1. George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405
2. George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 e-mail:
3. MR&D, Boeing Research and Technology, St. Louis, MO 63166
4. Metals Technology Integration, Boeing Research and Technology, St. Louis, MO 63166