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School of Naval Architecture and Marine Engineering, National Technical University of Athens, Greece
Summary:
Professor Tsouvalis’ scientific research areas are (among others): mechanical behaviour of composite materials, especially in marine environment, structural design and numerical modelling of marine structures using advanced materials, structural design of composite underwater vehicles, development of cost-effective advanced fabrication methods for building composite materials vessels, steel-to-composite joints, effect of material and geometry imperfections on the strength of composite materials.
Selected Publications (For more see the link, Prof. Nicholas G. Tsouvalis):
V.J. Papazoglou, N.G. Tsouvalis and G.D. Kyriakopoulos, “Buckling of unsymmetric laminates under linearly varying, biaxial in-plane loads, combined with shear”, Composite Structures, Vol. 20, pp 155-163, 1992
Papazouglou VJ, Tsouvalis NG (1995) Large deflection dynamic response of composite laminated plates under in-plane loads. Compos Struct 33:237–252
Papazoglou, V.J. and Tsouvalis, N.G., Finite element buckling analysis of carbon epoxy cylinders, Proceedings of the 1st Hellenic Conference on Composite Materials and Structures, Xanthi, Greece (1997), pp. 508-526.
Papazoglou VJ, Tsouvalis NG, Zaphiratou AA. Parametric study of small scale cylinders under hydrostatic load: flat rigid end closures. MAST III project MAS3-CT97-0091, report n° STL-073-F-98. National Technical University of Athens, 1998.
Tsouvalis, N.G., Zaphiratou, A.A. and Papazoglou, V.J., “Parametric study of composite cylinders under hydrostatic load: Effect of end closures and lay-up”, Proceedings of the 4th International Colloquium on Computation of Shell and Spatial Structures, IASS- IACM 2000, Papadrakakis M., Samartin A. and Onate E., Editors, Chania, Greece (2000).
Tsouvalis, N.G., Zafeiratou, A.A., Papazoglou, V.J., Gabrielides, N.C., Kaklis, P.D.: Numerical modeling of composite laminated cylindrical shells in compression using a novel imperfections modeling method. Compos., Part B Eng. 32, 387–399 (2001)
Patreli, A.S., Tsouvalis, N.G.: A parametric study of the effect of geometric imperfections on the buckling behavior of composite laminated cylinders. In: Proceedings of the HELLAS-COM 2001, Second National Conference on Composite Materials, Patras, Greece (2001)
A.S. Petreli and N.G. Tsouvalis, “A parametric study of the effect of geometric imperfections on the buckling behaviour o composite laminated cylinders”, Advanced Composites Letters, Vol. 11, No. 3, 2002
Tsouvalis, N.G., Zafeiratou, A.A., Papazoglou, V.J., 2003. The effect of geometric imperfections on the buckling behavior of composite laminated cylinders under external hydrostatic pressure. Composites Part B: Engineering 34, 217–226.
Nicholas G. Tsouvalis and Vassilios J. Papazoglou, “Design buckling curves for clamped orthotropic laminated plates”, Advanced Composites Letters, Vol. 13, No. 5, 2004
N.G. Touvalis and M.J. Kollarini, “Experimental investigation of strain concentrations caused by inserts in sandwich beams”, Strain, 2008, doi: 10.1111/j.1475-1305.2007.00369.x
N.G. Tsouvalis, G.S. Garganidis, “Buckling strength parametric study of composite laminated plates with delaminations”, Ships and Offshore Structures, 6, Nos. 1-2, (2011), pp. 93-104
K.N. Anyfantis, N.G. Tsouvalis, Post buckling progressive failure analysis of composite laminated stiffened panels, Appl Compos Mater, 19 (3–4) (2012), pp. 219-236
E.A. Kotsidis, I.G. Kouloukouras, N.G. Tsouvalis, Finite element parametric study of a composite-to-steel-joint, TA (Ed.), Taylor & Francis Group. Maritime Technology and Engineering, Guedes Soares, C & Santos, London (2015), pp. 627-635
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