1. Ph.D. Candidate, School of Civil Engineering, Dalian Univ. of Technology, Dalian 116024, China.
2. Professor, School of Civil Engineering, Dalian Univ. of Technology, Dalian 116024, China (corresponding author).
3. Professor, Dept. of Mechanical Engineering, New York Institute of Technology, New York, NY 11568; Professor, School of Mechanical Engineering, Wuhan Univ. of Science and Technology, Wuhan 430081, China.
4. Associate Professor, School of Materials Science and Engineering, Dalian Univ. of Technology, Dalian 116024, China.