1. Research Associate, Dept. of Civil Engineering, Univ. of Akron, Akron, OH 44325-3905; Lecturer, Dept. of Engineering Mechanics, Hohai Univ., 1 Xikang Rd., Nanjing, Jiangsu 210098, China.
2. Professor, Dept. of Engineering Mechanics, Hohai Univ., 1 Xikang Rd., Nanjing, Jiangsu 210098, China.
3. Distinguished Professor, Dept. of Civil Engineering, Univ. of Akron, Akron, OH 44325-3905 (corresponding author).
4. Research Professor, Corrosion and Reliability Engineering, Univ. of Akron, Akron, OH 44325-9006.
5. Associate Professor, Dept. of Civil Engineering, Univ. of Akron, Akron, OH 44325-3905.