Aristotle University of Thessaloniki
Aristotle University of Thessaloniki
I received my B.Sc in Physics in 1994 and my PhD in Engineering in 2004 from Aristotle University of Thessaloniki, Greece. From 2002 – 2004 I worked as a consultant at Hyperco in Thessaloniki, Greece. In 2004 I moved to the School of Mechanical and Materials Engineering of Washington State University as a Research Associate. In 2006 I became Visiting Assistant Professor, and in 2011 a Clinical Assistant Professor at the same School. In 2014 I moved to the Mechanical and Aeronautical Engineering at Clarkson University as an Assistant Professor, a position I hold until today. My current research focuses on the mechanical properties and applications of nanoscale composite nano foams, and on the deformation behavior of High Entropy Alloys.
Research Interest
My research interests span the areas of mechanical properties of nanomaterials and new materials design driven by computer simulations. A common thread in this research is the understanding of the underlining mechanisms at the nanoscale, responsible for the deformation and fracture of metallic materials. For that purpose, computer simulation techniques that span various length scales, ranging from the nanoscale to the microscale are used. These techniques include methods such as Molecular Dynamics, Monte Carlo, Dislocation Dynamics and Finite Elements.
Broadly speaking, my research belongs to the area of Nanomaterials Science (which deals with the understanding of the fundamental mechanisms of deformation and fracture at the nanoscale), an upcoming field which is still in its infancy and whose theoretical foundations are just being laid. This research work not only has theoretical but also practical significance, due to the various potential applications of nanomaterials that include, among others, advanced coatings, smart sensors, solar energy converters, nanophotonics, opto-electronics and catalysts.
Current Research
My current research focuses on the deformation and fracture of nanoscale metallic composites and nanofoams, the mechanical properties of composite nanowires, the effect of irradiation on steels, crack-dislocation interactions, and the deformation and fracture of aluminum alloys. A variety of computational techniques like molecular dynamics and statics, Monte Carlo, dislocation dynamics and finite elements are used to investigate the materials’ behavior across length scales.
NSF-CMMI-MEP 1634640: Collaborative Research: Strengthening Metallic Nanofoams Through Ligament Scale Material Design. Co-PI: C. Cetinkaya, $350,000. Duration: 10/1/2016 - 09/30/2019
Selected Publications
Journals
- P.C. Wo, N. Abdolrahim, Y.F. Zhu, I.N. Mastorakos, D. Bahr and H.M. Zbib, “Precipitation strengthening in nanocomposite Cr/Cu multilayer films”, Phil. Mag., 2014. DOI:10.1080/14786435.2014.904056.
- I.N. Mastorakos and H.M. Zbib, “A multiscale approach to study the effect of copper and nickel concentration in the hardening of Fe alloys”, J. Nuclear Materials, 449, pp. 101-110, 2014. DOI:10.1016/j.jnucmat.2014.03.005.
- N. Abdolrahim, I.N. Mastorakos, S. Shao, D.F. Bahr and H.M. Zbib, “The effect of interfacial imperfections on plastic deformation in Nanoscale Metallic Multilayer Composites”, Comput. Mater. Sci., 86, pp. 118-123, 2014. DOI:10.1016/j.commatsci.2014.01.045.
- S. Shao, H. M. Zbib, D. F. Bahr, and I.N. Mastorakos, “The void nucleation strengths of the Cu-Ni-Nb- based nanoscale metallic multilayers under high strain rate tensile loadings”, Comput. Mater. Sci., 82, pp. 435-441, 2014.
- I.N. Mastorakos, A. Bellou, D.F. Bahr and H.M. Zbib, “Size-dependent strength in nanolaminate metallic systems”, J. Mater. Research 26 (10), pp. 1179-1187, 2011. Invited paper, featured in MRS Material 360 Newsletter.
- W. Xu, X. Sun, H.M. Zbib, I.N. Mastorakos, and M.A. Khaleel, “A mechanistic-based healing model for self-healing glass seals used in solid oxide fuel cells”, J. of Power Sources 218, pp. 445-454, 2012.
- D.P. Field, K.R. Magid, I.N. Mastorakos, J.N. Florando, D.H. Lassila, and J.W. Morris Jr., “Mesoscale strain measurement in deformed crystals: A comparison of X-ray micro-diffraction with electron backscatter diffraction”, Phil. Mag. 90 (11), pp. 1451-1464, 2010.
Conference Proceedings & Presentations
- I.N. Mastorakos, H.M. Zbib, D. Li, M.A. Khaleel, and X.Sun, “Multiscale modeling of irradiation induced hardening in iron alloys”, Mater. Res. Soc. Symp. Proc. 1444, MRSS12-1444-s11-03, 2012. DOI:10.1557/OPL.2012.1424.
- I.N. Mastorakos, N. Le, M. Zeine, H.M. Zbib and M. Khaleel, “Multiscale modeling of irradiation induced hardening in a-Fe, Fe-Cr and Fe-Ni systems”, Mater. Res. Soc. Symp. Proc. 1264, 1264-BB06-05, 2010.
- M. Faisal, I.N. Mastorakos and H.M. Zbib, “Dislocation Dynamics Simulations on Dislocation-Crack Interaction in Nanoscale Multilayer Metallic Composites”, Proceedings of the International Conference of Plasticity, Puerto Vallarta, Mexico, January 2011.
- A. Alankar, I.N. Mastorakos, D.P. Field, “Grain interactions and dislocation density evolution during channel die compression of aluminum”, Proceedings of TMS 2012 Annual Meeting and Exhibition, Seattle,WA, February 2010.
- I.N. Mastorakos, N. Abdolrahim, D.F. Bahr and H.M. Zbib, “The effect of interfacial geometry and chemistry on the strengthening of Nanoscale Multilayer Metallic Composites”, oral presentation, MRS Fall 2012 Meeting, Boston, MA, November 2012.
- I.N. Mastorakos, H.M. Zbib, D. Li, M.A. Khaleel, and X.Sun, “Multiscale modeling of irradiation induced hardening in iron alloys”, oral presentation, MRS Spring 2012 Meeting, San Francisco, CA, April 2012.
- (Invited Seminar) “Deformation and failure mechanisms in nanoscale metallic multilayered composites: A multi scale approach”, Physics colloquium, University of Idaho, Moscow, ID, October 2010.