M.Sc., Ph.D. Dimitris Sfyris

Personal informations

Date of birth: 17 October 1980

Place of birth: Katerini Pierias, Greece

Nationality: Greek

Native of Athens

Contact information

e-mail: dsfyris@env.aegean.gr

Current position (01.04.2009-30.09.2011)

Scientific (post-doctoral) researcher in the Institute of Continuum Mechanics

Scientific director: Prof. Dr. -Ing. Ch. Tsakmakis

Teaching

Summer semester 08-09: Continuum Mechanics II

Winter semester 09-10: Continuum Mechanics I (jointly with Prof. Dr. -Ing. Ch. Tsakmakis)

Summer semester 09-10: Tensor calculus

Winter semester 10-11: Plasticity theory

Summer semester 10-11: Continuum Mechanics II

Education

1998-2002 University of Ioannina (UOI), Department of Mathematics (B. Sc.)
2002-2003 National Technical Uinversity of Athens (NTUA), Department of Applied mathematics and Physics, Division of Mechanics (M. Sc.)
16 October 2003 – 15 July 2007 Aristotle University of Thessaloniki (AUTh), Department of Civil Engineering, Institute of Mechanics of Materials (Ph. D.)
Thesis advisors
Prof. N. Charalambakis (AUTh)
Prof. V.K. Kalpakides (UOI)

Military Training

06 November 2007-06 November 2008 Artillery

Previous academic exprerience

01 October 2008-31 March 2009

Technological Educational Institute (TEI) of Kalamata

Department of Telecommunications and Computing

Teaching

  • Mathematical Analysis I
  • Mathematical Analysis II

Participation in research projects

01.08.2005-31.10.2005 and 1.10.2006-31.12.2006

Researcher for the needs of the program entitled: ''Constitutive equations and boundary conditions for the pseudomomentum equation'' under the framework of ''Pythagoras II' (scientific director: Prof. V. K. Kalpakides)'

Teaching assistance

01.11.2003-01.06.2007

Teaching assistant st the Department of Civil Engineering of AUTh for the needs of the lesson ''Strength of Materials'' (Prof. N. Charalambakis)

Journal papers

  • D. Sfyris, N. Charalambakis, V.K. Kalpakides, „Variational arguments and Noethers theorem on the nonlinear continuum theory of dislcoations“ Int. J. Engngn. Sci. 44, 501-512 (2006).
  • D. Sfyris, N. Charalambakis, V.K. Kalpakides, „Continuously dislocated elastic bodies with a neo-hookean like expression for the enrgy subjected to antiplane shear“ J. Elast. 93, 245-262 (2008).
  • D. Sfyris, N. Charalambakis, V.K. Kalpakides, „Derivation of material momentum equation from balance of energy“ ZAMP 60, 575-579 (2009).
  • D. Sfyris, „The strong ellipticity condition under changes of the current and the reference confihuration“ J. Elast. 103, 281-287 (2011).
  • D. Sfyris, „Propagation of aplane wave to a materially uniform but inhomogeneous body“ ZAMP, in press.
  • D. Sfyris, „Comparing the condition of strong ellipticity and the solvability for a purely elastic problem and the corresponding dislocated problem“ Mathematics and Mechanics of Solids, to appear.

Conferences (with publication at the proceedings)

  • D. I. Bardzokas, G.I. Sfyris, D. Sfyris, „Antiplane mixed boundary value problem of electroelastic media, for a piezoelectric medium with defects in the form of holes“. The Fifth national Conference of the Hellenic Society of non-Destructive Testing, Athens, NTUA, November 18-19, 2005, pp. 90-112. (Presentation given by Prof. D.I. Bardzokas.)
  • D. Sfyris, N. Charaöambakis, V.K. Kalpakides, „On the force acting on dislocations within nonlinear elastostatics“. The Second International Conference on non-Smooth\non-Convex Mechanics with applications in Engineering, Thessaloniki, AUTh, July 7-8, 2006, pp. 29-36. (Presentation given by D. Sfyris.)
  • D. Sfyris, N. Charalambakis, V.K. Kalpakides, „Continuously dislocated elastic bodies subjected to antiplane shear“. The 8th HSTAM International Congress on Mechanics, Patras, July 12-14, 2007, pp. 308-316. (Presentation given by D. Sfyris.)
  • D. Sfyris, „On strong ellipticity and solvability of continuously dislocated bodies“. The 9th HSTAM International Congress in Mechanics, Cyprus, July 12-14, 2010, pp. 121-128. (Presentation given by D. Sfyris.)
  • C. Broese, D. Sfyris, Ch. Tsakmakis, „Effect of the choice of plastic intermediate configuration on anisotropic and gradient plasticity“. The 9th International Congress in Mechanics, Cyprus, July 12-14, 2010, pp. 145-152. (Presentation given by Dr. C. Broese).

Conferences (without publications at the proceedings)

  • V.K. Kalpakides, D. Sfyris, N. Charalambakis, „Some variational arguments on the nonlinear continuum theory of dislocations“. The First International Conference on Computational Mechanics, Belgrade, November 15-17, 2004. (Presentation given by Prof. V.K. Kalpakides.)
  • D. Sfyris, N. Charalambakis, V.K. Kalpakides, „On the force acting on dislocations within nonlinear elastostatics“. the 11th Greek Conference on Analysis, Thessaloniki, AUTh, may 23-24, 2006. (Presentation given by D. Sfyris.)
  • D. Sfyris, „An approach to the theory of continuously dislocated bodies by means of configurational mechanics“. The First International Conference on Material Modelling, Dortmund, Germany, September 15-17, 2009.

Talks-Seminars

02.06.2009 D. Sfyris, „Continuously dislocated elastic bodies subjected to antiplane shear“. At the opoen seminar held at the Department of Mathematics, Technical University of Darmstadt (coordinator: Prof. Dr. H.-D. Alber).
11.11.2009 D. Sfyris, „Remarks concerning ellipticity for finite elastic deformations of materially uniform but inhomogeneous bodies“. At the open seminar held at the Department of Mathematics, Technical University of Darmstadt (coordinator: prof. Dr. H. -D. Alber).