TPS: Computational mechanics master's program

Name: Sami EL-BORGI

Title: Professor of Civil Engineering and Applied Mechanics, Director of the Applied Mechanics and Systems Research Laboratory, Director of the Applied Mechanics Graduate Program

Address: Tunisia Polytechnic School, Rue El-Khawarizmi, B.P. 743, La Marsa 2078, Tunisia

Telephone: (+216) 98 593 005

Fax: (+216) 71 748 843

Email: sami.elborgi@gnet.tn

Education: Ph.D., Civil Engineering, Cornell University, Ithaca, New York, USA, 1992; Master of Science, Civil Engineering, Northwestern University, Evanston, Illinois, USA, 1987; Bachelor of Science, Civil Engineering, Ohio State University, Columbus, Ohio, USA, 1985.

Research Interests: Fracture and Contact Mechanics of Functionally Graded Materials; Seismic protection of civil engineering structures using modern control techniques; Structural Health Evaluation through Ambient Vibration Testing, Output-only Modal Identification and Finite Element Updating; Dynamic Modeling and Control of Micro-Electromechanical Systems (MEMS).

Recent Funded Research Projects:

P1. Identification of the modal signature of bridges from ambient vibration measurements. Research collaboration with Dr. C. Cremona, Central Laboratory for Bridges and Highways (LCPC), Paris, France. Funding provided by French-Tunisian Governments (CMCU Franco-Tunisien) from 1999 until 2001. Amount: 60 000 French Francs.

P2. Semi-active control of seismically excited linear and hysteretic structures. Research collaboration with Dr. M. Riley and F. Sadek of NIST’s Structures Division (NIST: National Institute of Standards and Technology, Maryland, USA). Funding provided by NIST from 1999 until 2003. Amount: 12 000 US Dollars

P3. Crack problems in functionally graded materials under thermo-mechanical loading. Research collaboration with Professor L. Keer of Northwestern University, USA and Professor F. Erdogan of Lehigh University, USA. Funded by the U.S. National Science Foundation from 2000 until 2003 https://www.fastlane.nsf.gov/servlet/showaward?award=0080462.

P4. Conservation of historical mediterrannean sites by innovative seismic protection techniques (CHIME). Research Collaboration with Professor Casciati of the University of Pavia, Italy) and other researchers from Tunisia, Egypt, Greece and Cyprus. Funding provided by the European Commission from 2000 until 2003 http://dipmec.unipv.it/research/chime/chime.html. Amount: 74 500 Euros.

P5. Wide-range Non-intrusive Devices toward Conservation of Historical Monuments in the Mediterranean Area (WIND-CHIME). Research Collaboration with Professor Casciati of the University of Pavia, Italy and other researchers from Mediterranean countries. Funding provided by the European Commission from 2004 until 2007. Amount: 70 000 Euros.

P6. Vibration confinement in seismically excited linear and hysteretic structures. Research collaboration with Professor A. Nayfeh of Virginia Tech, USA. Funded by the U.S. National Science Foundation from 2002 until 2006 https://www.fastlane.nsf.gov/servlet/showaward?award=0138083. Amount: 30 000 US Dollars.

P7. Master’s Program in Computational Mechanics at Tunisia Polytechnic School and Impacts on the Development of Tunisia. Graduate program developed in collaboration with Professor A. Nayfeh and other professors from Virginia Tech, USA. Funded by the U.S. State Department (Office of Global Educational Programs), Virginia Tech and Tunisia Polytechnic School from 2002 until 2005 http://www.esm.vt.edu/~anayfeh/cmgp-tps/default.html, Amount: 490 423 US Dollars.

P8. Ambient vibration-based modal identification and finite element updating of bridge structures. Principal Investigator. Research collaboration with Tunisian engineers and Professors. Funding provided by the Center for Testing and Construction Techniques (Tunisian Ministry of Infrastructure and Urban Planning) from 2002 until 2004. Amount: 100 000 Tunisian Dinars.

P9. Fracture and Contact Mechanics of Orthotropic Functionally Graded Materials. Research collaboration with Dr. Serkan Dag, Middle East Technical University, Ankara, Turquie. Funding provided by SERST (Secrétariat d’Etat à la Recherche Scientifique et à la Technologie) and TUBITAK (Turkish Scientific and Technological Research Council) from 2004-2007.

P10. US-Tunisia Workshop: Research and Educational Advances in Design and Fabrication of Micro-Electro-Mechanical Systems, December 2006, Tunis, Tunisia. Research collaboration with Professor A. Nayfeh of Virginia Tech, USA. Funded by the U.S. National Science Foundation from 2005 until 2007 http://www.nsf.gov/awardsearch/showAward.do? AwardNumber=0536661.

Scientific Responsibilities:

a) Member of the editorial board in the following international journals (since 2003):

Journal of Vibration and Control;

International Journal of Smart Structures and Systems.

b) Reviewed articles for the following international journals:

Journal of Structural Control and Health Monitoring;

Journal of Vibration and Control;

International Journal of Solids and Structures;

Journal of Mechanics and Materials of Structures;

Journal of Sound and Vibration;

Journal of Nonlinear Dynamics;

Journal of Experimental Techniques;

Journal of Composite Materials;

Canadian Journal of Civil Engineering.

c) Member of the scientific committee for the following international conferences:

Sixth International Symposium on Functionally Graded Materials (Colorado, USA, September 2000)

Third European Conference on Structural Control (Vienna, Austria, July 2004);

First International Operational Modal Analysis Conference (Copenhagen, Denmark, April 2005);

Fourth World Conference on Structural Control (San Diego, California, USA, July 2006);

FGM2006: Multiscale and Functionally Graded Materials Conference (Hawaii, October 2006);

ICAMEM2006: Third International Conference on Advances in Mechanical Engineering and Mechanics (Hammamet, Tunisia, December 2006); Conference Co-Chair.

ICAMEM2008: Fourth International Conference on Advances in Mechanical Engineering and Mechanics (Hammamet, Tunisia, December 2006); Conference Co-Chair.

d) Appointed by the Tunisian Ministry of Higher Education since 1999 in the National Recruitment and Promotion Committee of Assistant and Associate Professors in Civil Engineering.

Recent Publications:

Chapter in books

El-Borgi, S., Associate Editor of the Mechanics Modeling Chapter, Proceedings of the 6th International Symposium on Functionally Graded Materials, Colorado, USA, September 2000, Ceramic Transactions, Edited by K. Trumble; K. Bowman; I. Reimanis; S. Sampath.

Articles published international journals

J1. El-Borgi, S., Erdogan, F. and Hidri, L., "Stress Intensity Factors for a Crack Arbitrarily Oriented in a Functionally Graded Layer", Ceramic Transactions, 114:723-730, 2001.

J2. El-Borgi, S., Erdogan, F., Hila, H. and Smaoui, H., "Thermo-mechanical Stress Intensity Factors for a Partially Insulated Crack in a Functionally Graded Medium", Ceramic Transactions, 114:755-762, 2001.

J3. El-Borgi, S., Erdogan, F. and Ben Hatira, F., "Stress Intensity Factors for an Interface Crack between a Functionally Graded Coating and a Homogeneous Substrate", International Journal of Fracture, 123: 139-162, 2003.

J4. El-Borgi, S., Erdogan, F. and Hidri, L., "A Partially Insulated Embedded Crack in an Infinite Functionally Graded Medium under Thermo-mechanical Loading", International Journal of Engineering Science, 42: 371-393, 2004.

J5. Choura, S., El-Borgi S. and Nayfeh, A., "A Hybrid Control of Seismically-Excited Structures by Confinement of Vibrations", Journal of Vibration and Control, 10: 543-560, 2004.

J6. El-Borgi, S., Keer, L. and Ben Said, W., "An Embedded Crack in a Functionally Graded Coating Bonded to a Homogeneous Substrate Under Frictional Hertzian Contact", Wear, An International Journal on the Science and Technology of Friction, Lubrication and Wear, 257(7-8): 760-776, 2004.

J7. Choura, S., El-Borgi, S. and Nayfeh, A., "Axial Vibration Confinement in Nonhomogeneous Rods", Journal of Shock and Vibration, 12(3): 177-195, 2005.

J8. El-Borgi, S., Smaoui, H., Casciati, F., Jerbi, K. and Kanoun, F., "Seismic Evaluation and Innovative Retrofit of a Historical Building in Tunisia", Journal of Structural Control and Health Monitoring, 12(2): 179-196, 2005.

J9. El-Borgi, S., Choura, S., Ventura, C., Baccouch, M. and Cherif, F., "Modal Identification and Model Updating of a Reinforced Concrete Bridge", International Journal of Smart Structures and Systems, 1(1): 83-101, 2005.

J10. Najar F., Choura, S., El-Borgi S., Abdel-Rahman E.M. and Nayfeh A.H. "Modeling and Design of Variable-Geometry Electrostatic Microactuators", Journal of Micromechanics and Microengineering, 15: 1-15, 2005.

J11. El-Borgi, S., Abdelmoula, R. and Keer, L. "A Receding Contact Plane Problem between a Functionally Graded Layer and a Homogeneous Substrate", International Journal of Solids and Structures, 46: 658-674, 2006.

J12. Baccouch, M., Choura, S., El-Borgi S. and Nayfeh, A., "On the Selection of Physical and Geometrical Properties for the Confinement of Vibrations in Non-Homogeneous Beams", ASCE Journal of Aerospace Engineering, 19(3):158-168, 2006.

J13. El-Borgi, S., Hidri, L. and Abdelmoula, R. "An Embedded Crack in a Graded Coating Bonded to a Homogeneous Substrate under Thermo-mechanical Loading", Journal of Thermal Stresses, 29: 439-466, 2006.

J14. El-Borgi, S., Aloulou, W. and Zghal, A., "Buckling of a Functionally Graded Coating with an Embedded Crack bonded to a Homogeneous Substrate", International Journal of Fracture, 142:137-150, 2006.

J15. Ouled Chtiba, M., Choura, S., El-Borgi, S. and Nayfeh, A.H. "Passive Control of Flexible Structures by Confinement of Vibrations", Journal of Shock and Vibration, 14(5):321-337, 2007.

J16. F. Najar, S. Choura, E. M. Abdel-Rahman, S. El-Borgi and A. Nayfeh, "Dynamic Analysis of Variable-Geometry Electrostatic Microactuators", Journal of Micromechanics and MicroEngineering, 16:2449–2457, 2006.

J17. Mezghani, B., Tounsi, F., Smaoui, S., Haboura, K., El-Borgi, S., Choura, S. and Masmoudi, M., "Modelling and Simulation of a New Micromachined Acoustic Sensor", Trends in Applied Sciences Research, 1(5):456-466, 2006.

J18. El-Borgi, S., Abdelmoula, R., Dag, S. and Lajnef, N., "A Surface Crack in a Graded Coating bonded to a Homogeneous Substrate under General Loading Conditions". Journal of Mechanics of Materials and Structures, 2(7):1331-1354, 2007.

J19. El-Ouafi Bahlous, S., Abdelghani, M., Smaoui, H. and El-Borgi, S., "A Modal Filtering and Statistical Approach for Damage Detection and Diagnosis in Structures using Ambient Vibrations Measurements", Journal of Vibration and Control, 13(3):281-308, 2007.

J20. El-Borgi, S., Djemel, M.F. and Abdelmoula, R., "A Surface Crack in a Graded Coating bonded to a Homogeneous Substrate under Thermal Loading". Journal of Thermal Stresses, 31:1-19, 2008.

J21. El-Borgi, S., Neifar, M., Cherif, F, Choura, S. and Smaoui, H., "Modal Identification, Model Updating and Nonlinear Analysis of a Reinforced Concrete Bridge". Journal of Vibration and Control, 14(4):511-530, 2008.

J22. El-Borgi, S., Choura, S., Neifar, M., Majdoub, M.S. and Cherif, D., "Seismic Vulnerability Assessment of a Historical Building in Tunisia ". International Journal of Smart Structures and Systems, 4(2), March 2008.

J23. El-Borgi, S., Neifar, M., Ben Jabeur, M., Cherif, D. and Smaoui, H. "Use of Copper Shape Memory Alloys in Retrofitting Historical Monuments". International Journal of Smart Structures and Systems, 4(2), March 2008.

J24. Aloui, S., Othman, R., Poitou, A., Guégan, P. and El-Borgi, S., "Non-parametric identification of the non-homogeneous stress in high strain-rate uni-axial experiments ". Journal of Mechanics Research Communications 35:392–397, 2008.

J25. Gharbi, M., El-Borgi, S. and Chafra, M., "A Surface Crack in a Graded Coating bonded to a Homogeneous Substrate under Transient Thermal Loading". Journal of Thermal Stresses, 32(4):395-413, 2009.

J26. Aloulou, W., Yildirim, B., El-Borgi, S. and Zghal, A., "Buckling of an Orthotropic Graded Coating with an Embedded Crack bonded to a Homogeneous Substrate". International Journal of Solids and Structures, 46(9):1890-1900, 2009.

J27. Kallel-Kamoun, I., Elloumi, R. and El-Borgi, S., "Partial Slip Contact Problem in a Graded Half Plane". Accepted for publication in the Journal of Computational and Theoretical Nanoscience, 2009.

J28. El-Ouafi Bahlous, S., Smaoui, H. and El-Borgi, S., "Experimental validation of an ambient vibration-based multiple damage identification method using statistical modal filtering", Journal of Sound and Vibration, 325:49-68, 2009.

J29. Ferdjani, H., Abdelmoula, R., Marigo, J.-J. and El Borgi, S., "Study of size effects in the Dugdale model through the case of a crack in a semi-infinite plane under anti-plane shear loading", Continuum Mechanics and Thermodynamics, 21(1):41-55, 2009.

J30. Rhimi, M., El-Borgi, S., Ben Said, W. and Ben Jemaa, F., "A Receding Contact Axisymetric Problem between a Functionally Graded Layer and a Homogeneous Substrate". Accepted for publication at the International Journal of Solids and Structures, June, 2009.

Papers presented at international conferences

C1. El-Borgi, S., Riley, M., Sadek, F. and Ayed, N., "Semi-active Control of Linear and Hysteretic Structures using Variable Viscous and Magnetorheological Dampers", Proceedings of the 2nd European Conference on Structural Control, Paris, France, July 2000.

C2. El-Borgi, S., Zammali, C. and Tsopelas, P., "Semi-active Control of 3-D Linear and Hysteretic Structures for Seismic Applications", Proceedings of the 3rd International Workshop on Structural Control, Paris, France, July 2000.

C3. Ben Ftima, M., Sadek, F., El-Borgi, S. and Riley, M., "Stochastic Linearization for Control of Hysteretic Structures using Algorithm", Proceedings of the 19th International Modal Analysis Conference (IMAC), Florida, February 2001.

C4. El-Borgi S, Smaoui H., Kanoun F., Gharairi A., Bahlous, S. and Chaouachi L., "Output-only Modal Identification and Seismic Evaluation of a Historical Building in Tunisia", Proceedings of the 3rd World Conference on Structural Control. Como, Italie, April 2002.

C5. El-Borgi S, Sadek F., Jemai B., Walha, M.A. and Riley M.A., "Semi Active Control of Seismically Excited Hysteretic Structures using Variable Viscous Dampers", Proceedings of the 3rd World Conference on Structural Control. Como, Italie, April 2002.

C6. Choura, S., El-Borgi S., Abichou A. and Nayfeh, A., "Control of Seismically Excited Structures by Passive Confinement of Vibrations", Proceedings of the 3rd World Conference on Structural Control, Como, Italie, April 2002.

C7. Sadek, F., Ben Ftima, M., El-Borgi, S., McCormick, J. and Riley, M., "An Innovative Approach for Controlling Hysteretic Structures Using Static Output Feedback H¥ Algorithm and Stochastic Linearization Techniques", Proceedings of the 3rd World Conference on Structural Control. Como, Italie, April 2002.

C8. El-Borgi, S., Erdogan, F. and Ben Htira, F., "An Interface Crack between a Functionally Graded Coating and a Homogeneous Substrate under Thermo-mechanical Loading", Proceedings of the 7th International Symposium on Functionally Graded Materials, Beijing, Chine, October 2002.

C9. El-Borgi, S., Erdogan, F. and Hidri, L., "Crack-Closure Effects on a Partially Insulated Crack in a Functionally Graded Medium under Thermal Loading", Proceedings of the International Congress on Thermal Stresses, Virginia Tech, Blacksburg, Virginia, USA, June 2003.

C10. El-Borgi S., Smaoui, H., Ventura, C., Cherif, F. and Kanoun, F., "Output-only Modal Identification and Model Updating of a Reinforced Concrete Bridge", Proceedings of the 22nd International Modal Analysis Conference, Dearborn, Michigan, USA, January 2004.

C11. Temimi, H., El-Borgi, S., Choura, S., M. and Sadek, F., "Time Delay Effects on Semi-Active Control of Seismically Excited Nonlinear Structures", Proceedings of the 3rd European Conference on Structural Control, Vienna, Austria, July 2004.

C12. Ouled Chtiba, Choura, S., El-Borgi, S. and Nayfeh, A.H., "Design of Passive Controllers for the Confinement of Structural Vibrations", Proceedings of the 3rd European Conference on Structural Control, Vienna, Austria, July 2004.

C13. Ouled Chtiba, Choura, S., El-Borgi, S. and Nayfeh, A.H., "Hybrid Control of Seismically Excited Structures by Vibration Confinement", Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, British Columbia, Canada, August 2004.

C14. Ouled Chtiba, M., Choura, S., El-Borgi, S. and Nayfeh, A.H., "Control of Flexible Structures by Confinement of Vibrations Using the LQR Optimal Control Approach", Proceedings of the 2nd International Industrial Engineering Conference, Riyadh, Saudi Arabia, December 2004.

C15. Abdelghani, M., Elouafi Bahlous, S., El-Borgi, S. and Smaoui, H., "A Modal Filtering and Statistical Approach for Damage Detection and Localization in Vibrating Structures under in-operation conditions ", Proceedings of the 2nd European Workshop on Structural Health Monitoring, Munich, Germany, July 2004.

C16. Dag, S., El-Borgi, S. and Erdogan, F., "Partial Closure Analysis of a Surface Crack in a Graded Medium Loaded by a Frictional Flat Stamp”, Accepted for presentation at the 11th International Congress on Fracture, Italy, April 2005.

C17. El-Borgi, S., Choura, S., Ventura, C., Neifar, C., Annabi, M., Baccouch, M. et Maalej, R. "Output-Only Modal Identification of Existing Reinforced Concrete Structures”, Proceedings of the 1st International Operational Modal Analysis Conference, Copenhagen, Denmark, April 2005.

C18. El-Borgi, S., Choura, S., Neifar, M., Smaoui, H., Majdoub, M.S. and Cherif, D. "Towards a Rational Methodology for the Seismic Vulnerability Assessment and Retrofitting of a Historical Building”, Proceedings of the 4th World Conference on Structural Control, San Diego, California, USA, July 2006.

C19. Choura, S., Yigit, A.S., El-Borgi, S. and Nayfeh, A.H. "Confinement and Suppression of Vibrations in Linear Time-Varying Structures”, Proceedings of the 4th World Conference on Structural Control, San Diego, California, USA, July 2006.

C20. Chaabane G., Abdel-Rahman E. M., Nayfeh A. H., Choura S., El-Borgi S. and Jammoussi H. “Dynamic Analysis of a Digital Micromirror Device”, Proceedings of the ASME International Mechanical Engineering Congress & Exposition, Chicago, IL, USA, 2006.

C21. Najar F., Choura S., Abdel-Rahman E. M., Nayfeh A. H. El-Borgi S. “A Dynamic Analysis of Variable-Geometry Electrostatic Microactuators”, Proceedings of the 11th Conference on Nonlinear Vibrations, Stability, and Dynamics of Structures, Blacksburg VA, USA, August, 2006.

C22. El-Borgi, S., Abdelmoula, R., Dag, S. and Lajnef, N., "A Surface Crack in a Graded Coating bonded to a Homogeneous Substrate under General Loading Conditions". Proceedings of the Third International Conference on Advances in Mechanical Engineering and Mechanics, Hammamet, Tunisia, December 2006.

C23. El-Borgi, S., Sellami, M. and Kallel Kammoun, I., "Contact Mechanics of an Orthotropic Graded Coating bonded to a Homogeneous Substrate". Proceedings of the Third International Conference on Advances in Mechanical Engineering and Mechanics, Hammamet, Tunisia, December 2006.

C24. Hajj, M.R, Chabalko, C.C., Duke, J.C., El-Borgi, S., Elouafi Bahlous, S., and Choura, S., " Damage Characterization Through Nonlinear Analysis of Transient Vibrations ", Proceedings of the 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference; Newport, RI; USA, May 2006.