1. CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China (USTC), Hefei, Anhui 230027, P. R. China
2. State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Science, 15 Beisihuan West Road, Beijing 100190, China
3. State Key Laboratory of Fire Science, University of Science and Technology of China, 96, Jinzhai Road, Hefei, Anhui 230026, P. R. China