Service to Engineering Community

• General Chairman of the 7th World Congress on Computational Mechanics, to be held in Century Plaza Hotel and Spa, July 16-22, 2006.
• Co-Chairman of the 6th World Congress on Computational Mechanics, Beijing Hotel, Beijing, China, September 5-10, 2004
• General Chairman of McNU'97, The 1997 Joint American Society of Mechanical Engineers (ASME) /American
• Society of Civil Engineers(ASCE)/Society of Engineering Science (SES)
• Summer Meeting, sponsored by McCORMICK School of Engineering, Northwestern University,
• ASME Applied Mechanics Division (AMD), ASME Materials Division (MD), ASME
• Manufacturing Engineering Division (MED), ASCE Engineering Mechanics Division (EMD),
• Society of Engineering Science (SES), Army High Performance Computing Research Center (AHPCRC),
• Chicago Section of Society of Automotive Engineers (SAE), Institute for Mechanics and Materials (IMM), University of California, San Diego, ISUZU Advanced Engineering Center, LTD, Kanagawa-ken, JAPAN, National Science Foundation, Office of Naval Research, held on June 29 - July 2, 1997, at Norris Center, Northwestern University. 210 sessions with 1024 papers, and 1050 participants from 43 countries.
• President of U. S. Association for Computational Mechanics, (Elected) 2000-2002
• Member of the executive committee of Applied Mechanics Division (AMD) of ASME (Chairman in 2005)
• Member of ASME AMD Timoshenko Medal Committee, 2001 - 2010
• Member of ASME AMD Warner T. Koiter Medal Committee, 2001 – 2010
• Member of ASME AMD Daniel C. Drucker Medal Committee, 2001 – 2010
• Member of ASME AMD Young Investigator Award Committee, 2001 – 2005
• Member of ASME AMD Applied Mechanics Award Committee, 2001 - 2005
• Member of the International Association for Computational Mechanics General Council, (Elected), 1994-
• Vice President of U. S. Association for Computational Mechanics, (Elected) 1998-2000
• Treasurer of U. S. Association for Computational Mechanics, (Elected) 1996-1998
• Secretary of U. S. Association for Computational Mechanics, (Elected) 1994-1996
• Chairman of Computing in Applied Mechanics Committee, ASME, 1993-1995
• Vice-Chairman of Computing in Applied Mechanics Committee, ASME, 1991-1993
• Program Chiarman of the First US National Congress for Computational Mechanics, 1991.
• Member at Large of U. S. Association for Computational Mechanics, 1991-1994
• Vice-Chairman of Computational Mechanics Committee, ASCE, 1987-1988 and 1990-1991
• Chairman of Computational Mechanics Committee, ASCE, 1988-1990
• Member of the Control Group, ASCE, 1986-1991
• Treasurer, American Academy of Mechanics, 1983-1988
• Judge for National and Regional Robotic Competitions for FIRST, 1997-