Girum Urgessa

Girum Solomon Urgessa, Ph.D., P.E.

Associate Professor, Structural Engineering
Telephone: (703) 993-1658
Email: gurgessa@gmu.edu
2222 Nguyen Engineering Building

Education:

  • PhD, Structural Engineering, The University of New Mexico, 2006
  • MS, Structural Engineering, The University of New Mexico, 2002
  • BS, Civil Engineering, Addis Ababa University, 2000

Teaching:

  • Undergraduate: Statics, Combined Statics and Dynamics, Mechanics of Materials, Structural Analysis, Reinforced Concrete Design
  • Graduate: Security of Structural Systems, Adv. Mechanics of Materials, Adv. Structural Analysis, Adv. Reinforced Concrete Design, Structural Dynamics

Research Interests:

  • Structural Dynamics (emphasis on blast/impact)
  • Cementitious Materials (emphasis on polymers in concrete)
  • Composite Materials (emphasis on structural retrofits)
  • Stability (emphasis on temporary structures)

Professional Service:

  • American Society of Civil Engineers (ASCE)
  • American Concrete Institute (ACI)

Faculty Profile:

Dr. Girum Urgessa is an Associate Professor of Civil Engineering and an Affiliate Faculty of the C4I & Cyber Center at George Mason University. He received his MS and PhD from the University of New Mexico, and his BS from Addis Ababa University. Prior to joining George Mason University in 2007, he was a research engineer in the Applied Science Division of Weidlinger Associates, and a structural engineer at Dekker/Perich/Sabatini both in Albuquerque, NM. His research interests include dynamic response of structures subjected to extreme loads (blast and impact), the use of polymers in concrete, fiber reinforced polymer composites for structural design and retrofit applications, and structural stability of temporary structures. Dr. Urgessa is currently a member of the ASCE/SEI’s technical committee on dynamic effects, sub-committee on retrofit of structures under dynamic loads. He was a voting member of ACI’s technical committee on blast and impact load effects (ACI 370) and TRB’s technical committee on field testing and non-destructive evaluation of transportation structures (AFF 40). Dr. Urgessa is a licensed professional engineer in the State of Maryland.

PhD Students:

  • 2 graduated at Mason [Lieutenant Colonel Robert Sobeski, and Wondwosen Ali]; 1 co-advised and graduated at ITA-Brazil [Captain Fausto Batista Mendonca]
  • 2 current at Mason [Javad Esfandiari, and Geoffrey Dilg]; 1 co-advising at AAIT-Ethiopia [Yohannes Lisanework]

MS Thesis/Project Students:

  • 3 MS thesis graduated [Andrei Denes, Sara Mohamadi, and Nouri Hacene-Djaballah]; 13 MS project graduated

Undergraduate/High School Students:

  • current [Ahmed Ibrahim]; graduated [John Austin, Nicole Fontenot, Roy McDaniel, and Mariana Cruz]

Publications:

Books and Book Chapters:

Journal Articles:

Conference Papers:

  • F.B. Mendonca, L.E.N. de Almeida, G. Urgessa, J.A.F.F. Rocco, R.F.B. Goncalves, and K. Iha
    “Reactive Molecular Dynamics Simulation of the Detonation Pressure of Plastic Explosive-PBX,” Proceedings of the 1st World Conference on Advanced Materials for Defense, Lisbon, Portugal, September 2018, 6 pages.
  • G.S. Urgessa and M. J. Esfandiari
    “Review of Polymer Coatings Used for Blast Strengthening of Reinforced Concrete and Masonry Structures,” Proceedings of the 18th International Congress on Polymers in Concrete, Washington, D.C., April 2018, pp. 713-719.
  • J. Austin and G. Urgessa
    “Structural Response Caused by Underwater Explosions,” Proceeding of the National Conference on Undergraduate Research, Edmond, OK, April 2018, pp. 444-452.
  • F.B. Mendonca, G. Urgessa, K. Iha, R.J. Rocha, and J.A.F.F. Rocco
    “Peak Displacement Comparison of RC Slabs from Blast Test Measurement and SDOF Analysis,” Proceedings of the 19th Symposium of Operational Applications in Areas of Defense, San Jose dos Campos, Brazil, September 2017, 5 pages.
  • H. Hardjasaputra, G. Ng, G. Urgessa, G. Lesmana and S. Sidharta
    “Performance of Lightweight Natural-fiber Reinforced Concrete,” Proceedings of the 6th International Conference of Euro Asia Civil Engineering, Seoul, South Korea, August 2017, 6 pages.
  • S. Mohamadi and G. Urgessa
    “Dynamic Analysis of Fiber-Reinforced Concrete Polymer Composite Electric Poles,” Proceedings of the 9th International Structural Engineering and Construction Conference, Valencia, Spain, July 2017, 6 pages.
  • G. Ng, G. Urgessa, Y. Shifferaw and H. Hardjasaputra
    “Mechanical Properties of Coconut Fiber-Reinforced Concrete,” Proceedings of the 9th International Structural Engineering and Construction Conference, Valencia, Spain, July 2017, 6 pages.
  • F.B. Mendonca, G. Urgessa and J.A.F.F. Rocco
    “Blast Response of 60 MPa Reinforced Concrete Slabs Subjected to Non-Confined Plastic Explosives,” 2017 Structures Congress, American Society of Civil Engineers, Denver, April 2017, pp. 15-26.
  • F.B. Mendonca, J.A.F.F. Rocco, K. Iha and G. Urgessa
    “Blast Response of Reinforced Concrete Slabs with Varying Standoff and Steel Reinforcement Ratios,” The 42nd International Pyrotechnics Society Conference, Grand Junction, CO, July 2016 (extended abstract).
  • G. Urgessa and S. Mohamadi
    “Structural Assessment of Fiber-reinforced Polymer Composite Electric Poles,” Procedia Engineering 145, International Conference on Sustainable Design, Engineering and Construction, Tempe, AZ, May 2016, pp. 707-714.
  • C. Dean, G. Urgessa and M. Azarbayejani
    “Aircraft Wing and Aerodynamic Analysis using Integrated MATLAB and STADD.Pro Models,” Proceedings of the 8th International Structural Engineering and Construction Conference, Sydney, November 2015, pp. 405-410.
  • R. Sobeski and G. Urgessa
    “Concrete Material Flow during Projectile Penetration,” Proceedings of the 2014 Structures Congress, American Society of Civil Engineers, Boston, MA, April 2014, pp. 2048-2059.
  • W. Ali and G. Urgessa
    “Structural Capacities of Spherically Voided Biaxial Slabs (SVBS),” Proceedings of the 2014 Structures Congress, American Society of Civil Engineers, Boston, MA, April 2014, pp. 785-796.
  • S. Fakhriyazdi and G. Urgessa
    “Analysis of a Horizontally Curved I-Girder Bridge for Blast Loading,” Proceedings of the 7th International Structural Engineering and Construction Conference, Honolulu, HI, July 2013, 7 pages.
  • C. Maloney and G. Urgessa
    “Blast Overpressure Effects on Bio-mechanical Systems,” Proceedings of the 12th International Congress and Exposition on Experimental and Applied Mechanics, Society for Experimental Mechanics, Costa Mesa, CA, June 2012, 8 pages.
  • P. Jenkins and G. Urgessa
    “Probabilistic Mechanics of Explosive Fragmentation,” Proceedings of the 12th Pan American Congress of Applied Mechanics, January 2012, 6 pages.
  • C. Chuk, G. Urgessa and H. Thippeswamy
    “Numerical Analysis of Stresses for Cured-In-Place-Pipe (CIPP) Linings,” Proceedings of the 6th International Conference on Fluid Structure Interaction, Orlando, FL, May 2011, pp. 283-294.
  • M. Cruz and G. Urgessa
    “Numerical Evaluation of Mode-II Delamination in Layered Fiber-reinforced Composites,” The 4th Annual Virginia-North Carolina LSAMP Research Symposium, Charlottesville, VA, April 2011, 12 pages.
  • G. Urgessa
    “Finite Element Analysis of Two-dimensional Strain Consolidation under Foundation Loads,” Proceedings of the 16th US National Congress of Theoretical and Applied Mechanics (extended abstract), State College, PA, July 2010, 2 pages.
  • G. Urgessa and T. Arciszewski
    “Structural Behavior of Steel Frame Connections Subjected to Blast,” Proceedings of the 5th International Structural Engineering and Construction Conference, Las Vegas, NV, September 2009, pp. 363-368.
  • M. Casey, G. Urgessa and M. Venigalla
    “Re-examining the Core Computational Skill Set of Civil Engineering Undergraduates,” American Society of Engineering Education Middle Atlantic Section Spring Conference, Baltimore, MD, April 2009, 9 pages.
  • G. Urgessa and A. Maji
    “Blast Response of Carbon-fiber Reinforced Masonry Walls,” Proceedings of the 5th Society for Experimental Mechanics Annual Conference and Exposition, Portland, OR, June 2006, 9 pages.
  • G. Urgessa and A. Maji
    “Blast Test and Analysis of Carbon-fiber Reinforced Masonry Walls,” Proceedings of the 23rd Southeastern Conference on Theoretical and Applied Mechanics, Mayaguez, Puerto Rico, May 2006, 8 pages.
  • G. Urgessa, A. Maji and J. Brown
    “Analysis and Testing of Blast Effects on Walls Strengthened with GFRP and Shotcrete,” Proceedings of the 50th International Society for the Advancement of Materials and Process Engineering Symposium and Exhibition, Long Beach, CA, May 2005, pp. 1135-1144.