American Academy of Mechanics (AAM) – Fellow
American Institute of Aeronautics and Astronautics (AIAA) – Associate Fellow
American Society of Civil Engineers (ASCE) – Fellow
American Society for Engineering Education (ASEE)
American Society of Mechanical Engineers (ASME) – Fellow
Chi Epsilon, LSU Chapter
Sigma Xi – The Scientific Research Society, Kappa Chapter Columbia University
Society of Engineering Science
Member al large to the Executive Committee for the Materials Division, July 2011- June 2012.
American Academy of Mechanics (AAM) Awards Committee, September 2007 – December 2008.
On the Editorial Advisory Board of the International Journal of Damage Mechanics, 2007-present.
Board of Directors of the Society of Engineering Science, January 2004 – December 2008, Vice President 2005-2006, President 2006-2007.
Board of Governors, Engineering Mechanics Institute, American Society of Civil Engineers (ASCE), October 2007 – October 2010.
Member of the Executive Committee of the American Society of Civil Engineers, Engineering Mechanics Division, October 2006 – October 2007.
On the 2005 Scientific Advisory Board of Damage Mechanics of the 11th International Conference on Fracture, Turin, Italy, 2004-2005.
On the 2005 Scientific Committee of the International Union of Theoretical and Applied Mechanics (IUTAM) Symposium on “Multiscale Modeling of Damage and Fracture Process in Composite Materials,” Lublin, Poland, 2004-2005.
Editorial Advisory Board of the Journal of Mechanical Behavior of Materials (2004 – present).
On the 2004 Scientific Committee of the International Conference on Numerical Methods in Industrial Forming Processes (NUMIFORM), The Ohio State University, Columbus, Ohio, Materials, 2003-2004.
On the 2002 Scientific Committee of the International Union of Theoretical and Applied Mechanics (IUTAM) Symposium on “Multiscale Modeling and Characterization of Elastic-Inelastic Behavior of Engineering Materials,” Marrakesh, Morocco, 2001-2003.
On the International Advisory Committee of the International Conference on Constitutive Laws for Engineering Materials, 1998-present.
Editorial Advisory Board of the International Journal of Plasticity (1995-present).
Editorial Advisory Board of the Journal of Engineering Mechanics, ASCE (1997 – 1999, 2005-2010).