A.A. Konstantinidis

Assistant Professor

Aristotle University of Thessaloniki


Personal Data
List of Publications


Continuum Mechanics

Strength of Materials
Mechanics of Micro-Nano Structures



Favorite Links


E.C. Aifantis







Laboratory of Mechanics and Materials

School of Engineering

Aristotle University of Thessaloniki

Box 421

GR-54124, Thessaloniki



e-mail: akonsta@civil.auth.gr


Personal Data

Assist. Professor, Division of Mechanics, Polytechnic School, Aristotle University of Thessaloniki, Thessaloniki, Greece



· Introduction to Continuum Mechanics (Book, Slides, Summary)

· Strength of Materials (Slides, Notes)

        Solved Exercises, Unsolved Exercises

· Mechanical Behaviour of Micro–  Nano– Structures

· Nanomechanics



Test 2015-16   Dept. of Electrical Engineering

Test 2015-16   Dept. of Rural Engineering

Test 2015-16   Dept. of Civil Engineering



 PhD, Aristotle University of Thessaloniki, Thessaloniki, Greece (2000)

Topic: Application of the theory of Wavelets and Neural Networks on the Mechanical Behaviour of Materials


Diploma in Electrical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece (1996)



Editorial Boards Memberships

Computer and Experimental Simulations in Engineering and Science (CESES)



 List of publications

PhD Thesis

Konstantinidis, A.A., 2000, Application of the theory of Wavelets and Neural Networks on the Mechanical Behaviour of Materials, PhD Thesis (in Greek).


Journal Papers [Citations]


1. Doulgeri Z., Fahantidis N. And Konstantinidis A., 1998, On the Decoupling of Position and Force Controllers in Constrained Robotic Tasks, J. Robotic Systems 15, 323-340. [4]

2. Moutsopoulos K.N., Konstantinidis A.A., Meladiotis I.D., Tzimopoulos Ch.D. and Aifantis E.C., 2001, Hydraulic Behavior and Contaminant Transport in Multiple Porosity Media, Transport in Porous Media 42, 265-292. [5]

3. Huber N., Konstantinidis A. and Tsakmakis Ch., 2001, Determination of Poisson’s Ratio by Spherical Indentation Using Neural Networks – Part I: Theory, Trans. ASME J. Applied Mechanics 68, 218-222. [11]

4. Frantziskonis G., Konstantinidis A. and Aifantis E.C., 2001, Scale-dependent constitutive relations and the role of scale on nominal properties, Eur. J. Mech. A/Solids 20, 925-936. [4]

5. Konstantinidis A., Frantziskonis G., Carpinteri A. and Aifantis E.C., 2001, Size Effects on Tensile Strength and Fracture Energy in Concrete: Wavelet vs. Fractal Approach, J. Mechan. Behav. Materials 12, 63-75.

6. Konstantinidis A., Ioannidou T., Kehagias A. and Aifantis E.C., 2001, Gradient Constitutive Equations, Size Effects and Artificial Neural Networks, J. Mechan. Behav. Materials 12, 141-157.

7. Konstantinidis A. and Aifantis E.C., 2002, Recent Developments of Gradient Theory. Part II: Plastic Heterogeneity and Wavelets, J. Engng. Mater. Technology 124, 358-364. [10]

8. Tsagrakis I., Konstantinidis A. and Aifantis E.C., 2003, Strain gradient and wavelet interpretation of size effects in yield and strength, Mechanics of Materials 35, 733-745. [6]

9. Tsagrakis I., Konstantinidis A. and Aifantis E.C., 2003, Size Effects in Tension: Gradient Internal Variable and Wavelet Models, J. Mechan. Behav. Materials 14, 41-58. 

10. Tsagrakis I., Efremidis G., Konstantinidis A. and Aifantis E.C., 2005, Deformation vs. Flow and Wavelet-Based Models of Gradient Plasticity: Examples of  Axial Symmetry, Int. J. Plasticity 22, 1456-1485. [2]

11. Fyffe, B., Schwerdtfeger, J., Blackford, J.R., Zaiser, M., Konstantinidis, A. and Aifantis, E.C., 2007, J. Mechan. Behav. Materials 18, 195-215.

12. Aifantis, K.E. and Konstantinidis, A.A., 2009, Yielding and tensile behavior of nanocrystalline copper, Mat. Sci. Engng. A 503, 198-201. [1]

13. Aifantis, K.E,  Konstantinidis, A.A. and Hackney, S.A., 2009, On some aspects of interfaces at the nanoscale, J. Mechan. MEMS 1, 105.

14. Aifantis K.E. and Konstantinidis A.A., 2009, Hall-Petch revisited at the nanoscale, Mater. Sci. Engng. B 163, 139-144.

15. Zaiser M., Moretti P., Konstantinidis A. and Aifantis E.C., 2009, Nucleation of interfacial shear cracks in thin films on disordered substrates, J. Stat. Mech.  P02047 (1-12).

16. Konstantinidis A., Cornetti P., Pugno N. and Aifantis E.C., 2009, Application of gradient theory and quantized fracture mechanics in snow avalanches, J. Mechan. Behav. Materials 19, 39-48.

17. Zaiser M., Moretti P., Konstantinidis A. and Aifantis E.C., 2009, Roughening and pinning of interface cracks in shear delamination of thin films, J. Stat. Mech., P11009.

18. Aifantis, K.E., Konstantinidis, A.A. and Forest, S., 2010, Modeling strain localization bands in metal foams, J. Comput. Theor. Nanosci. 7, 1-7.



Conference Proceedings / Technical Reports


1.  Konstantinidis A., Frantziskonis G. and Aifantis E.C., Wavelets Approach to Adiabatic Shear Banding, in: Proc. of the 5th National Congress on Mechanics 2, pp. 930-936, Ioannina, Greece, 1998.

2.   Konstantinidis A., Pontidou Ch. and Aifantis E.C., Application of gradient theory and wavelets to instabilities of polymeric materials, in: Proc. 2nd Hellenic Scientific Conference of Chemical Engineering, Thessaloniki, May 27-29, 1999.

3.  Konstantinidis A., Hybrid control of robotic arm, Diploma Thesis, Aristotle University of Thessaloniki, Thessaloniki, Greece, 1996.

4.  Konstantinidis, A.A., 2000, Application of the theory of Wavelets and Neural Networks on the Mechanical Behaviour of Materials, PhD Thesis (in Greek), Aristotle University of Thessaloniki, Thessaloniki, Greece.

5.  Tsagrakis I., Konstantinidis A. and Aifantis E.C., Internal Variable and Wavelet Models for Size Effects in Smooth Specimens, Milestone Report for REVISA Program(Contract No FI4S-CT96-0024), December 2000.

6.  Zaiser, M., Fyffe, B., Moretti, P., Konstantinidis, A. and Aifantis, E.C., Pinning and propagation of interface cracks in slope failure: 1D and 2D considerations, in: Proc. of the 2nd International Symposium on Continuous and Discontinuous Modelling of Cohesive Frictional Materials (CDM2004), eds. P.A. Vermeer, W. Ehlers, H.J. Hermann and E. Ramm, A.A. Balkema Publishers, pp. 435-446, 2004. [2]

7.   Aifantis, K.E. and Konstantinidis A., Applications of gradient deformation theory of plasticity to nanopolycrystals, in: Proc. of PLASTICITY ’05, eds. A.S. Khan and A.R. Khoei, Neat Press, pp.469-471, 2005.

8.  Konstantinidis, A., Pugno, N., Cornetti, P. and Aifantis, E.C., Avalanche Mechanics: LEFM vs. Gradient Model, in: Proc. of the 16th European Conference of Fracture (ECF16), CD-ROM, 2006.

9. Konstantinidis, A. and Aifantis, K.E., On the application of gradient plasticity and wavelet analysis to model the plastic deformation of nanocrystalline materials, in: Proc. of 8th HSTAM Int. Congress on Mechanics, Eds. N. Bazeos et al, pp. 637-644 (2007).

10. Zaiser M., Moretti P., Konstantinidis A.A. and Aifantis E.C., Shear failure on disordered substrates: Nucleation and propagation of interfacial shear cracks, in: Proc: 4th Int. Conference on Multiscale Materials Modeling/MMM2008, ed. A. El-Azab, Dept. of Scientific Computing, Florida State University, pp. 126-131, 2008.

11. K.E. Aifantis, A.A. Konstantinidis and M. Zaiser, Damage evolution in foams, in: Proc: 4th Int. Conference on Multiscale Materials Modeling/MMM2008, ed. A. El-Azab, Dept. of Scientific Computing, Florida State University, pp. 253-256, 2008.

12. Konstantinidis A.A. and Aifantis K.E., in: Proc. ENOC 2011, July 2011, Rome, CD ROM.



Citations [Article]  [Last Update: 2009]

Total: 45


Aifantis, E.C., 2003, Update on a class of gradient theories, Mechanics of Materials 35, 259-280. [PhD Thesis]


Ruiz-Leon, J., Sapiens, A.J., Celikovsky, S. and Torres, J.A.M., 2004, Decoupling with stability: Application to the real time control of a water storing plant, Asian J. Control 6, 415-420. [#1]


Shen, Y. and Hueper, P., 2005, A joint space formulation for compliant motion control of robot manipulators, in: Proc. of IEEE Int. Conf. on Mechatronics and Automation (ICMA 2005), pp. 362-369. [#1]


Khayati, K., Bigras, P. and Dessaint, L.-A., 2006, A multistage position/force control for constrained robotic systems with friction: Joint-space decomposition, linearization, and multiobjective observer/controller synthesis using LMI formalism, IEEE Trans. Industr. Electronics 53, 1698-1712. [#1] 


Shen, Y., 2006, Joint-space recipes for manipulator  robots performing compliant motion tasks: Trajectory-optimization, interpolation and control, PhD Thesis, Australian National University, Canberra, Australia. [#1]


Abbo, H., Shavit, U., Markel, D. and Rimmer, A., 2003, A numerical study on the influence of fractured regions on lake/groundwater interaction; the Lake Kinneret (Sea of Galilee) case, J. Hydrology 283, 225-243. [#2]


Pride, S.R. and Berryman, J.G., 2003, Linear dynamics of double-porosity dual-permeability materials. I. Governing equations and acoustic attenuation, Phys. Review E 68, 036603. [#2]


Zhang, J., Roegiers, J.-C. and Bai, M., 2004, Dual-porosity elastoplastic analyses of non-isothermal one-dimensional consolidation, Geotech. and Geological Engng. 22, 589-610. [#2]


Zhang, J. and Roegiers, J.-C., 2005, Double porosity finite element method for borehole modeling, Rock Mechanics and Rock Engineering 38, 217-242. [#2]


Nield, D.A. and Kuznetsov, A.V, 2008, Natural convection about a vertical plate embedded in a bidisperse porous medium, Int. J. Heat and Mass Transfer 51, 1658-1664. [#2]


Gu, Y., Nakamura, T., Prchlik, L., Sampath, S. and Wallace, J., 2003, Micro-indentation and inverse analysis to characterize elastic-plastic graded materials, Mat. Sci. Engng. A – Struct. Mat. Prop. Microstr. Processing 345, 223-233. [#3]


Kogut, L. and  Komvopoulos, K., 2004, Analysis of the spherical indentation cycle for elastic-perfectly plastic solids, J. Mater. Res. 19, 3641-3653. [#3]


Abendroth, M. and Kuna, M., 2004, Determination of ductile material properties by means of the small punch test and neural networks, Adv. Engng. Materials 6, 536-540. [#3]


Mackerle, J., Finite element modelling and simulation of indentation testing: A bibliography (1990-2002), Eng. Comput. 21, 23-52, 2004. [#3]


Abendroth, M. and Kuna, M., 2006, Identification of ductile damage and fracture parameters from the small punch test using neural networks, Engng. Fracture Mechanics 73, 710-725. [#3]


Rauchs, G., 2006, Optimization-based material parameter identification in indentation testing for finite strain elasto-plasticity, ZAMM Zeitschrift fur Angewandte Mathematik und Mechanik 86, 539-562. [#3]


Zhao, J.-C., 2005, Combinatorial approaches as effective tools in the study of phase diagrams and composition–structure–property relationships, Progr. Mat. Sci. 51, 557-631, 2006. [#3]


Zheng, Y.P., Choi, A.P.C., Ling, H.Y., Huang, Y.P., 2009, Simultaneous estimation of Poisson's ratio and Young's modulus using a single indentation: A finite element study, Measur. Sci. Technol. 20, 045706. [#3]


Cortes, D.H., Garcia, J.I. and Garcia, J.J., 2002, Uso de redes neuronales para analizar modelos mecanicos de tejidos biologicos, in: Proc. Of VI Congreso Colombiano de Elementos Finitos y Midelamiento Numerico, Bogota, Colombia, May 2002. [#3]


Abentroth, M., 2004, Identifikation elastoplastischer und schaedigungsmechanischer materialparameter aus dem small punch test, PhD. Thesis, Technishen Universitaet Bergakademie Freiberg, Freiberg, Germany. [#3]


Balakrishnan, A. and Socrate, S., 2008, Material property differentiation in indentation testing using secondary sensors, Experimental Mechanics 48, 549-558. [#3]


Jing, L., 2003, A review of techniques, advances and outstanding issues in numerical modelling for rock mechanics and rock engineering, Int. J. Rock Mech. Mining Sci. 40, 283-353. [#4]


Alava, M.J., Nukala, P.K.V.V. and Zapperi, S., 2006, Statistical models of fracture, Advances in Physics 55, 349-476. [#4]


Kim, G.-Y., Ni, J. and Koç, M., 2007, Modeling of the size effects on the behavior of metals in microscale deformation processes, J. Manufact. Sci. Engng., Trans. ASME 129, 470-476. [#4]


G. Exadaktylos and M. Stavropoulou, A specific upscaling theory of rock mass parameters exhibiting spatial variability: Analytical relations and computational scheme, Int. J. Rock Mechanics & Mining Sciences, in press, 2008. [#4, #8]


Abu Al-Rub, R.K. and Voyiadjis, G.Z., 2004, Analytical and experimental determination of the material intrinsic length scale of strain gradient plasticity theory from micro- and nano-indentation experiments, Int. J. Plasticity 20, 1139-1182. [#7]


Battaile, C.C and Holm, E.A., 2004, Simulating the interactions between microstructure and deformation, in: Proc. ASME Design Engineering Technical Conference, Vol. 3, pp. 661-662. [#7]


Voyiadjis, G.Z. and Abu Al-Rub, R.K., 2005, Gradient plasticity theory with a variable length scale parameter, Int. J. Solids Struct. 42, 3998-4029. [#7]


Abu Al-Rub, R.K. and Voyiadjis, G.Z., 2006, A physically based gradient plasticity theory, Int. J. Plasticity 22, 654-684. [#7]


Battaile, C.C. and Holm, E.A., 2005, in: Proc. of the ASME Design Engineering Technical Conference, vol. 3, pp. 661-662. [#7]


Anathakrishna, G., 2007, Current theoretical approaches to collective behavior of dislocations, Physics Reports 440, 113-259. [#7]


Anathakrishna, G., 2007, Statistical and Dynamical Approaches to Collective Behavior of Dislocations  (Chapter 73 ), Dislocations in Solids 13, pp. 81-223. [#7]


Darowicki, K., Orlikowski, J. and Zieliński, A., 2008, Investigation of changes in the type B PLC effect of Al-Mg-Cu type alloy for various strain rates, Mat. Sci. Engng. A 496, pp. 478-482. [#7]


Abu Al-Rub, R.K. , 2004, Material Length Scales in Gradient-Dependent Plasticity/Damage and Size Effects: Theory and Computation, PhD. Thesis, Louisiana State University, Baton Rouge, USA.  [#7, #8]


Zhao, J., Sheng, D. and Zhou, W., 2005, Shear banding analysis of geomaterials by strain gradient enhanced damage model, Int. J. Solids Struct., to appear. [#7, #8]


Voyiadjis, G.Z., Abu Al-Rub, R.K. and Palazotto, A.N., 2004, Thermodynamic framework for coupling of non-local viscoplasticity and non-local anisotropic viscodamage for dynamic localization problems using gradient theory, Int. J. Plasticity 20, 981-1038. [#8]


Aifantis, K.E. and Ngan, A.H.W., 2007, Modeling dislocation-grain boundary interactions through gradient plasticity and nanoindentation, Mat. Sci. Engng. A459, 251-261. [#8]


Li, M.-L. and Fu, M.-F., Limit analysis of viscoplastic thick-walled cylinder and spherical shell under internal pressure using a strain gradient plasticity theory, Appl. Math. Mech. (English Edition) 29 (12), 1553-1559. [#8]


Bardella, L., 2007, Some remarks on the strain gradient crystal plasticity modelling, with particular reference to the material length scales involved, Int. J. Plasticity 23, 296-322. [#10]


Bardella, L. and Giacomini, A., 2008, Influence of material parameters and crystallography on the size effects describable by means of strain gradient plasticity,
J. Mech. Phys. Solids, In Press. [#10]


Aifantis, E.C., 2009, Deformation and failure of bulk nanograined and ultrafine-grained materials, Mater. Sci. Engng. A 503, 190-197. [#12]


Kronholm, K. and Birkeland, K.W., 2005, Integrating spatial patterns into a snow avalanche cellular automata model, Geophysical Research Letters 32, 1-4. [#16]


Schweizer, J., Kronholm, K.,  Bruce Jamieson, J. and Birkeland, K.W., 2007, Review of spatial variability of snowpack properties and its importance for avalanche formation, Cold Regions Science and Technology 51, 252-273, 2008. [#16]