1. College of Transportation Engineering, Dalian Maritime University, Dalian 116026, China
2. Xi’an Aerospace Composites Research Institute, Xi’an 710025, China
3. Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
4. Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634-0978, United States