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Polyzos Demosthenes

Demosthenes Polyzos Professor
Department of Mechanical Engineering and Aeronautics, University of Patras, Greece

Tel. :2610-969442, 997236   Email:

Last updated: August 2009


PhD in Mechanical & Aeronautical Engineering, Univ. of Patras, Greece
Diploma in Mechanical Engineering, Univ. of Patras, Greece


Previous Employment/Occupation:

2003-today: Professor, Dept. of Mech. & Aeron. Eng., Univ. of Patras, Greece
1998-2003: Associate Professor, , Dept. of Mech. & Aeron. Eng., Univ. of Patras, Greece 
1993-1998: Assistant Professor, Dept. of Mech. & Aeron. Eng., Univ. of Patras, Greece
1988-1993: Lecturer, Dept. of Mech. & Aeron. Eng., Univ. of Patras, Greece
1982-1988: Research and Teaching Assistant, Dept. of Mech. & Aeron. Eng., Univ. of Patras, Greece


Research Activities:

Analytical and numerical methods for solving Direct and Inverse Wave Scattering and Radiation Problems in Acoustics, Electromagnetism, Elasticity , Thermoelasticity and Elasticity with microstructural effects. Study of Wave Propagation Phenomena in Composite and Non-homogeneous Materials, Homogenization Techniques, Non-destructive Methods (Acoustic Emission, Ultrasonics, Acousto-ultrasonics), Mechanical Vibrations, Vibration Isolation. Numerical Analysis with Boundary Elements (Frequency and Time Domain, Two and Three Dimensions, Fluid Structure Interaction, Modal Analysis, Axisymmetric Structures), Dual Reciprocity Boundary Element Method, Meshless Boundary Integral Equation Method and Hybrid Numerical Methods.


Participation in Research Projects:

1990-2009: Participation in SCIENCE, EPET-II, BRITE, PENED and YPER, PRAXE, IST and Bilaterar programmes.



58 refereed journal papers. 18 articles in books, 78 papers in conference proceedings.


Conference Participation/Attendance:

Participation in more than 70 international and national conferences.



  • S.N. Atluri, D.E. Beskos and D. Polyzos, Editors, Proceedings (in CD-ROM) of International Conference on Computational & Experimental Engineering & Sciences, ICCES 03, Corfu, Greece, 2003.
  • N. Bazeos, D.L.Karabalis, D. Polyzos, D.E. Beskos and J.T. Katsikadelis, Editors, Proceedings of 8th HSTAM international Congress on Mechanics, Patras, Greece, 2007
  • Charalambopoulos, D.I. Fotiadis and D. Polyzos, Editors, Advanced Topics in Scattering and Biomedical Engineering, World Sciedific, ISBN-13:9789812814845
  • G. Manolis, D. Polyzos, Editors, Recent Advances in Boundary Element Methods, A volume to honor Professor D.E. Beskos, Springer, 2009
  • S.A. Paipetis and D. Polyzos "Vibrations and waves", 2003 (in Greek)


Selected Publications:

  • S. E. Kattis, D. Polyzos and D. E. Beskos, "Vibration Isolation by a Row of Piles Using a 3-D Frequency Domain BEM", International Journal of Numerical Methods in Engineering, Vol.46, pp. 713-728, 1999
  • S. V. Tsinopoulos, J. P. Agnantiaris  and D. Polyzos, "An Advanced Boundary Element/ Fast Fourier Transform Formulation for Acoustic Radiation and Wave Scattering Problems", Journal of the Acoustical Society of America, Vol.105(3), pp. 1517-1526, 1999
  • S. V. Tsinopoulos and D. Polyzos, "Scattering of He-Ne Laser Light by an Average-sized Red Blood Cell", Applied Optics, Vol.38(25), pp. 5499-5510, 1999.
  • J. T. Verbis, S. E. Kattis, S. V. Tsinopoulos and D. Polyzos, "Wave Dispersion and Attenuation in Fiber Composites", Computational Mechanics, Vol.27, pp. 244-252, 2001
  • E. J. Selloundos and D. Polyzos, "A MLPG(LBIE) method for Solving Frequency Domain Elastic Problems", CMES: Computer Modeling in Engineering & Sciences, 4(6), pp. 619-636, 2003
  • D. Polyzos, K. G. Tsepoura, S. V. Tsinopoulos and D. E. Beskos, "A Boundary Element Method for Solving 2D and 3D Static Gradient Elastic Problems, Part 1: Integral formulation", Computer Methods in Applied Mechanics and Engineering, Vol. 192, pp. 2845-2873, 2003
  • D. Aggelis, S. V. Tsinopoulos, D. Polyzos, "An iterative effective medium approximation (IEMA) for wave dispersion and attenuation predictions in particulate composites suspensions and emulsions", Journal of the Acoustical Society of America, 116(6), pp. 3443-3452, 2004
  • G. Karlis, S. V. Tsinopoulos, D. Polyzos, D. E. Beskos, "Boundary Element Analysis of Mode I and Mixed Mode (I and II) Crack Problem of 2-D Gradient Elasticity", Computer Methods in Applied Mechanics and Engineering, Vol. 196, pp. 5092-5103, 2007
  • M. G. Vavva, V. C. Protopappas, L. N. Gergidis, A. Charalampopoulos, D. I. Fotiadis and D. Polyzos, "Velocity dispersion curves of guided waves propagating in a free gradient elastic plate: application to cortical bone", The Journal of Acoustical Society of America, Vol. 125(5), pp. 3414-3427, 2009
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