Petropoulos George

Georgios Petropoulos was born in Athens in 1959 and passed away unexpectedly in July 2010. He graduated from the Department of Physics, School of Applied Sciences at the Aristotles University of Thessaloniki, Greece, in 1983. He was awarded a PhD in Mechanical Engineering from the School of Engineering, Department of Mechanical Engineering, at the Aristotles University of Thessaloniki in 1991.

From spring 1984 until winter 1993 he worked as a research assistant (before his PhD) and as a research associate (after his PhD) in the Laboratory for Machine Tools and Machine Dynamics in the Department of Mechanical Engineering at Aristotle University of Thessaloniki. From autumn 1992 until summer 1995 he was a visiting Professor of Tribology in the Technological Educational Institute of Piraeus. He joined the Department of Mechanical Engineering in 1996, initially as Lecturer, and subsequently as Assistant Professor of Dynamics of Manufacturing Processes. He was also the Director of the Laboratory of Manufacturing Processes in the Department.

The research interests and activities of G. Petropoulos included the Theory and Technology of Machining Processes, Tribology, Metrology, Machine Vibrations. He was a member of the following professional bodies: Union of Greek Physicists, EEEE (Hellenic Operational Society, a member of IFORS), Balkan Tribological Association, ASME (American Society of Mechanical Engineers), Greek Metallurgical Society.

G. Petropoulos stood out for his gentleness, integrity, and many interests beyond science.

Professional and Teaching Experience

• 1984-1991: Research Assistant in the Laboratory for Machine Tools and Machine Dynamics, (EEΔΜ), Department of Mechanical Engineering, Aristotles University of Thessaloniki. Assisted in teaching of the following undergraduate courses: Vibrations and Machine Dynamics (1984-1991), Special Tasks of Vibration Analysis (1989-1991), Introduction to Manufacturing Processes-Metrology (1990-1991). Organized laboratory exercises. Supervised diploma project reports of research character.
• 1991-1992: Research Fellow in the same laboratory ( ΕΕΔΜ )
• 1992-1995: Associate Professor of Tribology in the Department of Mechanical Engineering , Technological Education Institute of Piraeus (third level of education).
• 1995-present: Lecturer in Manufacturing Processes, Department of Mechanical and Industrial Engineering, University of Thessaly. Teaches undergraduate level courses in Introduction to Manufacturing, Theory of Manufacturing Processes, Technology of Manufacturing Processes, Vibrations and Machine Dynamics, Introduction to Tribology, and a Postraduate level course in Physical and Economical Models of Manufacturing Processes- Metrology. He has set up and is directing the Laboratory of Manufacturing Processes of the Department.

Publications

PhD Dissertation

• Simulation of the Evolution of self -excited Vibrations in Turning and Milling to determine dynamically stable Cutting Conditions , July 1991 , Thessaloniki (in Greek)

Publications in refereed Journals

• Petropoulos, G., On Methods and Techniques of Elimination / Prevention of the self-excited Vibrations in Metal Machining Systems-A critical Overview and Evaluation, Review of Physics, 9, 25, 1994, pp32-43 (in Greek).
• Petropoulos, G., Karachaliou, H., An experimental Investigation and stochastic Modelling of Cutting Forces in face Turning of Steel with a sintered Carbide Tool, Technika Chronika scientific journal of Technical Chamber of Greece, 13, 3, 1993, pp.45-70 (in Greek).
• Petropoulos, G., Karachaliou, H., A phenomenological experimental -analytical Investigation of Cutting Forces in longitudinal and face Turning Operations : Comparative Study and probabilistic Modelling, Technika Chronika, 13, 4, 1993, pp.7-30 (in Greek).
• Petropoulos, G., Karachaliou, H., Standardization, Measuring-Control and Instrumentation of Roughness of Technological Surfaces: Current Status and Evaluation, Review of Physics, 26, 1994 in press (in Greek).
• Petropoulos, G., Karachaliou H., On the Prediction of Tool Wear in face and longitudinal Turning Operations of Steel with sintered Carbide Tools and Related Comparisons, Journal of the Balcan Tribological Association, Vol. 1, No. 2, 1995, pp.116-126.
• Petropoulos, G., Karachaliou H., Testing the Homogeneity of the Roughness of Surfaces generated by face Turning Operations, Tribology in Industry, 19, 3, 1997, pp.107-112.
• Petropoulos, G., C. Pandazaras and I.Stamos Developing Predictive Models between Selected Texture Parameters of Turned Surfaces , Journal of the Balkan Tribological Association, Vol. 5, No 3, 1999, pp. 156-170.
• Pandazaras, C. and G. Petropoulos: Numerical Modelling of the Functional Behaviour of Finite Sliding Journal Bearings considering Surface Roughness and Dynamic Loading , Journal of the Balkan Tribological Association, Vol. 5, No 3, 1999, pp. 202-210.
• Coutlas, G., C. Pandazaras and G. Petropoulos: Numerical Modelling of the Behaviour of various Type Finite Journal Bearings under Dynamic Loading, Journal Tribology in Industry , Vol. 21, No. 3, 1999, pp. 90-102.
• Pandazaras, C. and G. Petropoulos: On the Relationship between Surface Waviness and Roughness Parameters in Turning /Assessment of hydrodynamically lubricated Journal Bearings Performance, Journal Tribology in Industry, Vol. 21, No. 3, 1999, pp. 121-132.
• Pandazaras, C. and G. Petropoulos : On the Characterization of Piston Ring – Cylinder Tribosystem Microtopography for Modelling Rough Surfaces Contact accepted in the Journal of Industrial Lubrication and Tribology.

Presentations in Refereed Conferences

• Bouzakis, K., Petropoulos, G., A Simulation Model to study the Creation and Development of self -excited Vibrations in Turning, 1st Conference of EEΔΜ on Manufacturing Processes and Machine Dynamics, 12-13 November 1987, Thessaloniki, Greece, proc.pp.175-190 (in Greek).
• Bouzakis, K., Petropoulos, G., A Time Domain Simulation of Chatter in face Turning, 6th International Conference on Computer aided Production Engineering, November 1990, London, Proc.pp.469-474.
• Bouzakis.K., Petropoulos, G., Simulation-Prediction of self-excited Vibrations in Milling, 2nd Conference of ΕΕΔΜ, 8-9 November 1990, Thessaloniki, Proc.pp.263-272 (in Greek).
• Karachaliou, Ch., Pertropoulos, G., A stochastic Approach for basic Machinability Parameters Modelling in Turning Operations, 2nd Balκan Conference on Operational Research, 18-21 October 1993, Thessaloniki, Proc.pp.840-855.
• Karachaliou, Ch., Petropoulos, G., Modelling of statistical Distributions of the Roughness of Surfaces manufactured by Turning. Control of their Homogeneity regarding Roughness as a Criterion, 3rd ΕΕΔΜ Conference, 11-12 November 1994, Thessaloniki, Proc.in press (in Greek).
• Petropoulos, G., Karachaliou, Ch., Modelling and Optimization in Machining Economics : Developing relevant Software, 3rd Balkan Conference on Operational Research, 16-19 October 1995, Thessaloniki, Proc. pp.681-697.
• Ιvkovic, B., G. Petropoulos and B. Nedic : Tribological Properties of Neat Oil and Machining Cost, 7th International Symposium on Tribology INTERTRIBO’99, April 1999, Stara Lesna, Slovakia, Proc. pp. 277-281.
• Petropoulos, G., N. Hassiotis and N. Vaxevanidis: Evaluation and Interdependence of Surface Integrity Characteristics in Face Turning Operations , 3rd International Conference of Tribology BALKANTRIB’99, June 1999, Sinaia, Romania, Proc. pp. 129-137.
• Petropoulos, G. and H. Karahaliou : Investigating into the Effect of small Feed Rate Values on the Roughness Produced by Turning Operations , 3rd International Conference of Tribology BALKANTRIB’99, Sinaia, Romania, Proc. pp. 139-146.
• Vaxevanidis, N., G. Petropoulos, N. Hassiotis anf P. Psylaki : Surface Integrity Changes and Tribological Aspects in Electro-Discharge Machining , 3rd International Conference of Tribology BALKANTRIB’99, Sinaia, Romania, Proc. pp. 147-154.
• Bouzakis, K.-D., I. Tsiafis, P. Aisoua and G. Petropoulos : A Fatigue Test Simulation of Car Radiators using F.E.M. Dynamic Stress Analysis , 3rd National Congress on Computational Mechanics, June 1999, Volos, Greece, Proc. pp. 489-498.
• Vaxevanidis, N., P. Psylaki, G. Petropoulos and N. Hassiotis: Surface Integrity and Microstructural Phenomena of Ck60 Steel due to Electro Discharge Machining, EUROMAT 99 Conference, September 1999, Munich, Germany, Proc. Vol. 7, pp. 240-247.
• Hassiotis, N., G. Petropoulos and N. Vaxevanidis: On the Relationship between Topography and Corrosion Resistance of Machined Surfaces of Steels, EUROMAT 99 Conference, September 1999, Munich, Germany, Proc. Vol.11, pp. 246-253.
• Koumboulis, F., G. Petropoulos and C. Mavridis: Fault Detection in Machining via Torque Estimation, IFAC Symposium on Manufacturing Management and Control, July 2000, Patras, Greece, Proc. pp. 202-206.