Hamdy Youssef, Ph.D. Biography Dr. Youssef graduated from Alexandria University- Egypt in 1972, and appointed to join the teaching staff of The Department of Civil Engineering. Due to the large number of undergraduate students, Dr. Youssef had the chance to participate in teaching several civil engineering courses to over 2000 undergraduate students. Simultaneously with the teachning duties, Dr. Youssef carried out research work in Hydraulics and obtained M.Sc. degree in 1975, with specialization in Hydro- Technical Engineering from Alexandria University.  In addition to the academic duties at Alexandria University, Dr. Youssef carried out design work in civil engineering projects at Prof. A. Shukry (F. ASCE) Consultant Office and during his stay at Firma Stampfli and FIDES of Switzerland, where he accumulated experiences in Computer Applications in Civil Engineering Projects.              In July 1975, Dr. Youssef traveled to Canada to join The Department of Civil Engineering of Concordia University- Montreal, and advanced his interests in computer applications (Analog/Hybrid and Digital Simulation techniques.) In 1976, Dr. Youssef joined The University of Calgary and his research interests concentrated in theoretical soil dynamics and experimental research to study the mechanical behaviour and dynamic properties of ice and frozen soils. In 1978 Dr. Youssef granted the Canadian Citizenship in Calgary- Alberta- Canada. Dr. Youssef obtained M.Sc. degree from the University of Calgary in 1979 with specialization in Geotechnical Engineering.                Following the completetion of the research project at the University of Calgary, Dr. Youssef joined The Department of Civil Engineering at The University of Montreal, and conducted experimental research to investigate the intergranular stresses in frozen soils. Dr. Youssef obtained Ph.D. degree [with GPA 4/4] in 1984, from The University of Montreal- Canada. During the stay at The University of Montreal, Dr. Youssef was awarded research grants from the University of Montreal [Ecole Polytechnique- FDP] and The Government of Quebec [FCAC] for excellence in research. The US Army Cold Regions Research and Engineering Laboratory- USA CRREL awarded Dr. Youssef research grants for experimental research concerning the mechanical behaviour of frozen soils. Dr. Youssef’s independent research work resulted in extensive experimental results on Triaxial Compression, Triaxial Stress- Relaxation and Compressibility of Frozen Sands, in addition to the developments of laboratory testing equipment and technique, as well as data reduction and graphics computer programs for analysis of the experimental results. Dr. Youssef joined The Department of Civil Engineering, Ruhr University Bochum- Germany where he modified and implemented the design work for Youssef’s Triaxial Cell with Self- Cooling System [TCWSCS] for testing ice and frozen soils in the normal geotechnical laboratory. Dr. Youssef’s Triaxial Cell with Self Cooling System, for Testing Ice and Frozen Soils [TCWSCS] as well as Dr. Youssef’s Testing Technique for Automatic Measurements of Volume Change of Frozen Soils [AMVC-FS] are published by ASTM- The American Society for Testing and Materials- Geotechnical Testing Journal. The independent research output permitted Dr. Youssef to discover the mechanisms controlling the volume change behaviour of frozen soils during deformations under triaxial stresses, the discovery is published by ASCE- The American Society of Civil Engineers- Journal of Cold Regions Engineering  Dr. Youssef participated in several National and International Conferences- and contributed extensively to the ice and frozen soils mechanics and dynamic scientific publications in International Conferences and Journals. drhamdyyoussef@yahoo.com Montreal GeoHydro Technical Simulation Research Institute Hamdy Youssef, Ph.D., Civil Engineer Geohydro2002@yahoo.com drhamdyyoussef@yahoo.com groundfreezing@yahoo.ca MEMBERSHIPS: ASCE, CSCE, OEQ, ISSMFE, ASTM ASTM Committee D-18 on Soil and Rock ASTM Committee E-31 on Computerized Systems ASTM Committee E-20 on Temperature Measurements ASTM Committee D-4 on Road and Paving Materials Ambassador Club, Palais de Congres de Montréal- Québec- Canada ACADEMIC EXPERIENCE Ph.D. Geotechnical Engineering  [GPA 4/4] University of Montreal- Quebec- Canada Post-Doctor Fellow Ruhr-University, Bochum- Germany 1975-87 Research Associate Concordia University, Montreal- Canada M.Sc. Geotechnical Engineering University of Calgary, Alberta- Canada 1972-1975 M.Sc. B.Sc. Civil Engineering University of Alexandria- Egypt PROFESSIONAL EXPERIENCE 1. US Army Cold Regions Research and Engineering Laboratory- USA CRREL    Hanover, New Hampshire, USA    Presenting Seminar on Dynamic and Static Testing of Ice and Frozen Soils.    Completed CRREL research contracts on Geotechnical Engineering for Cold Regions. 2. Ruhr-University, Bochum, West Germany    Developing of Triaxial Cell with Self-Cooling and Insulating Systems for    Testing Ice and Frozen Soils in the Normal Geotechnical Laboratory [TCWSCS-l]. 3. University of Montreal, Quebec, Canada Developing of Triaxial Cell with Self Cooling System [TCWSCS] and a new testing technique for automatic measurement of volume change of frozen soils [AMVC-FS]. Development of the computer programs FROZENSOIL.l and EFFECTIVE for data reduction, analysis and graphics of frozen soils experimental results. Extensive experimental research on the triaxial behaviour of frozen soils and providing quantitative results of intergranular stresses of frozen sands. Providing first-time results on compressibility and triaxial stress-relaxation of frozen sands. 4. University of Calgary, Alberta, Canada Participation in development of a new apparatus for dynamic and static creep testing of frozen ground utilizing Drenvich's Resonant Column Device, and the computer program RESCOL4 fore data reduction and analysis of the dynamic properties of Polycrystalline Ice. Developing analytical and numerical [Program PILEDYNS] solutions for vertical vibration of piles supporting machine foundation. 5. Concordia University, Montreal, Quebec, Canada Research work on the mechanical behaviour of unfrozen sand. Analog/Digital and Hybrid simulation of wave motions [water-earth dam interaction]. Solving non-linear differential equations utilizing [US Air Force] MIMIC [Digital/ Analog] program. Design and implementation of electrical power system load prediction [Hydro Quebec data] utilizing Analog/ Digital and Hybrid simulation. 6. University of Alexandria, Egypt Three years of full time undergraduate teaching to Civil Engineering students. Experimental and theoretical determination of pressure and velocity distributions in non- symmetrical curved conduits for design of Hydro Electrical Stations. Organizing and participation in teaching of intensive course for applications of computer programming in Civil Engineering. Design of constructions at Professor A. Shukry [F, ASCE] and Firma Stämpfli and FIDES- Switzerland Consulting offices. 7. Participation in National and International Conferences Publications I. COLD REGIONS: 1.    Youssef, H. [1987]. "Cold Regions Engineering a Century of Canadian Research and Development." Proc. The Canadian Society for Civil engineering Centennial Conference, ISBN 921303-06-8, pp. 305-327. The Canadian Engineering Centennial Convention, 18- 22 May 1987. Palais de Congres de Montreal, Quebec, Canada. Theme: Canadian Engineering -The Next Hundred Years. Invited Speakers: The Prime Minister and The Governor General of Canada II. PERMAFROST- ICE and FROZEN SOILS 2.        Youssef, H. [2003].”Dynamic Testing of Polycrystalline Ice”. Proc.  The 17th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC03, Trondheim, Norway, 16- 19 June 2003. 3.        Youssef, H. [2003]. “Static Testing of Polycrystalline Ice”. Proc. The 17th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC03, Trondheim, Norway, 16- 19 June 2003. 4.        Youssef, H. [2003]. “Triaxial Rheology and Shear Behavior of Ground Ice”. Proc. The 17th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC03, Trondheim, Norway, 16- 19 June 2003. 5.        Youssef, H. [2003]. “Permafrost Geotechnical Testing- New Information and Current Research”. Proc. The 8th International Conference on Permafrost, Zurich- Switzerland, 21- 25 July 2003. 6.        Youssef, H. [2003]. “Laboratory Testing and Data Processing of Frozen Soils” Book- Testing Manual, Accepted for Publications, Swets & Zeitlinger/ A.A. Balkema Publishers, Lisse, The Netherlands, 2003. 7.        Youssef, H. [1988]. "Classification and Laboratory Testing of Artificially Frozen Ground." The American Society of Civil Engineers, ASCE Journal of Cold Regions Engineering, Discussion on Paper By: F.H. Sayles, H.W. Baker, F. Gallavers, H.L. Jessberger, S.Kinosita, A. Sadiviskiy, D. Sego and S. Vyalov. Paper No. 21318, Vol. 1, No.1, 1987,ASCE, JCRE, USA. 8.         Youssef, H. [1988]. "Volume Change Behavior of Frozen Sands." The American Society of Civil Engineers, Journal of Cold Regions Engineering - JCRE, Paper No.22484 - Vol. 2, No.2, June 1988, ASCE, USA. 9.    Youssef, H., Hanna A.M. [1988]. "Behavior of Frozen and Unfrozen Sands in Triaxial Testing." Transportation Research Record Journal- Issue 1190- ISBN: 0- 309- 04758- 7, Transportation Research Board- National Research Council, 2101 Constitution Avenue, Washington D.C. 20418, USA. 10.   Youssef, H. [1988] "Octahedral Shear and Normal Stresses in Frozen Soils." Proc. The Fifth International Conference on Permafrost, Trondheim- Norway, 2- 5 August 1988. The Norwegian Institute of Technology, N-7034, NTH, Norway. 11.  Youssef, H. [1988]. "Acoustic Emission and Volume Change Techniques for Determination of Fractures of Frozen Soils." The Fifth International Conference on Permafrost, Trondheim- Norway, 2- 5 August 1988. The Norwegian Institute of Technology, N- 7034, NTH, Norway. 12.   Youssef, H. [1987]. "Correlations Between Creep and Stress- Relaxation of Frozen Soils." Proc. The 9th International Conference on Port and Ocean Engineering Under Arctic Conditions, POAC '87, Fairbanks, Alaska- USA. 13.   Youssef, H. [1987]. "Compressibility of Sand- Ice System." Proc. The 9th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC '87. The University of Alaska-  Fairbanks, 17- 21 August 1987, USA. 14.   Youssef, H. [1986]. "Repeated Load Triaxial Testing of Frozen Soils." Discussion on Paper by: D.M. Cole, G. Durrell, and E. Chamberlain, Geotechnica1 Testing Journal, GTJODJ, Vol. 9, No.4, December 1986, pp. 221-225. ASTM- The American Society for Testing and Materials - USA. 15.   Youssef, H. (1986]. "Mechanical and Dynamic Properties of Polycrystalline Ice." Proc. The International Offshore and Navigation Conference, POLARTECH '86, Helsinki, 27-30 October 1986. Publisher: Technical Research Center of Finland (VTT Symp. 70), pp. 283- 298, ISBN 951-38-2714-3, Sponsor Publ: Penn Well Publishing Company, USA. 16.   Youssef, H. [1986]. "Mechanical and Dynamic Properties and Behavior of Frozen Soils." Proc. The International Offshore and Navigation Conference, POLARTECH '86, October 27- 30,1986, Publisher: Technical Research Center of Finland [VTT Symp. 70], pp. 299-322, ISBN 951-38-2714-3. Helsinki- Finland. 17.    Youssef, H, [1986]. "Determination of Pore Ice Stresses in Frozen Soils." Proc. The International Offshore and Navigation Conference, POLARTECH '86, 27-30 October 1986. Publisher: Technical Research Center of Finland [VTT Symp. 70], pp. 262-282, ISBN 951-38- 2714-3. Helsinki- Finland. 18.  Youssef, H. [1984]. "Indirect Determination of Intergranular Stresses in Frozen Soils." Ph. D. Thesis, The University of Montreal, Quebec, Canada. National Library of Canada, 1- 17947, ISBN:  0-315-122225-0. Ottawa- Canada. 19.  Silvestri, V., Youssef, H., Tan, P. and Favre, M. [1983]. "Triaxial and Stress Relaxation of Frozen Sands." Proc. The 7th International Conference on Port and Ocean Engineering Under Arctic Conditions, POAC '83, 5- 9 Apri1 1983,. Publisher: Technical Research Center of Finland [VTT Symp. 28], pp. 720-732, ISBN:  951-38-1703-2. Helsinki- Finland 20.   Soulie, M., Tinawi, R., Silvestri, V., and Youssef, H. [1983]. "Stress Relaxation of Frozen Sands." Proc. The 7th International Conference on Port and Ocean Engineering Under Arctic Conditions, POAC '83, 5-9 April 1983, Publisher: Technical Research Center of Finland [VTT Symp. 28], pp. 733-745, ISBN 951-38-1703-2.2. Helsinki- Finland. 21.   Youssef, H., Kuhlemeyer, R., and French, R. [1982]. "Development of an Apparatus for Static and Dynamic Creep Testing of Ice and Frozen Soils." Proc. The Fourth Canadian Permafrost Conference, Calgary, Alberta- Canada, 2-6 March 1981, pp. 419-432.  Roger Brown Memorial Volume- H.M. French, Editor.  Publisher: The National Research Council- Canada, DSS NR: 15-16,1982, ISBN:  0660-5141-3 NRCC 20124, Canada. 22.   Youssef, H. [1981]. "Mechanical Properties of Low Density Ice Under Cyclic Axial Loading." Invited Discussion by President of POAC '81, on Lecturer Paper by: T. Vinson. Proc.  The Sixth International Conference on Port and Ocean Engineering under Arctic Conditions, POAC'81. University Laval- Quebec, Publisher: Division des Publications, University Laval, RPDP-82-99, pp. 1475-80, Quebec- Canada. 23.   Youssef, H., and Kuhlemeyer, R. [1981]. "Dynamic and Static Creep Testing of Ice and Frozen Soils." Proc. POAC '81, Publisher: Division des Publications RPDP- 82-99, pp. 727- 737, Universite Laval, Québec- Canada. 24.  Youssef, H. and Kuhlemeyer, R. [1981], "Authors Reply On: Dynamic and Static Creep Testing of Ice and Frozen Soils" on Discussion by: D.V. Reddy of Memorial University of Newfoundland. Proc. POAC '81. Publisher: University Laval, Quebec- Canada. 25.   Youssef, H. Kuhlemeyer, R., and French, R. [1981]. "A Technique for Measuring Creep Deformation of Frozen Specimens." Proc. The Eighth Canadian Congress of Applied Mechanics, CANCAM '81. Publisher: The University of Moncton, New Brunswick- Canada. 26.   Youssef, H. [1979]. "Development of a Testing Apparatus for Static and Dynamic Creep Testing of Ice and Frozen Soils." M.Sc. Thesis, Department of Civil Engineering, The University of Calgary, Alberta- Canada. Publication of The Center for Information and Numerical Data Analysis and Synthesis [CINDAS], Vol. 24, pp. 85, W.H. Shafer, Editor, Purdue University, West Lafayette, Indiana- USA. III. GROUND FREEZING: 27.   Youssef, H. and Hanna, A.M. [1987]. "Ground Freezing Technique for Construction under Difficult Soil Conditions." Proc. International Symposium on Geotechnical Engineering of Soft Soils  (Mexico 1987). Mexican Society for Soil Mechanics- Mexico. 28.   Youssef, H. [1988]. "Triaxial Cell with Self Cooling and Insulating System." Proc. The Fifth International Symposium on Ground Freezing, ISGF '88, 26-28 July 1988. Nottingham- England. Publisher: A.A. Balkema, The Netherlands. 29.   Youssef, H. [1985]. "Development of New Triaxial Cell with Self Cooling System [TCWSCS] for Testing Ice and Frozen Soils". Proc. Fourth International Symposium on Ground Freezing, ISGF’85, 5-7 August 1985. Vol. 2, pp. 247-252. Publisher: Hokkaido University Press, Kita 8, Nishi 8, Sapporo 060, Siti Kinosita and Masami Fukuda, Editors, Japan. IV. UNFROZEN SOILS: 30.  Youssef, H. [1987]. "A New Automatic Volume Change Monitoring Device." Discussion on Paper by: N.S. Rad and G. W. Clough. Geotechnical Testing Journal, GTJODJ, Vol. 10, No.1, March 1987. The American Society for Testing and Materials, ASTM, 1916 Race St., Philadelphia, Pa. 19103- USA. 31.    Hanna, A.M., and Youssef, H. [1987]. "Evaluation of Dilatancy Theory of Granular Materials." Proc. International Symposium on Prediction and Performance in Geotechnical Engineering. The University of Calgary, Alberta- Canada. Publisher: A.A. Balkema, The Netherlands. 32.  Hanna, A.M., Massoud, N., and Youssef, H. [1987]. "Prediction of Plan Strain Angles of Shearing Resistance from Triaxial Test Results." Proc. The International Symposium on prediction and Performance in Geotechnical Engineering. The University of Calgary, Alberta- Canada. Publisher: A.A. Balkema Publishing Company, The Netherlands. 33.   Hanna, A.M., Massoud, N. and Youssef, H. [1987]. "Prediction of Plane Strain Angles of Shearing Resistance from Direct Shear Test Results." Proc. The 11th Canadian Congress of Applied Mechanics, CANCAM '87, The University of Edmonton, Alberta- Canada. V.  SOIL DYNAMICS: 34.  Youssef, H. [1981]. "Pile Response to Vertical Vibration." Proc. of The International Conference on Numerical Methods for Coupled Problems, 7 –11 September 1981, University College of Swansea, U .K. Publisher: Pine Ridge Press Ltd. [Numerical Methods for Coupled Problems, Editors: E. Hinton, P. Betts, and R. W. Lewis, pp. 655-664, ISBN 0-906674-13-1], West Cross Lane 91, Swansea- England. 35.  Youssef, H. [1987]. "Vertical Vibration of Pile Foundation- Computer Program Documentation." Proc. The Eighth National Conference of Soil Mechanics and Foundation Engineering, The Federation of Polish Engineering Association, Polish Committee on Geotechnique, October 1987. The Institute of Geotechnics of Wroclaw Technical University, Warsaw- Poland. 36.   Youssef, H. [1987]. " Analytical Solution for Dynamically Loaded Pile." Proc. The International Conference on Foundations and Tunnels, March 24-26, 1987. The University of London, Goldsmith College, New Cross, London- England. 37. Youssef, H. [1988]. "Dynamically Loaded Pile in over consolidated Clay." Discussion on Paper By: G.L. Muster II, and M. W. O'Neill, Geotechnical Testing Journal, GTJODJ, Vol. 11, No.3, September 1988. The American Society for Testing and Materials- ASTM, 1916 Race St., Philadelphia, Pennsylvania 19103- USA . VI. ANALOG/DIGITAL AND HYBRID COMPUTER SIMULATION: 38.  Youssef, H. [1987]. "Analog/Hybrid and Digital Simulation in Civil Engineering." Proc. The Second International Conference on Advances in Numerical Methods in Engineering Theory and Applications- NUMETA '87, 6-10 July 1987, University College Swansea, Singleton Park, Swansea, U. .K. VII. HYDROTECHNICAL ENGINEERING: 39.  Youssef, H. [1975]. "Pressure and Velocity Distribution in Closed Curved Conduits." M. Sc. Thesis, The Department of Civil Engineering, The University of Alexandria, Egypt. 40.  Youssef, H., and El Ansary, A. [1981]. "Pressure and Velocity Distribution in Closed Curved Conduits." Proc. The Eighth Canadian Congress of Applied Mechanics, CANCAM '81, Universite de Moncton, New Brunswick, Canada. 41.  Youssef, H. [1987]. "Dynamic Pressure Distribution in Closed Curved Conduits."   Proc. The 20th Midwestern Mechanics Conference, Purdue University,  Indiana- USA.