1- Fatigue and damage analysis international conference. Hyannis, MA, USA, September 2002.
2- MMC2001 JOINT ASME/ASCE/SES international conference San Diego, USA, July 2001.
3- International Symposium on Plasticity and its current Applications. The Eighth Symposium, July 2000, Whistler, BC, Canada.
4- T. J. Hughes and Ted Bleytsckho “Nonlinear Finite Elements”. July 1999, Palo Alto, California, USA
5- LSTC, “Nonlinear Structural Dynamics with LsDyna3D.” December 1998, Livermore, San Francisco, USA.
6- MACNU International Conference, Chicago, June 1997, USA.
7- Meshing Round Table. October 1996, Pittsburgh PA. USA.
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