top of page

RESEARCH AND TECHNICAL REPORTS

  1. Tsouvalis, N.G., “Expert’s Report about Vessel S/B ITAMA BLUE”, Technical Report to GROUPAMA FOINIX Insurance Company, Report No STL-386-F-18, June 2018.

  2. Tsouvalis, N.G. and Markoulis, A.G., “Burning Tests Results of Specimens from M/Y XPLORATION (ex-ATHALA II)”, Technical Report to Dan Marine Europe, Report No STL-385-F-17, December 2017.

  3. Tsouvalis, N.G. and Bilalis, E.P., “Evaluation of Distance Variations of Bays and Air Draft in Large Container Vessels”, Technical Report to KONECRANES Finland Corporation, Report No STL-384-F-17, November 2017.

  4. Bilalis, E., Tsouvalis, N. and Bharadwaj, U., “Selected scenarios and the rationale for such selection”, Technical report within the framework of SHIPLYS project (D2.1), March 2017.

  5. Papadakis, A. and Tsouvalis, N.G., “ Experimental Determination of Composite Materials Mechanical Properties in Deep Water Environment and Behaviour of Composite Materials Pressure Vessels under Hydrostatic Pressure”, Technical report within the framework of AGE-CO-DEEP FIXO3 project, October 2016 (in Greek).

  6. Volonakis, S. and Tsouvalis, N.G., “Guidelines for the Structural Design of Composite Pressure Vessels”, Technical report within the framework of DEEP-CO-HOUS project, October 2015 (in Greek).

  7. Papadakis, A. and Tsouvalis, N.G., “Comparison of Experimental and Numerical Results”, Technical report within the framework of DEEP-CO-HOUS project, October 2015 (in Greek).

  8. Papadakis, A. and Tsouvalis, N.G., “Results of the Experimental Tests”, Technical report within the framework of DEEP-CO-HOUS project, October 2015.

  9. M. Balunović, A. Milat, D. Burlović, D. Frank, N.G. Tsouvalis, E. Kotsidis, J. Przydatek, G. Risso, E. Buennagel, “Guidelines for the Integration of HSLA Steel and Composite Components On-board Ships”, Technical report within the framework of MOSAIC project, September 2015.

  10. Chionopoulos, S., Sarafoglou, C., Volonakis, S. and Tsouvalis, N.G., “Non-destructive Evaluation of Composite Pressure Vessels”, Technical report within the framework of DEEP-CO-HOUS project, June 2015 (in Greek).

  11. Volonakis, S., Papadakis, A. and Tsouvalis, N.G., “Structural Design”, Technical report within the framework of DEEP-CO-HOUS project, June 2015 (in Greek).

  12. Papadakis, A. and Tsouvalis, N.G., “Design of Large-scale Experimental Tests”, Technical report within the framework of DEEP-CO-HOUS project, March 2015 (in Greek).

  13. Kotsidis, E.A., Tsouvalis, N.G., “Patch Design for the Balcony Opening Large-scale Sub-assembly Testing”, Technical report within the framework of MOSAIC project, March 2015.

  14. D. Burlovic, A. Milat, T. Tomac, M. Balunovic, G. Risso, J. Kouloukouras, N. Tsouvalis, P. Yarza, N. Kharghani, C.G. Soares, “On-Board Integration and Design of Composite Components”, Technical report within the framework of MOSAIC project, January 2015.

  15. Sarafoglou, C.I., Tsouvalis, N.G., “NDE Report for calibration samples and type A joint specimens”, Technical report within the framework of MOSAIC project, Report No STL-362-F-14, December 2014.

  16. Kotsidis, E.A., Tsouvalis, N.G., “Composite-to-steel joints tests results”, Technical report within the framework of MOSAIC project, Report No STL-361-F-14, December 2014.

  17. Papadakis, A. and Tsouvalis, N.G., “Composite Materials Characterization”, Technical report within the framework of DEEP-CO-HOUS project, November 2014 (in Greek).

  18. Kotsidis, E.A., Kouloukouras, I.G. and Tsouvalis, N.G., “Design and numerical analyses of composite-to-steel joints”, Technical report within the framework of MOSAIC project, Report No STL-357-F-14, April 2014.

  19. Tsouvalis, N., Markoulis, A., “Cyclic Movement and Measuring the Minimum and Maximum joint Widths of joint covers with trade names: 6R-WTS 150, 6R-WTS-C/250, W.ELM-AL 150, 2W.IF-AL 150, W.ELM-AL/CB 100”, Technical Report to ACP Hellas, Report No STL-355-F-14, January 2014.

  20. Kotsidis, E.A., Kouloukouras, I.G. and Tsouvalis, N.G., “Composite Materials Manufacturing and Characterization”, Technical report within the framework of MOSAIC project, November 2013.

  21. Frydas, J., Kotsidis, E., Karatzas, V. and Tsouvalis, N., “A Parametric Numerical Study of the Fatigue Behavior of Cracked Steel Plates Repaired with Composite Patches”, Technical Report NTUA-TR-WP4-2-v0 within the framework of Research Project Co-Patch, Report No. STL-347-F-13, March 2013.

  22. Kotsidis, E., Karatzas, V. and Tsouvalis, N., “Manufacturing and long term tests of plate specimens”, Technical Report NTUA-TR-WP3-7-v0 within the framework of Research Project Co-Patch, Report No. STL-346-F-13, January 2013.

  23. Kotsidis, E., Karatzas, V. and Tsouvalis, N., “Manufacturing and short-term tests results of plate specimens”, Technical Report NTUA-TR-WP3-6-v0 within the framework of Research Project Co-Patch, Report No. STL-345-F-13, January 2013.

  24. Tsouvalis, N. and Katsaounis, G., «Investigation of Performance of a Gantry Crane Main Beam Bolted Joint », Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-329-F-12, October 2012.

  25. Kotsidis, E., Karatzas, V. and Tsouvalis, N., “Failure criteria implementation on mid-scale short term specimens”, Technical Report NTUA-TR-WP4-1-v0 within the framework of Research Project Co-Patch, Report No. STL-344-F-13, July 2012.

  26. Volonakis, S. and Tsouvalis, N., “Composite Material Characterization Test Results from Curved Filament Wound Specimens”, Technical Report Π2.2 within the framework of Research Project Compressed Liquid Tank Manufactured by Composite Materials, Report No. STL-343-F-13, July 2012 (in Greek).

  27. S. Paboeuf, V. Karatzas, N. Tsouvalis, M. Codda, G. Risso, J. Harald Grave and D. Polic,  “Report on the comparison of the numerical and experimental results for the bond strength tests”, Technical Report CETENA-TR-WP4-3-v0 within the framework of Research Project Co-Patch, Report No. STL-342-F-13, June 2012.

  28. Karatzas, V. and Tsouvalis, N., “Bond Strength Tests”, Technical Report NTUA-TR-WP3-4-v2 within the framework of Research Project Co-Patch, Report No. STL-341-F-13, May 2012.

  29. Tiriakidis, V., Chatzidouros, E., Volonakis, S. and Tsouvalis, N., “Applications and Technical Characteristics of Pressure Vessels”, Technical Report Π1.1 within the framework of Research Project Compressed Liquid Tank Manufactured by Composite Materials, Report No. STL-340-F-13, March 2012 (in Greek).

  30. Tsouvalis, N., «Experimental Measurements on Specimens Taken from the Hull of M/Y NADARA 43», Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-323-F-12, February 2012.

  31. Volonakis, S., Epitropakis, I., Tsouvalis, N. and Papazoglou, V., “Comparison of Experimental and Numerical Results of the Behaviour of Carbon/Epoxy Cylinders in Compression”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-321-F-12, November 2011 (in Greek).

  32. Volonakis, S., Epitropakis, I., Tsouvalis, N. and Papazoglou, V., “Experimental Investigation of Carbon/epoxy Composite Cylinders”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-320-F-12, November 2011 (in Greek).

  33. Volonakis, S., Epitropakis, I., Tsouvalis, N. and Papazoglou, V., “Experimental Characterization of a Carbon/Epoxy and a Glass/Epoxy Composite Material – Comparative Results”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-319-F-12, November 2011 (in Greek).

  34. N.G. Tsouvalis, G.M. Katsaounis and F. Salamat-Zadeh, “Proven evidence of contact with relevant stakeholder groups using a variety of media– Intermediate issue”, Technical Report NTUA-OD-WP7-1-v1 within the framework of Research Project Co-Patch, Report No. STL-339-F-13, June 2011.

  35. Dimou, D. and Tsouvalis, N., “H. KANTER: Analysis of On-board Measurements Data”, Technical Report MOSES-NTUA-WP5-1 within the framework of Research Project MOSES, Report No. STL-338-F-13, March 2011.

  36. Karatzas, V. and Tsouvalis, N., “Composite Materials Characterization Tests”, Technical Report NTUA-TR-WP3-3-v1 within the framework of Research Project Co-Patch, Report No. STL-337-F-13, February 2011.

  37. Tsouvalis, N. and Karatzas, V., “Bond Strength Tests:  Specimens Geometry and Fabrication Guidelines”, Technical Report NTUA-TR-WP3-2-v1 within the framework of Research Project Co-Patch, Report No. STL-336-F-13, October 2010.

  38. Dimou, D. and Tsouvalis, N., “H. KANTER: Algorithms for the Software On-board”, Technical Report MOSES-NTUA-WP3-2 within the framework of Research Project MOSES, Report No. STL-335-F-13, August 2010.

  39. Tsouvalis, N. and Markoulis, A., “Tensile and Flexural Mechanical Properties of Polyethylene Material ICORENE® 1500”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-302-F-10, June 2010.

  40. Dimou, D. and Tsouvalis, N., “H. KANTER: Preliminary Algorithms for the Software On-board”, Technical Report MOSES-NTUA-WP3-1 within the framework of Research Project MOSES, March 2010.

  41. Tsouvalis, N. and Katsaounis, G., “Co-Patch Project Handbook”, Technical Report NTUA-MG-WP8-1-v1 within the framework of Research Project Co-Patch, March 2010.

  42. Pantelis, D.I., Tsouvalis, N.G. and Karalis, D.G., “Metallographic Investigation of Welded Sample From M/T ELLI”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-296-F-10, January 2010.

  43. Pantelis, D.I., Tsouvalis, N.G. and Karalis, D.G., “Investigation of the Causes of Global Failure of M/T ELLI”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-295-F-10, January 2010.

  44. Misirlis, K., Downes, J., Dow, R.S., Berggreen, C., Delarche, A., Lundsgaard-Larsen, C., Tsouvalis, N., Anyfantis, K. and Margelis, G., “Buckling of Imperfect Composite Plates: Parametric Studies”, Technical Report MAR-D4-3-UNEW-DTU-NTUA-6(1) within the framework of Research Project MARSTRUCT, January 2010.

  45. Margelis, G. and Tsouvalis, N., “Validation Studies of Plate Buckling by Progressive Failure: NTUA Results”, Technical Report MAR-R4-3-NTUA-29(1) within the framework of Research Project MARSTRUCT, January 2010.

  46. Margelis, G., Stamatopoulos, K. and Tsouvalis, N., “Measurement of Residual Stresses in Typical Marine Composite Materials Using the Incremental Hole Drilling Method”, Technical Report MAR-R4-3-NTUA-28(1) within the framework of Research Project MARSTRUCT, January 2010.

  47. Margelis, G., Anyfantis, K. and Tsouvalis, N., “Plate Buckling Progressive Failure Parametric Studies:  NTUA Results”, Technical Report MAR-R4-3-NTUA-27(1) within the framework of Research Project MARSTRUCT, November 2009.

  48. Dimou, D., Samuelides, E. and Tsouvalis, N., “Tug “ERIDAN”: Finite Element Structural Analysis of the Bow Area”, Technical Report MOSES-NTUA-WP2-2 within the framework of Research Project MOSES, July 2009.

  49. Dimou, D. and Tsouvalis, N., “Hull Condition Monitoring Systems: A Comparative Study of Classification Societies Rules”, Technical Report MOSES-NTUA-WP1-1 within the framework of Research Project MOSES, February 2009.

  50. Anyfantis, K. and Tsouvalis, N., “Tensile Tests of Double Strap Adhesive Joints Performed at NTUA:  Experimental Results and Numerical Analyses”, Technical Report MAR-R4-4-NTUA-25(1) within the framework of Research Project MARSTRUCT, January 2009.

  51. Tsouvalis, N., Margelis, G. and Dellis, D., “Residual Stresses in Composite Materials: A Review”, Technical Report MAR-R4-3-NTUA-24(2) within the framework of Research Project MARSTRUCT, January 2009.

  52. Dimou, D. and Tsouvalis, N., “ Strength Analysis of the First Superstructures Deck of the Open Type RO/RO Vessel”, Technical Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-256-F-08, January 2008 (in Greek).

  53. Tsouvalis, N., Kouloukouras, J., Dimou, D. and Mirisiotis, L., “Numerical Modeling of the Static and Dynamic Experimental Tests Performed in Composite Patch Reinforced Steel Plates with Defects”, Technical Report within the framework of Research Project PYTHAGORAS II, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-247-F-07, September 2007.

  54. Tsouvalis, N.G., “Experimental Measurements on Specimens Taken form Hull 192 – MAIORA 35DP at Maiora Shipyards – Massa”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-243-F-07, July 2007.

  55. Mirisiotis, L., Tsouvalis, N. and Tsiourva, T., “Experimental investigation of the Static Tensile Behaviour of Corroded Steel Plates Reinforced with Composite Patches”, Technical Report within the framework of Project PYTHAGORAS II, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-238-F-07, May 2007.

  56. Dimou, D., Tsouvalis, N.G. and Papazoglou, V.J., “Analytical Study of the Hull Free Vibrations of the Ro-Ro Passenger Vessel HALKYON-100”, (in Greek), Technical Report to GSRT within the framework of the Transportation-Shipping Program, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-231-F-06, December 2006.

  57. Katsaounis, G., Dimou, D., Tsouvalis, N.G. and Papazoglou, V.J., “Software Development for the Preliminary Computation of the Steel Weight of Double-Hull Ro-Ro Passenger Vessels on the Basis of Classification Society Rules” (in Greek), Technical Report to GSRT within the framework of the Transportation-Shipping Program, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-230-06, December 2006.

  58. Katsaounis, G., Dimou, D., Tsouvalis, N.G. and Papazoglou, V.J., “Software Development for the Preliminary Computation of the Steel Weight of Monohull Ro-Ro Passenger Vessels on the Basis of Classification Society Rules” (in Greek), Technical Report to GSRT within the framework of the Transportation-Shipping Program, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-229-06, December 2006.

  59. Mirisiotis, L., and Tsouvalis, N.G., “Experimental Investigation of the Fatigue Behaviour of Cracked Steel Plates Reinforced by Composite Patches” (in Greek), Technical Report within the framework of Research Project PYTHAGORAS II, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-228-F-06, December 2006.

  60. Mirisiotis, L., and Tsouvalis, N.G., “Experimental Investigation of the Static Behaviour in Tension of Cracked Steel Plates Reinforced by Composite Patches” (in Greek), Technical Report within the framework of Research Project PYTHAGORAS II, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-227-F-06, December 2006.

  61. Varvarigos, P., Dimou, D., Tsouvalis, N.G. and Papazoglou, V.J., “Study of the Local Strength of the Car Deck of the Ro-Ro Passenger Ship HALKYON-100” (in Greek), Technical Report to GSRT within the framework of the Transportation-Shipping Program, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-217-F-06, September 2006.

  62. Varvarigos, P., Dimou, D., Tsouvalis, N.G. and Papazoglou, V.J., “Study of the Longitudinal Strength of the Ro-Ro Passenger Ship HALKYON-100” (in Greek), Technical Report to GSRT within the framework of the Transportation-Shipping Program, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-216-F-06, September 2006.

  63. Papazoglou, V.J. and Tsouvalis, N.G., “Elefsis Shipyards’ 400T KRUPP Gantry Crane: Periodic Investigation Schedule”, Technical Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-215-F-06, July 2006.

  64. Mirisiotis, L., and Tsouvalis, N.G., “Finite Element Simulation of Steel Ship Plating Reinforced with Composite Patches” (in Greek), Technical Report within the framework of Research Project PYTHAGORAS II, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-214-F-06, April 2006.

  65. Mirisiotis, L., and Tsouvalis, N.G., “Characterization of Composite Material Patches made of Carbon Clothing and Epoxy Resins” (in Greek), Technical Report within the framework of Research Project PYTHAGORAS II, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-213-F-06, March 2006.

  66. Dimou, D. and Tsouvalis, N.G., “Structural Examination of Firearm BOFORS L-70 Cover” (in Greek), Technical Report to B.A. Chatziandreou technical company, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-205-F-06, January 2006.

  67. Tsouvalis N.G and Papazoglou, V.J. “Elefsis Shipyards’ 400T KRUPP Gantry Crane: Structural Tests of November 2005”, Technical Report to “Elefsis Shipyards”, Report No. STL-203-F-05, December 2005.

  68. Tsouvalis N.G and Papazoglou, V.J. “Elefsis Shipyards’ 400T KRUPP Gantry Crane: Main Beam Bottom Flange Strengthening”, Technical Report to “Elefsis Shipyards”, Report No. STL-193-F-05, April 2005.

  69. Tsouvalis, N. and Papazoglou, V.J., “Εlefsis Shipyards’ 400T KRUPP Gantry Crane: Effect of Thickness Reductions at the Cross Beam”, Technical Report to “Εlefsis Shipyards”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-179-F-04, December 2004.

  70. Papazoglou, V.J. and Tsouvalis, N.G., “Autopsy Report for the Boat “Laura Z”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-174-F-04, June 2004.

  71. Papazoglou, B.I. and Tsouvalis, N.G., “MAG/YAG Laser Welding Deformations and Temperatures Experimental Measurements”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-172-F-04.

  72. Tsouvalis, N.G., “Autopsy Report for the Vessel ANEMOS III”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-171-F-04, February 2004.

  73. Dimou, D., Tsouvalis, N.G. and Papazoglou, V.J., “Elefsis Shipyards’ 400T KRUPP Gantry Crane: Effect of Counterweight”, Technical Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-167-F-04, February 2004.

  74. Papazoglou, V.J., Tsouvalis, N.G. and Dimou, D., “Cross Beam of the Elefsis Shipyards’ 400T KRUPP Gantry Crane: Modifications at Points of Misalignments of Top Plating Longitudinal Stiffeners”, Technical Report to Elefsis Shipyards S.A., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-163-F-03, December 2003.

  75. Papazoglou, V.J., Tsouvalis, N.G. and Venetsanos, D., “Cross-Beam of the Elefsis Shipyards’ 400T KRUPP Gantry Crane: Reinforcement of the Cable Hole and Effect of Side Plating Cavities”, Technical Report to Elefsis Shipyards S.A., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-162-F-03, February 2004.

  76. Papazoglou, V.J., Tsouvalis, N.G. and Dimou, D.N., “Strength Study of the Long Travel Rails Buffers of the Elefsis Shipyards 400T KRUPP Gantry Crane”, Technical Report to Elefsis Shipyards S.A., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-155-F-03, November 2003.

  77. Papazoglou, V.J. and Tsouvalis, N.G., “Investigation of the reported Failure Scenarios that led to the Sinking of DEMETRA BEAUTY”, Technical Report to the Law Office of Gr. J. Timagenis, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-149-F-03, September 2003.

  78. Papazoglou, V.J. and Tsouvalis, N.G., “Explanatory Annotation of selected Excerpts from the Video Taping of the Sunken Ship DEMETRA BEAUTY”, Technical Report to the Law Office of Gr. J. Timagenis, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-148-F-03, September 2003.

  79. Dimou, D.N., Tsouvalis, N.G. and Papazoglou, V.J., “Parametric Loading Study of the Elefsis Shipyards’ 400T KRUPP Gantry Crane”, Technical Report to Elefsis Shipyards S.A., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-147-F-03, May 2003.

  80. Tsouvalis, N.G.,   “Base Spring Flexure Tests of the VHF Center-Fed Antenna ANT 213”, Technical Report to INTRAKOM S.A., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-145-F-03, May 2003.

  81. Tsouvalis, N.G. and Markoulis A., “Results of Tension Tests for Resin CR105 TA”, Technical Report, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-141-F-03, March 2003.

  82. Tsouvalis, N.G. and Papazoglou, V.J., “Strength Study of the Main Trolley Drive Wheel Box of the Elefsis Shipyards’ 400T KRUPP Gantry Crane”, Technical Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-139-F-03, October 2003.

  83. Papazoglou, V.J., Tsouvalis, N.G. and Dimou, D.N., “Strength Study of the cross-Beam of the Elefsis Shipyards’ 400T KRUPP Gantry Crane” Report to Elefsis Shipyard, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-133-F-02, September 2002.

  84. Papazoglou V.J., Tsouvalis, N.G. and Katsaounis, G.M., “Strength Study of the Pier Leg of the Elefsis Shipyards’ 400T KRUPP Gantry Crane”, Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-132-F-02, August 2002.

  85. Papazoglou V.J. and Tsouvalis, N.G., “Study of the Stress Levels after Installation of two Doubler Plates at the Initial Connection Flange Areas of the Main Beam of the Elefsis Shipyards’ 400T KRUPP Gantry Crane”, Report to Elefsis Shipyard, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-131-F-02, August 2002.

  86. Papazoglou, V.J., Dimou, D.N. and Tsouvalis, N.G., “Examination of Discontinuities of the Longitudinal Stiffeners at the Cross Beam bottom Flange of the Elefsis Shipyards’ 400T KRUPP Gantry Crane”,  Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-130-F-02, July 2002.

  87. Papazoglou, V.J. and Tsouvalis, N.G., “Examination of Discontinuity at the Cross Beam Bottom Flange – Main Beam Junction of the Elefsis Shipyards’ 400T KRUPP Gantry Crane”, Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-129-F-02, January 2002.

  88. Dimou, D.N., Tsiopanas, S., Tsouvalis, N.G., Damala, D. and Grigoropoulos, G., “Pressure and Strain Measurements on the Bottom of High-Speed Planning Craft: Analysis of Full Scale Trials”, National Technical University of Athens, Shipbuilding Technology Laboratory and Ship and Marine Hydrodynamics Laboratories, Report No. STL-120-F-01, November 2001.

  89. Papazoglou, V.J. and Tsouvalis, N.G., “Technical Assessment on the Causes of Overthrow of Elefsis Shipyards 15T Crane”, Technical Report to Elefsis Shipyards, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-119-F-01, November 2001.

  90. Lagoumidou, M., Dimou, D.N. and Tsouvalis, N.G., “Scantlings Requirements for FRP High Speed Small Craft: An Investigation on the Application of the New Hellenic Register of Shipping Rules”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-118-F-01, November 2001.

  91. Dimou, D.N. and Tsouvalis, N.G., “Ship Free Vibrations Study of RO/RO Vessel HALKYON 2000”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-109-F-01, October 2001.

  92. P. Caridis, D. Mourkogiannis and N. Tsouvalis, “Longitudinal Strength Study of RO/RO Vessel HALKYON 2000”, NTUA, School of Naval Architecture and Marine Engineering Report, August 2001.

  93. Tsouvalis, N.G. and Katsaounis, G.M., “Free Hull Girder Vibrations Study of RO/RO Vessel HALKYON 2000”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-107-F-01, August 2001.

  94. Mourkogiannis, D.N. and Tsouvalis, N.G., “Local Strength Calculations of Decks No. 3 and No. 5 of RO/RO Vessel HALKYON 2000”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-104-F-01, April 2001.

  95. Tsouvalis, N.G., “M/T Sea-Βravery II, Strength Calculations of Modified Rudder”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-103-F-01, April 2001.

  96. Tsouvalis, N.G., “Strength Analysis of the Legs of the Jack-Up Platform ANDROS” (in Greek), Technical Report to ATHINA S.A., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-102-F-01, April 2001.

  97. Papazoglou, V.J. and Tsouvalis, N.G., “Investigation through Measurements of the Stress State of the Main Beam Top Flange of the Elefsis Shipyards’ Gantry Crane KRUPP 400T”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-101-I-01, April 2001.

  98. Zaphiratou, A.A., Tsouvalis, N.G., and Papazoglou, V.J., “Numerical Analysis of Demonstrator Composite Cylinder under Hydrostatic Load”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-093-F-00, Athens, December 2000.

  99. Zaphiratou, A.A., Tsouvalis, N.G., and Papazoglou, V.J., “Numerical Analysis of Small Scale Composite Cylinders with Flat End Closures under Hydrostatic Load”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-092-F-00, Athens, December 2000.

  100. Tsouvalis, N.G., and Vasileiou, N.V., “Thickness Calculation of Deck Plating Supporting Wheeled Loads”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-088-F-00, Athens, April 2000.

  101. Zaphiratou, A.A., Tsouvalis, N.G., and Papazoglou, V.J., “Transition Ring Design”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-087-F-00, Athens, March 2000.

  102. Dimou, D., Tsouvalis, N.G., and Papazoglou, V.J., “Development of Scantlings Requirements for FRP High Speed Small Craft”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-086-F-00, Athens, February 2000.

  103. Zaphiratou, A.A., Tsouvalis, N.G., and Papazoglou, V.J., “Performance Comparison of Pressure Housings Made of Different Materials”, Technical Progress Report to the CEC under Contract No. MAS3-CT97-0091, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-084-F-99, December 1999.

  104. Papazoglou, V.J., Tsouvalis, N.G., and Zaphiratou, A.A., “Appendix A of Design Guidelines: Benchmark Studies”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 078-F-99, January 1999.

  105. Zaphiratou, A.A., Tsouvalis, N.G., and Papazoglou, V.J., “Numerical Study of Large Creep Cylinder under Hydrostatic Load : Definition of Thickness”, Technical Progress Report to the CEC under Contract No. MAS3-CT97-0091, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL-076-F-98, November 1998.

  106. Zaphiratou, A.A., Tsouvalis, N.G. and Papazoglou, V.J., “Parametric Study of Small Scale Composite Cylinders Under Hydrostatic Load:  Composite Domes”, Technical Progress Report to the CEC under Contract No. MAS3-CT97-0091, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 075-F-98, November 1998.

  107. Papazoglou, V.J., Tsouvalis, N.G. and Zaphiratou, A.A., “Parametric Study of Small Scale Composite Cylinders Under Hydrostatic Load:  Flat Rigid End-Closures”, Technical Progress Report to the CEC under Contract No. MAS3-CT97-0091, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 073-F-98, Rev. 1, November 1998.

  108. Papazoglou, V.J., Tsouvalis, N.G. and Zaphiratou, A.A., “Sensitivity and Parametric Analyses for the CFRP and GRP Cylinders”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 070-F-97, October 1997.

  109. Papazoglou, V.J., Tsouvalis, N.G. and Zaphiratou, A.A., “Numerical Simulation of IFR and IMP Buckling Tests - Evaluation of Results”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 069-I-97, October 1997.

  110. Papazoglou, V.J., Tsouvalis, N.G. and Prifti, A., “A Study for the Retrofitting of Floating Dock No. 3” (in Greek), Technical Report to the Hellenic Navy, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 068-F-97, July 1997.

  111. Papazoglou, V.J. and Tsouvalis, N.G., “Comparative Study of All Second Round Benchmark Study Results”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 067-F-97, April 1997.

  112. Mavrakos, S.A. and Tsouvalis, N.G., “Study for the Installation of Floating Docks No. 3, 6 and 7 to Crete Naval Base, Phase B” (in Greek), Technical Progress Report to the Hellenic Navy, Report No. FLSTR-014-96, November 1996.

  113. Papazoglou, V.J. and Tsouvalis, N.G., “Material Data Base and Relevant Statistical Analysis Results”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 066-I-96, November 1996.

  114. Papazoglou, V.J., Tsouvalis, N.G. and Dimou, D.N., “Strength Analysis and Specifications for the Structural Modifications of ABEKING Vessels” (in Greek), Technical Report to the Customs Directorate, Ministry of Finance, Greece, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 064-F-96, November 1996.

  115. Papazoglou, V.J. and Tsouvalis, N.G., “NTUA Contribution to the Second Round of Benchmark Studies”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 063-F-97, March 1997.

  116. Papazoglou, V.J., Tsouvalis, N.G. and Dimou, D.N., “Strength Analysis and Specifications for the Structural Modifications of OLYMPIC D44 Vessels” (in Greek), Technical Report to the Customs Directorate, Ministry of Finance, Greece, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 062-F-96, October 1996.

  117. Tsouvalis, N.G., “Strength Analysis of Superstructure and Fore Accommodation Room of LAMBRO-OLYMPIC L65/74 Vessels” (in Greek), Technical Report to the Customs Directorate, Ministry of Finance, Greece, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 060-F-96, September 1996.

  118. Papazoglou, V.J. and Tsouvalis, N.G., “Strength Analysis and Specifications for the Structural Modifications of LAMBRO-OLYMPIC L65/74 Vessels” (in Greek), Technical Report to the Customs Directorate, Ministry of Finance, Greece, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 059-F-96, August 1996.

  119. Tsouvalis, N.G. and Papazoglou, V.J., “Structural Scantlings for High Speed Crafts”, Technical Report to Hellenic Register of Shipping, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 057-F-96, July 1996.

  120. Papazoglou, V.J. and Tsouvalis, N.G., “Proposal for the Second Round of Benchmark Studies”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 056-F-96, July 1996.

  121. Tsouvalis, N.G. and Papazoglou, V.J., “Finite Element Buckling Analysis of the Half-Scale Pressure Hull”, Technical Progress Report to the CEC under Contract No. MAS2-CT92-0028, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 055-F-95, November 1995.

  122. Tsouvalis, N.G., Papazoglou, V.J. and Psiakis, J, “Comparative Study of All Sub-Task 3.1 Benchmark Study Results”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 054-F-96, April 1996.

  123. Tsouvalis, N.G. and Papazoglou, V.J., “NTUA Contribution to the Sub-Task 3.1 Benchmark Study”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 053-F-96, April 1996.

  124. Tsouvalis, N.G., “Finite Element Modelling of a Carbon/Epoxy Cylinder - Buckling Analysis”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 052-F-96, April 1996.

  125. Papazoglou, V.J. and Tsouvalis, N.G., “Proposal for Benchmark Numerical and/or Analytical Studies”, Technical Progress Report to the CEC under Contract No. BE-7550, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 051-F-95, April 1995.

  126. Papazoglou, V.J. and Tsouvalis, N.G., “Finite Element Buckling Analysis of the EXAS Small Scale Cylinder 4236”, Technical Progress Report to the CEC under Contract No. MAS2-CT92-0028, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 050-F-95, September 1995.

  127. Tsouvalis, N.G. and Papazoglou, V.J., “Material Properties for the EXAS and TENAX Epoxy Composite Systems”, Technical Progress Report to the CEC under Contract No. MAS2-CT92-0028, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 047-F-94, November 1994

  128. Papazoglou, V.J., Tsouvalis, N.G. and Dimou, D.M., “Investigation into Upgrading of the Syncrolift Capabilities at Icnut-Tulcea Shipyards S.A. for Salamis Hulls No. 211 and No. 212”, Interim Technical Report to Salamis Shipyards International, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 046-I-94, Rev. 1, December 1994.

  129. Katsaounis, G., Tsouvalis, N.G. and Papazoglou, V.J., “Noise and Vibration Study for the New Hellenic Navy Landing Ships - Report on Vibration Measurements”, Technical Report to Elefsis Shipyards Co., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 042-F-94, March 1994.

  130. Tsouvalis, N.G. and Papazoglou, V.J., “Development and Adaptation of Computer Programs for Strength Calculations” (in Greek),  Final Technical Report for the Research Program Development of a CAD System for Medium-Sized Vessels under Contract No. MOPPIT/19, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 039-F-93, December 1993.

  131. Tsouvalis, N.G., "A Non-Destructive Method for the Identi­fi­ca­tion of Anisotropic Plate Elastic Properties", Institut Francais de Recherche pour l' Exploitation de la Mer (IFREMER), Centre de Brest, Report No. DITI 91.17 GO/MM, Brest, France, December 1991.

  132. Papazoglou, V.J. and Tsouvalis, N.G., “Mechanical Behaviour of Bimodulus Laminated Plates”, National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 010-F-89, Athens, Greece, June 1989.

  133. Tsouvalis, N.G., "Static Elastic Buckling of Laminated Anisotropic Rectangular Plates - A Literature Survey", National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 005-F-88, Athens, Greece, June 1988.

  134. Papazoglou, V.J. and Tsouvalis, N.G., “Analysis of the Static Strength of a G.R.P. Planning Hull” (in Greek), Technical Report to Olympic Marine S.A., National Technical University of Athens, Shipbuilding Technology Laboratory, Report No. STL 003-F-86, Sept. 1986.

bottom of page