Citations: Since 2015: 1056 citations per year; H-index 36; i10-index 112 (Source: Google Scholar)

  • Nonlinear Beam Theory (Principal Investigator), Structures Task 1 under the Center of Excellence for Rotary Wing Aircraft Technology (Daniel P. Schrage, Director), sponsored by the U.S. Army Research Office, Jan. 15, 1988 – Jan 14, 1993.
  • Unsteady Aerodynamics for Rotor Aeroelasticity (Co-Principal Investigator with David A. Peters), Aeroelasticity Task 1 under the Center of Excellence for Rotary Wing Aircraft Technology (Daniel P. Schrage, Director), sponsored by the U.S. Army Research Office, Jan. 15, 1988 – Jan 14, 1993.
  • Improved Calculation of the Floquet Transition Matrix from Space-Time Finite Elements Based on a Mixed Variational Principle (Principal Investigator), sponsored by the U.S. Army Research Office, Short Term Innovative Research Program, July 1, 1988 – Dec. 31, 1988.
  • Symbolic Computation Laboratory (Principal Investigator), sponsored by the U.S. Army Research Office, Department of Defense University Research Instrumentation Program, administered by the Office of Naval Research,   Oct. 1, 1988 – Sept. 30, 1989.
  • MH-53H/J Aeroelastic Modeling and Vibrations (Co-Principal Investigator with David A. Peters), task under Investigation of Maximum Gross Weights and Operating Restrictions for the MH-53H and MH-53J Helicopters (Daniel P. Schrage, Director), sponsored by the U.S. Air Force Warner-Robbins ALC, Oct. 1, 1988 – June 30, 1989.
  • Optimal Guidance Law Development for an Advanced Launch System (Co-Principal Investigator with A. J. Calise), sponsored by NASA Langley Research Center, Dec. 1, 1988 – Mar. 30, 1992.
  • Stability of Elastically Tailored Rotor Systems (Co-Principal Investigator with Lawrence W. Rehfield), sponsored by the U.S. Army Research Office, Dec. 1, 1988 – Sept. 30, 1992.
  • Development of Space-Time Finite Elements for Nonlinear Transient Response of Flexible Structures (Co-Principal Investigator with D.A. Peters), sponsored by the National Science Foundation, Nov. 15, 1989 – Apr. 30, 1993.
  • Modeling of Composite Beams and Plates for Static and Dynamic Analysis. Sponsored by the U.S. Army Aerostructures Directorate, Langley Research Center, Jan. 16, 1990 – Mar. 15, 1993.
  • Development of an hp-Version Finite Element Method for Computational Optimal Control, sponsored by NASA Langley Research Center, Apr. 1, 1992 – Nov. 1, 1994.
  • Three-Dimensional Dynamics of Composite Beams Including Edge-Zone Behavior (Co-Principal Investigator with V. L. Berdichevsky), Structures and Materials Task 1 under the Center of Excellence for Rotorcraft Technology (Daniel P. Schrage, Director), sponsored by the U.S. Army Research Office, Nov. 1, 1992 – Oct. 31, 1995.
  • Composite Rotor Blade Aeroelasticity with Three-Dimensional Aerodynamics (Co-Principal Investigator with D. A. Peters), Rotorcraft Dynamics and Aeroelasticity Task 2 under the Center of Excellence for Rotorcraft Technology (Daniel P. Schrage, Director), sponsored by the U.S. Army Research Office, Nov. 1, 1992 – Oct. 31, 1995.
  • ARO Augmentation Grant for Equipment (Co-Principal Investigator with V. L. Berdichevsky), Structures and Materials Task 1 under the Center of Excellence for Rotorcraft Technology (Daniel P. Schrage, Director), sponsored by the U.S. Army Research Office, Sept. 1993.
  • Thin-Walled Composite Beams with Optimum Couplings (Co-Principal Investigator with E. A. Armanios, V. L. Berdichevsky, N. Komerath, and M. Kamat), Task RSI-2 under Augmentation Grant for the Center of Excellence for Rotorcraft Technology (Daniel P. Schrage, Director), sponsored by the U.S. Army Research Office, Apr. 15, 1994 – Sept. 1996.
  • Sectional Analysis of Composite Rotor Blades Accounting for Realistic Blade Design, Task RSI-4 under Augmentation Grant for the Center of Excellence for Rotorcraft Technology (Daniel P. Schrage, Director), sponsored by the U.S. Army Research Office, Apr. 15, 1994 – Sept. 1996.
  • Aeroelastic Stability of Closed-Cell Composite Wings, NASA Graduate Student Research Program, July 1 – Dec. 31, 1994.
  • Aeromechanics – CFD-CSD Interface Methods (Co-Principal Investigator with M. J. Smith), sponsored by Wright Labs, U.S. Air Force, Sept. 14, 1994 – Mar. 13, 1996.
  • Research in Structural Dynamics (Co-Principal Investigator with V. L. Berdichevsky), sponsored by the U.S. Air Force Office of Scientific Research, Sept. 1, 1994 – August 31, 1997.
  • Finite Element and Analytical Cross-Sectional Analysis of Composite Rotor Blades for Nonclassical Beam Formulations (Task 5.1 of a grant to the Center of Excellence of Rotorcraft Technology), Sponsored by the National Rotorcraft Technology Center, Jan. 1, 1996 – Dec. 31, 2000.
  • Aeroservoelasticity of Composite-Winged Aircraft (Co-Principal Investigator with C. Cesnik and M. J. Smith), Sponsored by the U.S. Air Force Office of Scientific Research, Oct. 1, 1997 – Dec. 31, 2000.
  • Computational and Experimental Studies of Horizontal Axis Wind-Turbine Systems, sponsored by the National Renewable Energy Laboratory, Oct. 1, 1998 – Sept 12, 1999.
  • Multi-Flexible-Body Analysis for Application to Wind-Turbine Control Design, sponsored by the National Renewable Energy Laboratory, over four years, Sept. 13, 1999 – Sept. 30, 2003.
  • Comprehensive Aeromechanical Analysis Using Integrated Analysis Tools (Co-Principal Investigator with O. A. Bauchau and J. I. Craig), sponsored by the Rotorcraft Industry Technology Association, over 2 years, Jan. 5, 2000 – Mar. 31, 2002.
  • A New Approach to Aeroelastic Response, Stability, and Loads of Missiles and Projectiles, sponsored by the U.S. Army Research Office, over 3 years, June 19, 2000 – Mar. 18, 2004.
  • Multibody Approach to the Dynamic Analysis of Space Structures with Actuated Components (Co-Principal Investigator with O. A. Bauchau), sponsored by the U.S. Air Force Office of Scientific Research, over 3 years Dec. 20, 2000 – Dec. 19, 2003.
  • Composite Beam Cross-Sectional Optimization (Co-Principal Investigator with V. Volovoi), Task 5.3 of a grant to the Center of Excellence of Rotorcraft Technology, sponsored by the National Rotorcraft Technology Center, over five years, Jan. 1, 2001 – present.
  • Aeromechanical Analysis Tools for Advanced Design (Co-Principal Investigator with O. A. Bauchau and J. I. Craig), sponsored by the Rotorcraft Industry Technology Association, over 2 years, Apr. 1, 2002 – Sept. 30, 2004.
  • Development and Validation of Accurate and Efficient Cross-Sectional Analysis Tools (Co-Principal Investigator with O. A. Bauchau, J. I. Craig, and V. V. Volovoi), sponsored by the Rotorcraft Industry Technology Association, over 3 years, Apr. 1, 2004 – present.
  • A Computational Method to Evaluate the Non-linear Aeroelastic Behavior of High Aspect Ratio Wings of Long Endurance (HARLE) Aircraft (Co-Principal Investigator with M. J. Smith), sponsored by the National Institute of Aerospace, NASA Langley Research Center, over 1 year, May 18, 2004 – May 17, 2005.
  • Advanced Models for Nonlinear Thermo-Mechanical Analysis of Deep, Layered Shells (Co-Principal Investigator with O. A. Bauchau), sponsored by the National Institute of Aerospace, NASA Langley Research Center, over 1 year, May18, 2004 – May 17, 2005.
  • Nonlinear Aero-Servo-Elastic Modeling of HALE Aircraft (Co-Principal Investigator with M. J. Patil of Virginia Tech), sponsored by NASA Dryden Flight Research Center, over 1 year, Aug. 1, 2005 ­- Dec. 31, 2007.
  • Rotor Blade Cross-sectional Analysis and Design, task on Heliplane Demonstrator Aircraft, sponsored by DARPA, over 15 months, Nov. 4, 2005 – Mar. 22, 2007.
  • Efficient High-fidelity Multi-Physics Tools for Smart Blade Analysis and Design (Co-Principal Investigator with W. Yu of Utah State and V. V. Volovoi), Task 9 of a grant to the Georgia Tech Vertical Lift Research Center of Excellence, sponsored by the U.S. Army, over five years, July 1, 2006 – June 30, 2011.
  • Control of Vibration Transmission and Interior Noise Radiation of Composite Shells with Embedded Passive and Active Periodicity (Co-Principal Investigator with Massimo Ruzzene and Ken Cunefare), NASA Langley Research Center, over three years, Jan. 1, 2007 – Dec. 31, 2009.
  • Nonlinear Aeroelastic Trim and Stability Analysis Tool (Co-Principal Investigator with Mayuresh Patil of Virginia Tech), sponsored by NASA Dryden, over 18 months, June 1, 2008 – Dec. 31, 2009.
  • Fan/Blade Case Coincidence Study, sponsored by Pratt & Whitney Aircraft, Aug. 29, 2008 – May 31, 2009.
  • Rotor Trim and Stability Analysis, sponsored by Bell Helicopter Textron, Oct. 9, 2008 – Dec. 31, 2009.
  • Treatment of the Edge Zone of Plates and Shells, (A task of Multi-Scale Structural Health Monitoring Approach for Damage Detection, Jennifer Michaels Project Director), sponsored by the Air Force Office of Scientific Research, Jan. 15, 2009 – present.
  • KC-135 Aeroelasticity Modeling Support, sponsored by U.S. Air Force through Georgia Tech Research Institute, June 1 – Aug. 31, 2009.
  • VABS Enabled Design Environment for Efficient High-Fidelity Composite Rotor Blade and Wing Section Design (teamed with ADI, Inc. and Wenbin Yu of Utah State), SBIR Phase II sponsored by the U.S. Army, Oct. 20, 2009 – Oct. 19, 2011.
  • Mission Adaptive Rotor (Lakshmi Sankar, Proj. Dir.), sponsored by DARPA through the Boeing Company, Mesa, Arizona, July 1, 2010 – October 31, 2011.
  • Structural Support for AVELA High Efficiency Aircraft, sponsored by the U.S. Air Force through Bihrle Applied Research, Hampton, Virginia, Nov. 15, 2010 – June 30, 2012.
  • Next-Generation VABS for More Realistic Modeling of Composite Blades (Co-Principal Investigator with W. Yu of Purdue), Task 1 of a grant to the Georgia Tech Vertical Lift Research Center of Excellence, sponsored by the U.S. Army, Sept. 1, 2011 – Aug. 31, 2016.
  • Collaborative Research in the Mathematical, Computational and Experimental Modeling of the Multidisciplinary Dynamics of Fluid-Structure Interaction, sponsored by the National Science Foundation, Oct. 1, 2011 – Sept. 30, 2013.
  • Design and Implementation of Active Controls for Gust Load Alleviation and Flutter Suppression for a HALE Aircraft, sponsored by Bihrle Applied Research, Hampton, Virginia, Aug. 15 – Dec. 31, 2012.
  • Design and Implementation of Active Controls for Gust Load Alleviation and Flutter Suppression for a HALE Aircraft, sponsored by Bihrle Applied Research, Hampton, Virginia, Aug. 15, 2012 – May 15, 2013.
  • Collaborative Research: Power Generation from Fluid-Structure Interaction using Mathematical, Computational and Experimental Modeling, sponsored by the National Science Foundation, Sept. 1, 2013 – Aug. 31, 2016.
  • Structural Health Monitoring and Prognostic Control, sponsored by Sandia National Laboratories, Phase I, Oct. 1, 2013 – Dec. 31, 2014.
  • Progressive Damage Prediction Techniques for Composite HALE Aircraft Wings, sponsored by the Air Force Office of Scientific Research, Sept. 15, 2014 – Sept. 14, 2017.
  • VABS as a Tool for Real Blade Analysis, Design and Certification (Co-Principal Investigator with W. Yu of Purdue), Task 3 of a grant to the Georgia Tech Vertical Lift Research Center of Excellence, sponsored by the U.S. Army, Nov. 25, 2016 – Nov. 24, 2019.