1. Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, Beijing Institute of Aeronautical Materials, Beijing 100095, CN.
2. Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, CN (Corresponding author), e-mail: tangcanvip@126.com
3. Dept. of Engineering Mechanics, Applied Mechanics Lab, Tsinghua Univ., Beijing 100084, CN.