M. Petrov, L.-F. Zhu, P. Hemzalová, S. Hild, D. Raabe, J. Neugebauer. Functional adaptation of crustacean exoskeletal elements through structural and compositional diversity: A combined experimental and theoretical study. Bioinspiration and Biomimetics11 (5), 2016, Article # 055006.
  3. Nikolov S., H. Fabritius, M. Friák, D. Raabe. Integrated multiscale modeling approach for hierarchical biological nanocomposites applied to lobster cuticle. Bulgarian Chemical communications47, 2015, 424-433.
  4. Friák, M., L.-F. Zhu, L. Lymperakis, H. Titrian, U. Aydin, A.M. Janus, H.-O. Fabritius, A. Ziegler, S. Nikolov, P. Hemzalová, D. Raabe, J. Neugebauer. Quantum-mechanical study of single-crystalline and polycrystalline elastic properties of Mg-substituted calcite crystals. Key Engineering Materials, 592-593, 2014, 335-341.
  5. Lhadi, S., S. Ahzi, Y. Rémond, S. Nikolov, H. Fabritius. Effects of homogenization technique and introduction of interfaces in a multiscale approach to predict the elastic properties of arthropod cuticle. Journal of the Mechanical Behavior of Biomedical Materials23, 2013, 103-116.
  6. Zhu, L.F., M. Friák, L. Lymperakis, H. Titrian, U. Aydin, A.M. Janus, H.O. Fabritius, A. Ziegler, S. Nikolov, P. Hemzalová, D. Raabe, J. Neugebauer. Ab initio study of single-crystalline and polycrystalline elastic properties of Mg-substituted calcite crystals. Journal of the Mechanical Behavior of Biomedical Materials20, 2013, 296-304.

Selected publications:

  1. Nikolov, S., H. Fabritius, M. Petrov, M. Friák, L. Lymperakis, C. Sachs, D. Raabe, J. Neugebauer. Robustness and optimal use of design principles of arthropod exoskeletons studied by ab initio-based multiscale simulations. Journal of the Mechanical Behavior of Biomedical Materials4 (2), 2011, 129-145.
  2. Nikolov, S., Petrov, M., Lymperakis, L., Friák, M., Sachs, C., Fabritius, H. O., Raabe, D., Neugebauer, J. Revealing the Design Principles of High-Performance Biological Composites Using Ab initio and Multiscale Simulations: The Example of Lobster. Advanced Materials, 22 (4), 2010, 519-526.
  3. Elstnerová, P., M. Friák, H.-O. Fabritius, L. Lymperakis, T. Hickel, M. Petrov, S. Nikolov, D. Raabe, A. Ziegler, S. Hild, J. Neugebauer. Ab initio study of thermodynamic, structural, and elastic properties of Mg-substituted crystalline calcite. Acta Biomaterialia6 (12), 2010, 4506-4512.
  4. Nikolov S., Raabe, D. Hierarchical modeling of the elastic properties of bone at submicron scales: The role of extrafibrillar mineralization. Biophysical Journal94 (11), 2008, 4220-4232.
  5. Tatiraju R. V. S., Han, C.-S., Nikolov, S. Size dependent hardness of polyamide/imide. Open Mechanics Journal, 1, 2008, 89-92.
  6. Nikolov S., Han, C.-S., Raabe, D. On the origin of size effects in small-strain elasticity of solid polymers. International Journal of Solids and Structures44 (5), 2007, 1582-1592.
  7. Han, C.-S., Nikolov, S. Indentation size effects in polymers and related rotation gradients. Journal of Materials Research22 (6), 2007, 1662-1672.
  8. Nikolov S., Lebensohn, R. A., Raabe, D. Self-consistent modeling of large plastic deformation, texture and morphology evolution in semi-crystalline polymers. Journal of the Mechanics and Physics of Solids54 (7), 2006, 1350-1375.
  9. Nikolov S., Raabe, D. Yielding of polyethylene through propagation of chain twist defects: Temperature, stem length and strain-rate dependence. Polymer47 (5), 2006, 1696–1703.
  10. Nikolov, S. Modelling and simulation of particle breakage in impact crushers. International Journal of Mineral Processing74 (SI), 2004, S219–S225.
  11. Nikolov, S., I. Doghri, O. Pierard, L. Zealouk, A. Goldberg. Multi-scale constitutive modeling of the small deformations of semi-crystalline polymers. Journal of the Mechanics and Physics of Solids, 50 (11), 2002, 2275-2302.
  12. Nikolov, S. A performance model for impact crushers. Minerals Engineering15 (10), 2002, 715-721.
  13. Nikolov, S., I. Doghri. A micro/macro constitutive model for the small-deformation behavior of polyethylene. Polymer41 (5), 2000, 1883-1891.


Book chapters:

  1. Friák, M., H.-O. Fabritius, S. Nikolov, M. Petrov, L. Lymperakis, C. Sachs, P. Elstnerová, J. Neugebauer, D. Raabe. Multi-scale Modelling of a Biological Material: The Arthropod Exoskeleton. In: Materials Design Inspired by Nature: Function through Inner Architecture, (Eds. Fratzl, P., Dunlop, J. W. C., Weinkamer, R.), pp. 197-218, The Royal Society of Chemistry, 2013.
  2. Nikolov, S., Fabritius, H., Friák, M., Raabe, D. Hierarchical modeling of biological nanocomposites, In: Mechanics of Nanomaterials and Nanotechnology, Series in Applied Mathematics and Mechanics, 3, (Eds. Kаvardzhikov, V., Parashkevova, L., Baltov, A.), pp. 199-224, Institute of Mechanics – BAS, Sofia, 2012.
  3. Fabritius, H., C. Sachs, D. Raabe, S. Nikolov, M. Friák, J. Neugebauer. Chitin in the exoskeletons of Arthropoda: From ancient design to novel materials science. In: Chitin: Formation and Diagenesis, (Ed. Gupta, N.S.), pp. 35-60. Springer, 2011.


Recent Projects:

  • Biomedical Robotics and Applications (BioRA), Marie Curie Actions-IRSES, 2015-2017.
  • SPP1420: Crustacean skeletal elements: variations in the constructional morphology at different hierarchical levels, DFG Priority program, 2009-2013,




  • Best paper award, IEEE 3M-NANO 2016 conference, Chongqing, China
  • Best poster award, Euro BioMat 2013 conference, Weimar, Germany



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Modified date:01-09-2017